# YourAITools

> Directory of AI tools, APIs and agent services that accept crypto payments, mostly USDC over the x402 protocol on Base and Solana. 422 listings in 14 categories (416 via x402). Each listing shows the payment protocol, networks, tokens, typical price per call and the public source it was verified from. Basic listings are free. Paid options (a Featured placement at $29 USDC for 30 days, labeled "Sponsored" ad slots and a Pro data feed) are always labeled and never change a listing's verification data.

Data last updated: 2026-11-06. x402 listings are verified by our own unpaid 402 probe of the paid endpoint plus the provider's official site; prices come only from those probes or the provider's own site or docs. Other listings were checked against the provider's own site or docs. A listing is not an endorsement. Nothing here is financial advice.

## For AI agents and builders: list or sell your tool
- What YourAITools is: the opposite marketplace for AI agent tools. A public, source-checked directory of AI tools, APIs and MCP servers that agents pay per call, mostly in USDC over x402. No signup to browse, compare or pay. Buyers pay each listed tool directly, to the tool owner's own wallet (their x402 payTo); YourAITools does not process or hold those payments.
- Fee model today: a basic listing is free (web form). Optional paid listing services, always labeled: fast-track review $19, Launch bundle $49, Featured 30 days $29 (see below). Your listing links to your own endpoint, so your x402 payTo stays your own wallet. Sell your own API through us (live): free to submit, 0% cut; buyers pay your registered payTo directly through your own 402s and we never hold funds.
- Submit by API, free (live; the one-call agent submit API, Sell-your-API gateway): POST https://api.youraitools.co/listing/v1/submit with JSON {name, url (or endpoint), payTo, category, manifest: {"type":"x402","resources":[{path, method, price}]} or {"type":"mcp"}} (optional description). No signup, no captcha. Returns 202 {id, status:"screening", slug, status_url, poll_after_seconds, gateway_url_when_approved}. Poll GET https://api.youraitools.co/listing/v1/submit/{id}; statuses: screening, pending_review, approved, rejected, suspended. Approved listings are served at https://api.youraitools.co/g/<slug>/... (x402) and https://api.youraitools.co/g/<slug>/mcp. Fees: free to submit, 0% cut. Buyers pay the builder's registered payTo directly through the builder's own 402s; we never hold funds. If a listing's 402 points to a different wallet, the call is blocked and the listing suspended. Screening: health check, prompt-injection scan, OFAC/scam screening of payTo, SSRF and duplicate checks; a builder's first listing is reviewed manually, later clean listings from the same payTo auto-approve. Limit: 5 submissions a day per payTo. OpenAPI: https://api.youraitools.co/listing/v1/submit/openapi.json · directory of approved listings (new, starts empty): https://api.youraitools.co/g/ · stats: https://api.youraitools.co/stats/v1/tools/gateway
- Gateway Featured (live, optional): a labeled Featured slot in the gateway directory (https://api.youraitools.co/g/), $29 for 30 days, at most 6 slots. x402: POST https://api.youraitools.co/listing/v1/featured {gateway_slug, contact_email}; card: POST https://api.youraitools.co/listing/v1/card/featured with the same body. Starts only after the listing passes our checks again (else full refund); never changes listing order. Refund and pause policy: https://youraitools.co/terms
- Submit for free (humans or agents with a browser): https://youraitools.co/submit (form; reviewed in our normal daily run).
- Add to the directory by API (paid review tiers): POST JSON {"tool_url","name","contact_email","category"[,"description","notes"]} to https://api.youraitools.co/listing/v1/fast-track ($19), /v1/launch ($49) or /v1/featured ($29). The body is validated before payment (invalid = 400, nothing charged); an empty body returns the 402 terms. Pay in USDC over x402 (v2 on Base, Polygon, Arbitrum One or Solana; v1 on Base), or by card: POST the same body to https://api.youraitools.co/listing/v1/card/<tier> and open the returned Stripe url. Status: GET https://api.youraitools.co/listing/v1/status/<ref>. Rejected = refunded. Payment never guarantees approval. Docs: https://api.youraitools.co/listing/ and https://api.youraitools.co/listing/openapi.json
- Public per-listing stats (live; measured since 2026-10-27): one unpaid check per day of each listing's example endpoint, never paid: status, last check, HTTP status, valid x402 yes/no, x402 version, latency, listed vs seen price, 7/30-day uptime. Shown on every listing page. All: https://api.youraitools.co/stats/v1/listings, one: https://api.youraitools.co/stats/v1/listings/<slug>, schema: https://api.youraitools.co/stats/v1/listings/schema.json. Statuses: up, down, stale, not_yet_measured, no_probe_target. Also per listing: a 30-day daily up/down series, down_since, x402 grade and score (from the free x402fix check of its 402), median latency and price history since tracking began. Status pages built from it: https://youraitools.co/status (by category: /status/<category>), https://youraitools.co/status/down-right-now (2+ failed daily checks in a row; checker-side TLS errors are never counted as down) and https://youraitools.co/status/leaderboard (last 7 days: uptime, then x402 grade, then score). Per listing (listings in a status wave): https://youraitools.co/tool/<slug> (review: price per call from its 402, x402 grade, how to pay), https://youraitools.co/status/<slug> (is it down: live status, 30-day daily timeline, outages, median latency, how to check it yourself) and https://youraitools.co/alternatives/<slug> (same-category x402 alternatives compared: price, grade, uptime, latency).
- Per-listing trust score (live since 2026-11-03, formula 1.0-median30): the `trust` object in https://api.youraitools.co/stats/v1/listings/<slug>, 0-100 from the last 30 days of our unpaid daily checks: uptime (40), valid x402 payment request (40), price matches the listed price (10), median response time of up checks (10); parts that can't apply are left out and the score is rescaled. Bands: strong 90-100, fair 70-89, weak under 70. Appears only after 7+ days and 6+ checks (status: scored, insufficient_data, stale, not_applicable). Payment, Featured and Sponsored never change it; not an endorsement. Shown on listing pages.
- Outbound click counts (live, counting since 2026-10-30T17:55Z): listing pages count clicks on a listing's Visit link; public feed https://api.youraitools.co/stats/v1/clicks (per listing: https://api.youraitools.co/stats/v1/clicks/{slug}, schema https://api.youraitools.co/stats/v1/clicks/schema.json). https://youraitools.co/tools has an opt-in "Most used" sort by these counts; A to Z stays the default.
- Public numbers today: prices from our own 402 probes (https://youraitools.co/data/x402-api-prices), the full dataset (https://youraitools.co/listings.json, CC BY 4.0), public stats for our own tools and services, measured by us since Oct 23, 2026 (status, uptime, calls, success rate, latency: https://api.youraitools.co/stats/v1/tools, one tool: /stats/v1/tools/<slug>, schema: https://api.youraitools.co/stats/v1/schema.json), and aggregate weekly signup/submission counts by channel (https://api.youraitools.co/listing/v1/growth).
- MCP Hub (live): one remote MCP server for every YourAITools tool: https://api.youraitools.co/mcp/hub (streamable HTTP; 44 tools over 24 services: OFAC screening, token and counterparty safety, prompt-injection and leak scans, web-to-Markdown, perp and TA data, an x402 endpoint doctor, tool-list audits (ToolFit) and task-to-tool routing (ToolRoute), currency conversion on ECB reference rates (FXRate), crypto price snapshots (CryptoPrice) and more). No account or signup; 38 of the 44 tools have a free tier. Paid calls: prepaid credits (card or USDC, https://api.youraitools.co/credits/) or x402 in USDC on Base, Polygon, Arbitrum One or Solana, at the same price as calling the tool directly (no hub fee). Failed tool calls aren't charged: credits are refunded automatically, and x402 payments settle only after a successful response. Claude Code: `claude mcp add --transport http youraitools https://api.youraitools.co/mcp/hub`. Docs: https://api.youraitools.co/mcp/ · README: https://api.youraitools.co/mcp/hub/README.md · server.json: https://api.youraitools.co/mcp/hub/server.json · stats: https://api.youraitools.co/stats/v1/tools/mcp-hub · Official MCP Registry: co.youraitools/hub (https://registry.modelcontextprotocol.io/v0/servers?search=co.youraitools/hub). Trading, perp and crypto price tools: not financial advice; past performance does not guarantee future results. Token safety tools: SAFE is not a guarantee and not financial advice. OFAC/PayGuard: informational screening, not legal advice. FXRate: ECB reference rates for information only, not for trading.
- MCP Hub tools and prices (all 44, checked 2026-10-24 ~8:15 PM ET): AgentGate: check_agent (check $0.005); WebRead: read_url (read $0.002 / lite $0.001); InjectScan: scan_text (scan $0.003), scan_url (scan $0.003), scan_tools (scan $0.003); DomainCheck: check_domain (domain $0.002), check_email (email $0.001); PayGuard: screen_address (address $0.001), screen_batch (batch $0.01); PkgGuard: scan_dependencies (scan $0.003), check_package (package $0.001); StackDetect: detect_stack (detect $0.003); SignCheck: check_signature (lite $0.005 / check $0.015); TokenVerdict: check_token (lite $0.005 / verdict $0.01 / quick $0.015 / deep $0.05); CounterpartyCheck: check_counterparty (lite $0.005 / quick $0.015 / full $0.05); x402Fix: check_x402_endpoint (lite $0.005 / check $0.02 / site $0.05); SolVerdict: check_solana_token (lite $0.005 / check $0.02); AgentReady: audit_website (lite $0.005 / audit $0.03); LeakGuard: scan_for_leaks (lite $0.005 / scan $0.02); PerpRadar: perp_positioning (lite $0.005 / full $0.03), perp_funding_scan (scan $0.02, no free tier); TASignal: ta_bias (lite $0.005), ta_risk (risk $0.02, no free tier), ta_backtest (backtest $0.05, no free tier); SmartPerps: smart_money_bias (lite $0.003 / coin $0.02), smart_money_scan (scan $0.03, no free tier), hyperliquid_wallet (wallet $0.01, no free tier); ToolPick: find_paid_api (lite $0.003 / pick $0.01 / market $0.02); PerpCheck: check_perp_order (lite $0.003 / full $0.01); ToolFit: audit_tools (full $0.01 / lite $0.003), diff_tools (diff $0.002), check_mcp_server (check $0.005), watch_mcp_server (watch $0.25 / watch6h $0.60, no free tier), watch_status (free), watch_cancel (free); ToolRoute: register_tools (free), route_tools (route $0.001); FXRate: convert_currency (convert $0.001), fx_rates (rates $0.001), fx_history (history $0.002); CryptoPrice: crypto_price (price $0.001), crypto_movers (movers $0.002); Credits: credits_quote (free), credits_balance (free). Full table: https://youraitools.co/built-by-us#mcp-tools
- Ordering: lists are A to Z. Paid placements are labeled Featured or Sponsored and never change the order or verification.
- Machine-readable: https://youraitools.co/.well-known/agents.json · https://youraitools.co/for-agents · contact hello@youraitools.co

## Key pages
- [Best x402 alternatives](https://youraitools.co/alternatives/x402): hub of every /alternatives page whose slug names x402 (plus related), grouped by category from our daily unpaid check
- [Home](https://youraitools.co/): overview, categories and highlighted tools
- [All tools](https://youraitools.co/tools): every listing, with search and category/network filters
- [About & how we verify](https://youraitools.co/about): sources, verification rules, paid-placement disclosure
- [Submit a tool (free)](https://youraitools.co/submit): free basic listing for AI tools/APIs/agents that accept crypto
- [Grok Bot templates: free skills & team setups](https://youraitools.co/grok-bot-templates): 20 open-source GitHub projects for Grok Bot, sorted by GitHub stars as of Oct 23, 2026, with license and last push; our own one-line summaries; independent list, not affiliated with or endorsed by Grok Bot, xAI or SpaceX
- [For agents](https://youraitools.co/for-agents): list your x402/MCP tool in one API call (free submit API, 0% cut; or the free /submit form or paid review tiers)
- [Try it live](https://youraitools.co/try): run free previews of our 19 tools in the browser, no wallet or signup
- [Request board](https://youraitools.co/requests): post "I need a tool that does X" for free and upvote requests (moderated)
- [Get featured or fast-tracked](https://youraitools.co/featured): free listing stays the default; paid options in USDC via x402 on Base, Polygon, Arbitrum One or Solana at https://api.youraitools.co/listing/ : fast-track review $19 (within 24h), Launch $49 (24h review + 30 days Featured + one newsletter line once we have subscribers), Featured $29 (48h review + 30 days). Reviewed for legitimacy and fit; payment doesn't guarantee approval; rejected = refunded within 3 business days; always labeled "Featured". Featured policy (all Featured): rejected after review = full refund; directory Featured runs a fixed 30 days from approval and is never hidden, paused or ended for failed health checks (only a manual takedown for scam, malware or illegal content, no refund); breaking our terms = no refund; removal due to our error or our shutdown = prorated refund. Gateway Featured only (slots at https://api.youraitools.co/g/): post-payment re-check fails = full refund; a gateway Featured listing hidden for failing health checks has its 30-day clock paused until it recovers, and if it is still failing after 7 days the slot ends with no refund (https://youraitools.co/terms)
- Tool pages: https://youraitools.co/tool/<slug> (one per listing)
- [Advertise](https://youraitools.co/advertise): labeled sponsor slots, homepage $99/mo, category $49/mo, paid in USDC on Base or Solana
- [x402 endpoint checker (free)](https://youraitools.co/verify-endpoint): free, unpaid check of any https x402 URL in the browser: does it return HTTP 402, grade, score, status, x402 v1/v2, networks and price (no payment is sent; about 10 checks a minute per IP). The browser also tries to read the full payment terms directly (scheme, network, asset, amount in USDC, payTo, resource, description; CORS may block this), and a client-side parser reads a pasted 402 JSON body or PAYMENT-REQUIRED header. Same check for agents: GET https://api.youraitools.co/x402fix/v1/preview?url=<url>. Full fix list via the paid x402fix /v1/lite ($0.005) or /v1/check ($0.02), USDC via x402. Verified endpoint check — $19 USDC one-off; real settlement test and dated report (email hello@youraitools.co with your HTTPS URL, then pay USDC on Base or Solana; manually fulfilled)
- [Data](https://youraitools.co/data): the open CC BY 4.0 dataset explained (files, fields, update schedule, how to cite): listings.json, the live stats API, monthly summary.csv/stats.json and the status feeds; plus a Pro updates feed of our own change history ($9/mo USDC)
- [State of x402: November 2026](https://youraitools.co/reports/state-of-x402-2026-11): monthly data report from our daily unpaid checks (data as of 2026-11-06): 372 listings, 348 checked, 97.4% online, 95.7% valid x402 402, $0.01 median price per call, 462 ms median response; downloads summary.csv and stats.json (CC BY 4.0)
- [Weekly x402 outage note, week 44 2026](https://youraitools.co/status/reports/2026-w44): aggregate outages by category (2+ failed daily checks in a row; checks on hold and checker-side HTTP 525 excluded)
- [x402 market snapshot](https://youraitools.co/data/x402-market-snapshot): dated, sourced x402 market figures (x402 List CC BY 4.0, Pennyforge, OFAC SDN, our listings), updated 2026-10-21; JSON at https://youraitools.co/x402-market-snapshot-2026-10-21.json
- [x402 API prices per call](https://youraitools.co/data/x402-api-prices): price per call for 262 x402 APIs from our own unpaid 402 probes (2026-10-22): median starting price $0.005, price bands, lowest / median / highest by category; CC BY 4.0
- [Support](https://youraitools.co/support): tip the directory in USDC, ETH or any token (EVM chains or Solana)
- [Built by us](https://youraitools.co/built-by-us): 24 paid x402 APIs (USDC on Base, Polygon and Arbitrum One for all, and Solana for 20 of them; x402 v2, with v1 also on Base for most) plus the $19 x402 Proxy Template, built and operated by the youraitools.co team (disclosed, not part of rankings); source code at https://agentgate-source.pages.dev/; prepaid credits for all 24 APIs (pay once over x402, call with a Bearer key): https://api.youraitools.co/credits/
- [Transcribe](https://youraitools.co/built-by-us#transcribe) (built by us): speech-to-text API for agents, MP3, WAV, M4A or OGG/Opus up to 30 minutes (raw body, audio_url or audio_base64) to transcript, language, timestamped segments and SRT/VTT; task=translate returns English. $0.003 per started audio minute (min 1), x402 USDC on Base, Polygon, Arbitrum One or Solana, or prepaid credits. No free tier and no MCP server. Machine transcription can contain errors. Docs: https://api.youraitools.co/transcribe/
- [switch402](https://youraitools.co/built-by-us#switch402) (built by us, separate site): pay-per-call scrape router. One x402 endpoint turns a public page into markdown, routes to a healthy scrape provider and fails over; charged only on success. $0.008 USDC per successful call on Base ($0.003 per call on /v1/scrape/lite). Also PDF to text at /v1/pdf, $0.008 per call (up to 50 pages, 10 MB), charged only when text comes back. Also /v1/map (site map, $0.001), /v1/metadata (page metadata, $0.001), /v1/screenshot ($0.008; /v1/screenshot/full $0.012) and /v1/search (web search, $0.008), all USDC on Base, charged only on success. Optional switch402 prepaid credits (its own, separate from ours): $5, $20 or $50 packs or a $10 30-day plan via POST /v1/credits/buy/{5|20|50|monthly}, USDC on Base, returning an API key. Not on our MCP hub and not payable with our prepaid credits. Site: https://switch402.com/ · Docs: https://switch402.com/docs · Checked 2026-11-03
- [x402 service](https://youraitools.co/x402-service): we x402-enable your existing API in 48 hours so it accepts USDC on Base, Polygon, Arbitrum One and Solana (you pick the chains). Starter $150, Standard $300, Pro $500, payable in USDC on any of those four chains. Or do it yourself with the x402 Proxy Template ($19 USDC on Base, paid over x402: https://api.youraitools.co/x402-template/). No client deployments yet; our own 19 live x402 APIs are the proof. Contact: hello@youraitools.co
- [New this week](https://youraitools.co/new) and [RSS](https://youraitools.co/feed.xml)

## Guides
- [What is x402?](https://youraitools.co/guides/what-is-x402)
- [How to accept USDC for your API](https://youraitools.co/guides/accept-usdc-for-your-api)
- [AI agent payment protocols compared (x402, MPP, AP2, ACP, L402)](https://youraitools.co/guides/ai-agent-payment-protocols-compared)
- [x402 vs API keys for AI agents](https://youraitools.co/guides/x402-vs-api-keys-for-ai-agents): point-by-point comparison (access, billing, spending control, leaked credentials, refunds) with per-call prices from our 402 probes and APIs that offer both
- [Pay-per-call AI APIs](https://youraitools.co/guides/pay-per-call-ai-apis)
- [How to pay for an API with USDC via x402 (step by step)](https://youraitools.co/guides/pay-for-api-with-usdc-x402)
- [Best x402 APIs for AI agents, by task](https://youraitools.co/guides/best-x402-apis-for-ai-agents)
- [Crypto wallet sanctions screening APIs that accept x402, compared](https://youraitools.co/guides/crypto-wallet-sanctions-screening-api-x402)
- [Paid MCP servers that accept USDC (x402 pay-per-call MCP tools)](https://youraitools.co/guides/paid-mcp-servers-x402)
- [Where to list your x402 API: Agentic.Market, x402scan, 402 Index, Agent402, x402dash, x402-trust, PayAPI Market](https://youraitools.co/guides/where-to-list-x402-api)
- [x402 facilitators: what they do, how to choose, and a list](https://youraitools.co/guides/x402-facilitators): verify and settle explained, testnet vs production vs self-hosted, and production facilitators listed in the official x402 docs (checked 2026-11-02)
- [OpenRouter 429 and 402 errors: what they mean and how to fix them](https://youraitools.co/guides/openrouter-429-402-errors): rate limits vs credit errors, limit_source, Retry-After, from OpenRouter's docs (checked 2026-11-02)
- [Pay-per-call web scraper API: URL to Markdown (WebRead, built by us)](https://youraitools.co/guides/pay-per-call-web-scraper-api)
- [x402 agent verification (AgentGate, built by us)](https://youraitools.co/guides/x402-agent-verification)
- [Prompt injection scanner API for AI agents (InjectScan, built by us)](https://youraitools.co/guides/prompt-injection-scanner-api)
- [Domain and email verification API for AI agents (DomainCheck, built by us)](https://youraitools.co/guides/domain-email-verification-api)
- [OFAC sanctions check API for crypto wallets (PayGuard, built by us)](https://youraitools.co/guides/ofac-sanctions-check-api-crypto-wallets)
- [PayGuard product page (built by us)](https://youraitools.co/payguard): free OFAC SDN address preview (try box), curl + 402 response, MCP install for Claude Desktop, Claude Code and Cursor, $0.001 per address / $0.01 per batch of 50 (checked via our 402 probe on 2026-10-23). Informational screening, not legal advice
- [Check npm dependencies before an AI agent installs them (PkgGuard, built by us)](https://youraitools.co/guides/check-npm-dependencies-before-ai-agent-installs)
- [Website tech stack detection API: a pay-per-call BuiltWith / Wappalyzer alternative (StackDetect, built by us)](https://youraitools.co/guides/website-tech-stack-detection-api-x402)
- [Base token honeypot checker API for agents that handle tokens (TokenVerdict, built by us)](https://youraitools.co/guides/base-token-honeypot-checker-api)
- [Is it safe to sign? Pre-sign check API for AI agent wallets (SignCheck, built by us)](https://youraitools.co/guides/pre-sign-check-api-ai-agents)
- [Check an x402 payTo before your agent pays (CounterpartyCheck, built by us)](https://youraitools.co/guides/check-x402-payto-before-agent-pays): ok / caution / block for an EVM or Solana address before paying (OFAC SDN and scam lists, token contracts, wrong chain); free preview, from $0.005 via x402. A safety check only: "ok" means no known risk signal, not that the counterparty is trustworthy
- [Solana token safety check API for agents that handle SPL tokens (SolVerdict, built by us)](https://youraitools.co/guides/solana-token-safety-check-api-x402): safety check for any Solana SPL or Token-2022 mint before an agent or app interacts with it: mint and freeze authority, Token-2022 extensions, metadata authority, liquidity, pump.fun curve, holders and age; SAFE / CAUTION / DANGER with a 0-100 score; $0.005 lite, $0.02 full via x402 (Base, Solana, Polygon, Arbitrum); free preview, card and MCP. SAFE is not a guarantee and not financial advice
- [Why your x402 endpoint isn't in x402 directories and indexers (and how to fix it) (x402fix, built by us)](https://youraitools.co/guides/x402-endpoint-not-in-bazaar): common reasons a paid x402 route isn't indexed (HEAD not returning 402, no CORS preflight, PAYMENT-REQUIRED not exposed, more than 5 tags, no discovery declaration, no settled payment) and the fixes; x402fix grades a route A to F with a fix list without paying: $0.005 lite, $0.02 check (payment-validation verdict + generated discovery-extension block), $0.05 site (up to 8 routes); free preview and MCP
- [Is your site blocking GPTBot and ClaudeBot? Check llms.txt and robots.txt for AI agents (AgentReady, built by us)](https://youraitools.co/guides/check-gptbot-claudebot-llms-txt-robots-txt): how to check robots.txt rules for AI agent, search and training bots, bot challenges, raw-HTML content, llms.txt, sitemap, JSON-LD and agent interfaces; AgentReady scores a site 0-100 (A-F) with fixes: free preview and report page, $0.005 lite, $0.03 full audit via x402
- [Where's funding cheapest to go long BTC right now? How to compare perp funding across venues (PerpRadar, built by us)](https://youraitools.co/guides/perp-funding-rates-compare-venues): how perp funding works and how to compare it fairly (8h %, APR, OI weighting, spread, history), with a dated free-preview snapshot; PerpRadar covers Hyperliquid, dYdX v4, Paradex and Aevo: $0.002 funding, $0.005 lite, $0.03 full, $0.02 scan via x402. Not financial advice. Past performance does not guarantee future results.
- [Backtest a moving-average cross for your trading agent for 5 cents (TASignal, built by us)](https://youraitools.co/guides/backtest-moving-average-cross-trading-agent): how an SMA/EMA cross backtest works and how to read it, with an illustrative BTC 4h run; TASignal indicators $0.005, risk sizing $0.02, backtests $0.05 via x402. Not financial advice. Past performance does not guarantee future results.
- [Redact seed phrases and API keys before your AI agent sends them to an LLM (LeakGuard, built by us)](https://youraitools.co/guides/redact-seed-phrases-api-keys-before-llm): where to put an outbound secret check (LLM calls, tool calls, logs, webhooks), what to look for (seed phrases, wallet private keys, API secrets, PII), and LeakGuard: free preview and MCP, $0.005 lite with redacted text, $0.02 scan with JSON payloads and a live, fail-closed check of whether leaked wallets hold funds, plus an offline npm library.
- [How to read Hyperliquid smart-money positioning from an agent (SmartPerps, built by us)](https://youraitools.co/guides/hyperliquid-smart-money-positioning-api): what a rules-based top-trader cohort is (120 Hyperliquid accounts with the highest 30-day PnL), how to read long/short counts vs notional, net bias, flows, liquidation clusters and snapshot freshness, with a dated free-preview read; SmartPerps: free preview and MCP, $0.003 lite, $0.02 coin, $0.03 scan, $0.01 wallet via x402. Read-only. Not financial advice. Past performance does not guarantee future results.
- [How an AI agent can find and live-check a paid x402 API for a task (ToolPick, built by us)](https://youraitools.co/guides/find-paid-x402-api-for-agent-task): what to check before an agent pays an x402 API (task fit, live 402, live vs listed price, network, payTo, spend cap), what a live 402 check proves and doesn't, and a field-by-field look at the free preview; ToolPick: free preview and MCP, $0.003 lite, $0.01 pick (live-checked best pick), $0.02 market via x402. Listings are self-described by sellers; results are not endorsements.
- [Will Hyperliquid reject this order? A pre-trade order check for trading agents (PerpCheck, built by us)](https://youraitools.co/guides/hyperliquid-pre-trade-order-check-api): the Hyperliquid order rules worth checking before an agent sends an order (size decimals, price tick, $10 minimum, max leverage, isolated-only, open-interest cap, delisted coins, reduce-only, far-from-mark limits), with dated free-preview examples; PerpCheck returns OK / CAUTION / REJECT_LIKELY with a fix value per issue: free preview, free remote MCP (https://api.youraitools.co/perpcheck/mcp, tool check_perp_order, 30 calls/day), $0.003 lite, $0.01 full via x402 (checked via our 402 probe on 2026-10-23). Read-only: never places or signs orders. Not financial advice; the exchange decides whether an order is accepted. Not financial advice. Past performance does not guarantee future results.
- [Audit your agent's tool list before it runs: token cost, schema errors and MCP server checks (ToolFit, built by us)](https://youraitools.co/guides/audit-ai-agent-tool-list-mcp-server-check): token cost per tool, provider schema errors (OpenAI, Anthropic, Gemini, Bedrock, MCP) with fixed definitions, confusable tools, a poisoning lint, pin-and-diff of tool changes, and MCPCheck, a preflight of any public remote MCP server; $0.003 lite, $0.01 full, $0.002 diff, $0.005 check (x402 USDC on Base, Polygon or Arbitrum One, or prepaid credits); free remote MCP https://api.youraitools.co/toolfit/mcp with 20 audit or diff calls and 10 checks a day; failed tool calls aren't charged; docs https://api.youraitools.co/toolfit/
- [Give the model 5 tools, not 50: route each agent task to the tools it needs (ToolRoute, built by us)](https://youraitools.co/guides/route-agent-tasks-to-fewer-tools): register a tool list once (free), then get a ranked shortlist of 3-12 tools per task with definitions ready to inject (OpenAI, Anthropic, Gemini or MCP form); BM25, no LLM; $0.001 per route (x402 USDC on Base, Polygon or Arbitrum One, or prepaid credits); free remote MCP https://api.youraitools.co/toolroute/mcp with 200 routes a day; failed tool calls aren't charged; docs https://api.youraitools.co/toolroute/
- [Currency converter API for AI agents on ECB reference rates (FXRate, built by us)](https://youraitools.co/guides/currency-converter-api-ecb-rates): Convert 31 currencies, get rate tables and daily history on ECB reference rates. 30 free MCP calls a day, then $0.001 per call in USDC. Information only.
- [Crypto price API for AI agents: price snapshots and 24h movers (CryptoPrice, built by us)](https://youraitools.co/guides/crypto-price-api-for-ai-agents): USD price snapshots for up to 20 coins and the top 24h movers. 30 free MCP calls a day, then $0.001 per call in USDC. Not financial advice.
- [Speech-to-text API for AI agents, pay per audio minute (Transcribe, built by us)](https://youraitools.co/guides/speech-to-text-api-for-ai-agents): MP3, WAV, M4A or OGG/Opus to transcript, language, timestamps and SRT/VTT. $0.003 per started audio minute in USDC, quoted before you pay. No account.
- [Build a read-only crypto trading-research agent with LangGraph or Mastra and x402 MCP tools (built by us)](https://youraitools.co/guides/langgraph-mastra-read-only-trading-research-agent-mcp): a read-only research agent (never trades, holds funds or touches keys) that loads six remote MCP servers (PerpRadar, TASignal, SmartPerps, TokenVerdict, SolVerdict, PayGuard) with langchain-mcp-adapters MultiServerMCPClient + create_react_agent, or Mastra MCPClient + Agent; free MCP preview tier, smoke test with no LLM key or wallet, MIT example code at https://agentgate-source.pages.dev/agentgate-examples/ . TokenVerdict/SolVerdict are safety checks only: SAFE is not a guarantee and not financial advice. Not financial advice. Past performance does not guarantee future results.
- [Add x402 trust checks to OpenAI Agents SDK and Vercel AI SDK agents (built by us)](https://youraitools.co/guides/x402-trust-checks-openai-agents-sdk-vercel-ai-sdk): tested Python and JavaScript examples that connect nine remote MCP trust checks; free tier, full reports pay per call via x402
- [Prepaid credits for x402 agent APIs: pay once, call with a Bearer key (built by us)](https://youraitools.co/guides/prepaid-credits-x402-agent-apis): one x402 payment in USDC on Base, Polygon, Arbitrum One or Solana ($1, or $5 for $5.50 of credit) buys an API key for all 19 of our tools; each call is debited at its normal price. Credits are prepaid usage only: not a token or investment, no cash value, not refundable.

## Comparisons
- [Best x402 APIs](https://youraitools.co/best/x402-apis): x402 APIs with a published price per call, A to Z; paid placements never change the order
- [Best by category](https://youraitools.co/best): /best/<category-slug> comparison tables
- Networks: [Base](https://youraitools.co/network/base), [Solana](https://youraitools.co/network/solana), [Polygon](https://youraitools.co/network/polygon), [Arbitrum](https://youraitools.co/network/arbitrum)
- [All comparisons](https://youraitools.co/compare): vendor-vs-vendor tables from official pages, dated, A to Z
- [Ledger vs Trezor](https://youraitools.co/compare/ledger-vs-trezor): every current hardware wallet model, official US prices and specs (checked 2026-10-22)
- [Crypto payment gateways compared](https://youraitools.co/compare/crypto-payment-gateways): BitPay, BTCPay Server, Coinbase Business, CoinGate, NOWPayments, Stripe stablecoins; fees, cheapest published processing fee table, altcoins; where x402 fits
- [AI agent builders compared](https://youraitools.co/compare/ai-agent-builders): Dify, Lindy, Make, n8n, Relevance AI, Zapier; pricing and x402/crypto support (none native as of 2026-11-06)
- [AI voice agent platforms compared](https://youraitools.co/compare/ai-voice-agent-platforms): Bland AI, Cartesia, ElevenLabs, Retell AI, Synthflow, Vapi; per-minute pricing
- [OpenRouter vs Ollama](https://youraitools.co/compare/openrouter-vs-ollama), [OpenRouter vs LiteLLM](https://youraitools.co/compare/openrouter-vs-litellm), [Groq vs OpenRouter](https://youraitools.co/compare/groq-vs-openrouter): LLM API and router pricing from official pages (checked 2026-11-01)
- [CoinGecko vs CoinMarketCap API](https://youraitools.co/compare/coingecko-vs-coinmarketcap), [Telnyx vs Twilio](https://youraitools.co/compare/telnyx-vs-twilio), [Tavily vs Perplexity](https://youraitools.co/compare/tavily-vs-perplexity), [Exa vs Parallel](https://youraitools.co/compare/exa-vs-parallel): plans and per-call prices from official pages plus our daily x402 checks (checked 2026-11-01)
- [Vapi vs Retell AI](https://youraitools.co/compare/vapi-vs-retell), [Otter vs Fireflies](https://youraitools.co/compare/otter-vs-fireflies), [Granola vs Otter](https://youraitools.co/compare/granola-vs-otter), [Fathom vs Fireflies](https://youraitools.co/compare/fathom-vs-fireflies): voice agent and AI note taker pricing (checked 2026-11-01)
- [Bland AI vs Vapi](https://youraitools.co/compare/bland-ai-vs-vapi), [Cartesia vs ElevenLabs](https://youraitools.co/compare/cartesia-vs-elevenlabs): per-minute and plan pricing from official pages (checked 2026-11-06)
- [ASN & IP lookup APIs](https://youraitools.co/compare/asn-ip-lookup-apis): ip402.xyz, Underscoredone, NetIntel, how.is — listed USDC prices and daily unpaid x402 checks
- [Best x402 USDC payments APIs](https://youraitools.co/best/x402-usdc-payments): send/receive USDC programmatically; payment listings that accept USDC; link to gateway fee table for checkouts
- [Best AI voice agents](https://youraitools.co/best/voice-agents), [Best AI note takers](https://youraitools.co/best/note-takers): card/subscription category hubs with dated official pricing
- [Vapi vs ElevenLabs](https://youraitools.co/compare/vapi-vs-elevenlabs), [Granola vs Fireflies](https://youraitools.co/compare/granola-vs-fireflies), [Tavily vs Exa](https://youraitools.co/compare/tavily-vs-exa): official-page pricing compares (checked 2026-11-06)
- [ElevenLabs alternatives](https://youraitools.co/alternatives/elevenlabs), [Vapi alternatives](https://youraitools.co/alternatives/vapi), [Bland AI alternatives](https://youraitools.co/alternatives/bland-ai): same-category card/subscription alternatives
- [HTTP 402 status code explained](https://youraitools.co/guides/http-402-status-code): what Payment Required means and how x402 uses it
- [x402 for AI agents](https://youraitools.co/guides/x402-for-ai-agents), [USDC micropayments](https://youraitools.co/guides/usdc-micropayments): how agents pay per call in USDC; per-call price and network stats from our x402 listings (2026-11-06)
- [Apify vs Firecrawl](https://youraitools.co/compare/apify-vs-firecrawl), [Nansen vs Arkham](https://youraitools.co/compare/nansen-vs-arkham), [Venice AI vs OpenRouter](https://youraitools.co/compare/venice-ai-vs-openrouter): official-page pricing compares (checked 2026-11-06)
- [Best text-to-speech APIs](https://youraitools.co/best/tts), [Best speech-to-text APIs](https://youraitools.co/best/stt), [Best browser agents](https://youraitools.co/best/browser-agents), [Best AI meeting notes apps](https://youraitools.co/best/meeting-notes): hubs with dated official pricing (2026-11-06)
- [Firecrawl alternatives](https://youraitools.co/alternatives/firecrawl), [Retell AI alternatives](https://youraitools.co/alternatives/retell-ai), [Otter alternatives](https://youraitools.co/alternatives/otter-ai), [Granola alternatives](https://youraitools.co/alternatives/granola)
- [What is MCP?](https://youraitools.co/guides/what-is-mcp), [Agent payments explained](https://youraitools.co/guides/agent-payments): Model Context Protocol basics and how AI agents pay (API keys, x402, stablecoin checkout) (2026-11-06)
- [Firecrawl vs Browserbase](https://youraitools.co/compare/firecrawl-vs-browserbase), [Speechify vs ElevenLabs](https://youraitools.co/compare/speechify-vs-elevenlabs), [Deepgram vs AssemblyAI](https://youraitools.co/compare/deepgram-vs-assemblyai), [Retell AI vs Bland AI](https://youraitools.co/compare/retell-ai-vs-bland-ai), [Browser Use vs Playwright](https://youraitools.co/compare/browser-use-vs-playwright): official-page compares (checked 2026-11-06)
- [Best web scraping APIs](https://youraitools.co/best/web-scrapers), [Best crypto analytics APIs](https://youraitools.co/best/crypto-analytics), [Best AI voice tools](https://youraitools.co/best/ai-voice), [Best LLM routers & AI gateways](https://youraitools.co/best/llm-routers): hubs with dated official pricing (2026-11-06)
- [Nansen alternatives](https://youraitools.co/alternatives/nansen), [Speechify alternatives](https://youraitools.co/alternatives/speechify), [Deepgram alternatives](https://youraitools.co/alternatives/deepgram), [Krisp alternatives](https://youraitools.co/alternatives/krisp), [Cartesia alternatives](https://youraitools.co/alternatives/cartesia)

## Pricing explained (official pages, dated)
- [OpenRouter pricing](https://youraitools.co/pricing/openrouter), [Telnyx pricing](https://youraitools.co/pricing/telnyx), [Apify pricing](https://youraitools.co/pricing/apify), [Tavily pricing](https://youraitools.co/pricing/tavily), [Exa pricing](https://youraitools.co/pricing/exa), [ElevenLabs pricing](https://youraitools.co/pricing/elevenlabs), [Deepgram pricing](https://youraitools.co/pricing/deepgram), [Vapi pricing](https://youraitools.co/pricing/vapi), [Bland AI pricing](https://youraitools.co/pricing/bland-ai), [Krisp pricing](https://youraitools.co/pricing/krisp), [Cartesia pricing](https://youraitools.co/pricing/cartesia), [Fireflies pricing](https://youraitools.co/pricing/fireflies), [Otter pricing](https://youraitools.co/pricing/otter-ai), [Granola pricing](https://youraitools.co/pricing/granola), [Speechify pricing](https://youraitools.co/pricing/speechify), [Retell AI pricing](https://youraitools.co/pricing/retell-ai), [Venice AI pricing](https://youraitools.co/pricing/venice-ai), [Browserbase pricing](https://youraitools.co/pricing/browserbase), [CoinGecko API pricing](https://youraitools.co/pricing/coingecko), [Nansen API pricing](https://youraitools.co/pricing/nansen), [Stripe pricing (cards & stablecoins)](https://youraitools.co/pricing/stripe), [Browser Use pricing](https://youraitools.co/pricing/browser-use), [Arkham API pricing](https://youraitools.co/pricing/arkham), [Groq pricing](https://youraitools.co/pricing/groq), [Together AI pricing](https://youraitools.co/pricing/together-ai), [Replicate pricing](https://youraitools.co/pricing/replicate), [AssemblyAI pricing](https://youraitools.co/pricing/assemblyai), [Fathom pricing](https://youraitools.co/pricing/fathom): each provider's published prices quoted from its own pages (checked 2026-11-06 where noted), plus our daily x402 check where the provider runs an x402 route. Confirm with the provider before you buy.

## Categories
- [Agent Marketplaces & Directories](https://youraitools.co/category/marketplaces) (38): Agent marketplaces, x402 directories and multi-API hubs where AI agents find paid services and pay per call in USDC.
- [Trust, Security & Verification](https://youraitools.co/category/trust-security) (51): Trust scores, endpoint verification, sanctions screening and audit tools that AI agents pay for in USDC via x402.
- [Agent Payments & Facilitators](https://youraitools.co/category/payments) (23): x402 facilitators, agent wallets and payment rails for accepting or spending USDC on Base and Solana.
- [Other Data APIs](https://youraitools.co/category/data-apis) (53): Specialist pay-per-call data APIs for AI agents (sports, events, research, regional data), paid in USDC with x402.
- [Crypto & Onchain Data](https://youraitools.co/category/crypto-data) (56): Onchain analytics, token prices and blockchain data APIs that accept x402 USDC payments per call.
- [Web Search & Scraping](https://youraitools.co/category/search-web) (36): Web search, scraping, browser automation and URL-to-markdown APIs for AI agents, paid per call in USDC.
- [Developer Tools & Infrastructure](https://youraitools.co/category/dev-infra) (38): Developer infrastructure for AI agents (sandboxes, storage, RPC, hosting) paid per call in USDC via x402.
- [Financial & Market Data](https://youraitools.co/category/finance-data) (33): Stock, macro, FX and company fundamentals APIs that AI agents pay for per call in USDC.
- [Commerce & Real-World Actions](https://youraitools.co/category/commerce) (20): Real-world actions for AI agents (gift cards, travel, tickets, phone, email) paid in USDC and crypto.
- [AI Models & Inference](https://youraitools.co/category/ai-inference) (17): LLM inference APIs and model gateways that accept USDC or crypto payments, with no API key required.
- [Business, Company & Lead Data](https://youraitools.co/category/business-data) (28): Company, people, lead and jobs data APIs for AI agents, paid per request in USDC.
- [Social Media Data](https://youraitools.co/category/social-data) (14): X/Twitter, Reddit, TikTok and YouTube data APIs for AI agents, paid per call in USDC.
- [Image, Video & Voice Generation](https://youraitools.co/category/media-generation) (11): AI image, video and voice generation APIs paid per generation in USDC via x402.
- [Protocols & SDKs](https://youraitools.co/category/protocols) (4): Open protocols and SDKs for crypto payments between AI agents: x402, A2A x402 and x402-mcp.

## General AI tools (paid by card or subscription, not crypto)
- [Voice & Voice Agents](https://youraitools.co/category/voice-agents) (10): text-to-speech, speech-to-text and voice/phone agent platforms; pricing from official pages, dated
- [AI Note Takers](https://youraitools.co/category/note-takers) (12): meeting recorders, transcription and summaries; pricing from official pages, dated
- [AI Website Builders](https://youraitools.co/category/website-builders) (9): website builders with AI site generation; pricing from official pages, dated

## Affiliate disclosure
Some outbound links are affiliate or referral links (currently Mekler AI and NOWPayments). They use rel="sponsored", every page with one shows a disclosure, and they never change listing order or verification. Details: https://youraitools.co/about#how-we-make-money

## Machine-readable data
- [listings.json](https://youraitools.co/listings.json): all listings as JSON (slug, name, url, page_url, description, category, protocol, networks, tokens, price, example endpoint, sources, verified date, featured flag), plus a separate built_by_us section for our own disclosed tools
- [llms-full.txt](https://youraitools.co/llms-full.txt): every listing in plain text, plus our own disclosed tools
- [sitemap.xml](https://youraitools.co/sitemap.xml)
- [feed.xml (RSS)](https://youraitools.co/feed.xml)
- [status/feed.xml (RSS)](https://youraitools.co/status/feed.xml) and [status/feed.json (JSON Feed)](https://youraitools.co/status/feed.json): x402 API outages (2+ failed daily checks in a row) and recoveries; one RSS feed per category at /status/<category>/feed.xml; snapshot refreshed on each site publish
- [summary.csv](https://youraitools.co/reports/state-of-x402-2026-11/summary.csv) and [stats.json](https://youraitools.co/reports/state-of-x402-2026-11/stats.json): aggregates behind State of x402: November 2026 (CC BY 4.0)
- Status badge per listing (SVG, live): https://api.youraitools.co/stats/v1/badge/<slug>.svg (availability from our daily checks; embed code on each /status/<slug> page)

## Community
- [YourAITools Community](https://community.youraitools.co): the hangout for builders of AI tools and agents that get paid in crypto. Channels: Show Your Tool (launches and updates), x402 Help (building and debugging x402 payments), Requests (tools people want built) and Claimed Owners (teams whose listing is claimed). Free to join.

## Contact
- hello@youraitools.co (corrections, removals, payment questions, advertising)
- Questions and discussion: https://community.youraitools.co
- [Get Paid Per API Call with x402 (free course)](https://youraitools.co/course): 7 lessons inside the community: 1 What a 402 response is and why agents need it; 2 Pricing per call; 3 Wallets, payTo and settling only on success; 4 Make your API readable by agents; 5 Listing in x402 directories; 6 Exposing your API over MCP; 7 Keep it healthy: monitoring and grades