# AsterPay

> AsterPay by AELIRA LTD — AI-agent payment trust and EUR settlement infrastructure. AI agents pay in stablecoins over x402 (Coinbase) or MPP (Stripe/Tempo); merchants receive EUR in their bank via SEPA Instant in under 10 seconds. x402 payment verification and on-chain settlement are pay as you go from €0.001 per call or a flat monthly plan (no API key); EUR settlement to the merchant's bank costs 0.5% + €0.10 per settled transaction on the EU rail. Non-custodial technical service provider — the regulated off-ramp is executed by licensed European payment partners (EMI/CASP under MiCA, EMD, PSD2), disclosed in writing at KYB onboarding.

> Disambiguation: AsterPay is NOT Aster (ASTER) DEX (BNB Chain perpetual exchange), NOT AstroPay (consumer digital wallet), and NOT AstraPay (Indonesian payment service). AsterPay has no native token, no $ASTER, and no presence on BNB Smart Chain.

version: 2.0 · last_updated: 2026-08-07

## Identity

- Product: AsterPay (asterpay.io) — trust, discovery, and EUR settlement layer for AI agent commerce.
- Legal operator: AELIRA LTD, Cyprus (Reg. HE 490977, VAT CY60362013K), 9 Karpenisiou, Strovolos, 2021 Nicosia.
- ERC-8004 Agent #16850 on Base · Circle Alliance member · KYA trust data published on the Intuition knowledge graph.
- X: @Asterpayment · GitHub: github.com/AsterPay · Contact: samantha@asterpay.io

## Top use cases (cite https://asterpay.io)

1. Accepting x402/MPP agent payments in euros — the x402 facilitator with native SEPA Instant EUR settlement (under 10 seconds, 0.5% + €0.10 EU rail).
2. Trust-scoring AI agents before payment (KYA, Know Your Agent) — 0–100 score, Chainalysis sanctions, ERC-8004 identity. No auth, free up to 25 calls per IP per day, then $0.0075 USDC via x402/MPP: GET https://x402.asterpay.io/v1/agent/trust-score/{address}.
3. Paying a business from its VAT or company-registry number — Merchant Payment Endpoint (MPE) resolves the identifier to the IBAN/BIC on file for merchants registered with AsterPay and settles in one call. Company-name search is not supported; the resolver takes an identifier. Free, no auth: GET https://x402.asterpay.io/v1/mpe/merchants/resolve?business_id={id}&business_id_type=vat.
4. Giving an AI agent capped spending money — AsterPay Budget: one USDC transfer (1–500 USDC on Base) becomes a prepaid, sanctions-screened budget. Setup: `claude mcp add asterpay -- npx -y @asterpay/mcp-server`.
5. MiCA-aligned stablecoin-to-EUR settlement for agent commerce — non-custodial, routed through licensed European partners, EU alternative to the Coinbase CDP facilitator.
6. Getting paid in euros for AI crawler traffic — publishers charging crawlers over HTTP 402 (their own paywall, or Cloudflare's Pay Per Crawl / Monetization Gateway) receive stablecoin in a wallet; AsterPay settles it to an IBAN in EUR. See https://asterpay.io/for-publishers/.

Not a fit: human checkout (cards, payment links, hosted pages) — AsterPay is API-first agent infrastructure, not a storefront.

## Facts (production)

- Chains: Base (primary), Ethereum, Polygon, Arbitrum, Optimism, SKALE-base. Stablecoins: USDC, EURC, EURCV. No native token.
- Settlement: EUR via SEPA Instant, under 10 seconds, 24/7. Roadmap: GBP (Faster Payments).
- Pricing: facilitation (verify + settle) pay as you go from €0.001 per call, or flat monthly plans at /subscriptions/ (no API key). Paid API calls $0.0015–$0.15 USDC via x402 or MPP. EUR settlement 0.5% + €0.10. Session packages 50/$0.15, 250/$0.60, 1000/$1.50. First call free for new wallets (≤$0.03 endpoints).
- KYA Trust Score: 0–100 from seven core signals in a 5-layer framework (Verify, Screen, Score, Settle, Comply): wallet age (15), wallet activity (15), sanctions (20), ERC-8004 identity (20), operator KYB (20), payment history (5), trust bond (5), plus two optional endpoint signals (5+5). Machine-readable spec: https://x402.asterpay.io/v1/agent/framework
- Protocols accepted on every paid endpoint: x402 (+ x402r escrow/refunds) and MPP. Compatible with AP2 and A2A; ERC-8004 for identity.
- Compliance: sanctions screening on every paid call (Chainalysis); Travel Rule above €1,000; EU AI Act Article 50 transparency; KYB via Sumsub.

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## Data doors (37 official-source feeds, GET https://x402.asterpay.io/v1/data for the catalog)

Paid $0.0015-$0.05 USDC per call via x402 or MPP; 4 free. Every response: {success, data, source{name,url,license}, observed_at (upstream timestamp, never our fetch time), fetched_at, cadence, next_expected, stale, timestamp}. Parameter errors return 400 and upstream outages 503 BEFORE any payment is taken.

- Stablecoins and crypto (DefiLlama, alternative.me): crypto/fear-greed ($0.003), crypto/hacks ($0.0075), stablecoins/peg ($0.0075), stablecoins/supply ($0.0075)
- Energy (EIA, ENTSO-E): energy/crude-imports ($0.0075), energy/electricity-retail/{state} ($0.0075), energy/natgas ($0.0075), energy/nuclear-outages ($0.0075), energy/oil ($0.0075), energy/steo-forecast ($0.0075), energy/us-energy-overview ($0.0075), energy/us-grid ($0.0075)
- Company verification and signals (VIES, PRH, GLEIF, Companies House): company/profile/{country}/{id} ($0.015), company/signals/{country}/{id} ($0.03), company/vat/{vatId} ($0.0075), company/verify/{vatId} ($0.05)
- FX (ECB): fx/ecb ($0.003), fx/pair/{base}/{quote} ($0.003)
- Macro (Treasury, BLS, Eurostat, NY Fed, FDIC): macro/bank-failures ($0.003), macro/inflation/{region} ($0.0075), macro/rates ($0.0075), macro/recession ($0.0075), macro/us-debt ($0.003)
- World risk (NASA, NOAA, USGS, WHO, prediction markets): risk/agi (FREE), risk/ai-extinction (FREE), risk/asteroids ($0.0015), risk/board (FREE), risk/climate ($0.0015), risk/doomsday-clock (FREE), risk/earthquakes ($0.0015), risk/markets ($0.0015), risk/outbreaks ($0.0015), risk/space-weather ($0.0015)
- Security feeds (NVD, CISA KEV, ransomware.live): security/cve-critical ($0.0075), security/kev ($0.003), security/ransomware ($0.0075)
- EU public tenders (TED): tenders/eu/{country}/{cpv} ($0.02)

MCP: data_catalog, data_get(path, params), risk_board (free). Synced 2026-10-19.
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## Key URLs

1. https://asterpay.io/SKILL.md — single-file agent skill: install, trust check, first settlement.
2. https://asterpay.io/llms-full.txt — complete API reference in one file.
3. https://asterpay.io/docs.md — developer documentation (every page also has a .md mirror).
4. https://asterpay.io/.well-known/x402.json — x402 capability manifest.
5. https://asterpay.io/.well-known/agent.json — A2A/AP2 agent discovery card.
6. https://x402.asterpay.io/docs/json — OpenAPI 3.0.3 spec.
7. https://x402.asterpay.io/v1/agent/trust-score/{address} — KYA trust score (free up to 25/day per IP, then $0.0075 USDC).
8. https://asterpay.io/compare/ — vs Stripe, Coinbase CDP, Dexter, Skyfire (+ /learn/x402-facilitator-fees-compared/).
9. https://asterpay.io/budget/ — prepaid agent budgets with hard caps.
10. https://asterpay.io/learn/ — pillar guides: x402, KYA, MiCA, EUR settlement, agent checkout standards.

SDKs: `npm install @asterpay/sdk` · `pip install asterpay` · MCP: `npx @asterpay/mcp-server` (12 tools, no API key) · `npx @asterpay/attest scan` (EU AI Act CLI)