# 400860 x402 Growth and Safety Catalog

> Profile generated by API Evangelist on 2026-09-19 (method: generated) from apis.yml and the probe artifacts in this repository. The operator publishes no llms.txt: https://www.400860.xyz/llms.txt returns 404 and https://api.400860.xyz/llms.txt returns HTTP 521.

400860 x402 Growth and Safety Catalog is the name of a single A2A agent listed on a2aregistry.org, whose agent card is declared at https://api.400860.xyz/.well-known/agent-card.json. The registry copy of the card describes five skills for agents buying and selling over the x402 payment protocol: Agent Security Policy Pack, x402 Market Intel, Paid MCP Launch Pack, Seller Checkout Repair Pack, and Agent Spend Firewall Pack. As of 2026-09-19 the api.400860.xyz origin answers Cloudflare 521 on every path, the registry records 0% uptime and a failed message/send smoke test, and www.400860.xyz serves a stock NextChat chat UI with no documentation, pricing or legal pages. The operator is not identified.

## What was probed

- Website: https://400860.xyz/ (307 to https://www.400860.xyz/, HTTP 200, NextChat)
- Agent card (registry location): https://api.400860.xyz/.well-known/agent-card.json (HTTP 521)
- Agent card (www): https://www.400860.xyz/.well-known/agent-card.json (HTTP 404)
- OpenAPI, llms.txt, MCP, OAuth and APIs.json discovery paths: none served on any host (see well-known/400860-xyz-well-known.yml)

## Artifacts in this repository

- well-known/400860-xyz-well-known.yml: full .well-known probe, zero hits
- security/400860-xyz-domain-security.yml: TLS 1.3, HSTS, SPF present; DNSSEC, CAA, DMARC absent
- regulatory/400860-xyz-regulatory-posture.yml: no horizontal regulatory signals published
- plans/400860-xyz-plans-pricing.yml: no published plans (plan_count 0)
- rate-limits/400860-xyz-rate-limits.yml: no documented limits or headers (limit_count 0)

## Optional

- Registry listing: https://a2aregistry.org/api/agents/67dae5ec-7fb1-4d54-987c-fba9a5e0a0a0