# 400860 x402 Growth and Safety Catalog

**Canonical:** https://apis.io/providers/400860-xyz/  
**Website:** https://400860.xyz/  
**APIs profiled:** 0

400860 x402 Growth and Safety Catalog is the name under which a single A2A agent is listed on a2aregistry.org, with its agent card declared at https://api.400860.xyz/.well-known/agent-card.json. The registry copy of the card describes five skills for agents that buy and sell over the x402 payment protocol: an agent security policy pack, x402 market intel, a paid MCP launch pack, a seller checkout repair pack, and an agent spend firewall pack. As of 2026-09-19 the api.400860.xyz origin answers Cloudflare 521 on every path, the registry's own health checks record 0% uptime and a failed message/send smoke test, and www.400860.xyz serves a stock NextChat chat interface with no company, documentation, pricing or legal pages. The operator is not identified anywhere on its own hosts.

## Kin Score — 2.3 / 100 (minimal)

Scored 2026-11-02 under rubric 0.26.0. Trend: flat (+0.0 from 2.3).

| Facet | Score |
|---|---|
| Discoverability | 44.6 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Payments**: 5.4 (matched via tags).

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |
| MCP Tool Quality | na |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **400860 Xyz Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **400860 Xyz Plans Pricing**

## Tags

AI Agents, A2A, x402, Agentic Payments, MCP, Agent Security, Agent Marketplaces

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/400860-xyz/). Scores are computed from the provider's own public artifacts under a published rubric.