# agent402.dev

**Canonical:** https://apis.io/providers/agent402-dev/  
**Website:** https://agent402.dev/  
**APIs profiled:** 2

agent402.dev is a pay-per-call agent-commerce service that sells website release evidence and offline tools to AI agents over the x402 v2 protocol, settled in USDC on Base (eip155:8453) with no accounts, sign-up or API keys — payment is the authorization. Its primary product is a 5.00 USDC AI Discovery Site Audit: 22 deterministic technical SEO / AEO / GEO checks on one public HTTPS page plus five evidence-derived remediation slots for JSON-LD, metadata, robots.txt, llms.txt and sitemap.xml, with a free exact-body eligibility check, a live sample report and a machine-readable methodology published beside it. Seven auxiliary direct HTTP resources are priced from 0.01 to 5.99 USDC: a Verified URL Evidence Snapshot, a HEAD-only website preflight, an x402 endpoint health check and launch-readiness audit, a deterministic task-priority day scheduler, and two downloadable ZIP packs. The whole surface is published machine-first — an OpenAPI 3.1 contract at /openapi.json, an x402 v2 manifest at /.well-known/x402, a conformant A2A agent card, llms.txt and a JSON endpoint map at /meta.json — while the operator is not named anywhere on the site. An earlier MCP surface has been deliberately retired (410 Gone).

## Kin Score — 39.0 / 100 (thin)

Scored 2026-10-09 under rubric 0.23.0. Trend: flat (+0.0 from 39.0).

| Facet | Score |
|---|---|
| Discoverability | 64.3 |
| Contract Quality | 51.1 |
| Contract Governance | 18.2 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 49.4 |
| Access Clarity | 31.6 |

Regulatory layer — **Payments**: 15.2 (matched via tags).

## Agent readiness — 36.0 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | documented |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | conformant |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (3)

- **agent402.dev Developer tools API** — The Developer tools API from agent402.dev — 9 operation(s) for developer tools.
- **agent402.dev Downloads API** — The Downloads API from agent402.dev — 2 operation(s) for downloads.
- **agent402.dev Productivity API** — The Productivity API from agent402.dev — 1 operation(s) for productivity.

## Agentic access (1)

- **Agent402 Dev Agentic Access** — 12 operations · 6 acting

## Security (2)

- **Agent402 Dev Authentication** — 1 scheme
- **Agent402 Dev Domain Security** — TLSv1.3

## Plans (1)

- **Agent402 Dev Plans Pricing**

## Tags

Company, x402, Agentic Payments, Agentic Commerce, AI Agents, A2A, Technical SEO, Website Audits, URL Evidence, Developer Tools, Base

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/agent402-dev/). Scores are computed from the provider's own public artifacts under a published rubric.