Manifest & Protocol Validators
Validate a live origin or paste raw manifest content against the canonical schema and structural rules for twelve agentic-web standards. Powered by POST /api/validate and available over MCP via validate_manifest at https://agenticweb.wiki/mcp.
Interactive validator
Supported manifest validators
| Standard | Manifest ID | Canonical path | Content-Type | Specification |
|---|---|---|---|---|
| llms.txt | llms-txt | /llms.txt | text/markdown | llmstxt.org |
| MCP Server Cards (SEP-2127) | mcp-server-cards | /mcp/server-card · /.well-known/mcp/server-card.json | application/mcp-server-card+json | SEP-2127 |
| Agent2Agent Protocol (A2A) | a2a | /.well-known/agent-card.json | application/json | A2A v1.0.1 |
| api-catalog (RFC 9727) | api-catalog-rfc9727 | /.well-known/api-catalog | application/linkset+json | RFC 9727 |
| AI Crawler Tokens in robots.txt | ai-crawler-tokens-robots | /robots.txt | text/plain | RFC 9309 |
| AGENTS.md | agents-md | /AGENTS.md | text/markdown | agents.md |
| Agent Skills Format | anthropic-agent-skills-format | /.well-known/agent-skills/index.json | application/json | Agent Skills Discovery v0.2 |
| auth.md | auth-md | /auth.md | text/markdown | auth.md v0.6.0 |
| Open Knowledge Format (OKF) | okf | /okf/index.md | text/markdown | OKF v0.2 |
| Agent Resource Discovery (ARD) | ard | /.well-known/ard.json | application/ard+json | ARD v0.91 |
| AI Catalog | ai-catalog-well-known-file | /.well-known/ai-catalog.json | application/ai-catalog+json | AI Catalog |
| security.txt (RFC 9116) | security-txt | /.well-known/security.txt | text/plain | RFC 9116 |
Programmatic HTTP API & JSON Endpoints
POST /api/validate— JSON body{"manifest": "llms-txt", "domain": "cloudflare.com"}or{"manifest": "a2a", "content": "{...}"}.GET /api/v1/protocols.json— full machine-readable catalog of 132 standards (aliases/data/standards.json).GET /api/v1/protocols/<id>.json— single-protocol JSON bundle (e.g./api/v1/protocols/mcp.json).GET /api/v1/instances.json— verified implementation instances catalog (aliases/data/instances.json).