agentpluginsdirectory developer resources

Machine-readable surfaces for Agent Plugins Directory (agentpluginsdirectory.com). Public, read-only except for the allowlisted GitHub-manifest fetch used by the in-browser validator. No API key. No OAuth. No webhooks.

When to use these resources

Use them when an agent needs a verified Agent Plugin listing, a census count, a schema check of plugin.json / mcp.json, or the reproduced 1.0.0 specification. Do not use them as an official registry, a plugin host, or an installer.

HTTP surfaces

• https://agentpluginsdirectory.com/llms.txt — briefing, including when-to-use.
• https://agentpluginsdirectory.com/llms-full.txt — complete categorized listing.
• https://agentpluginsdirectory.com/census.json — verified index JSON (CC BY 4.0).
• https://agentpluginsdirectory.com/api/v1/registry-manifest.json — same payload as the census.
• https://agentpluginsdirectory.com/openapi.json — OpenAPI 3.1.
• https://agentpluginsdirectory.com/.well-known/api-catalog — RFC 9727 linkset.
• https://agentpluginsdirectory.com/mcp — read-only Streamable HTTP MCP (search, get plugin, census summary).
• https://agentpluginsdirectory.com/server.json — MCP registry metadata.
• https://agentpluginsdirectory.com/.well-known/ai-catalog.json — domain MCP discovery.
• https://agentpluginsdirectory.com/.well-known/mcp/server-card.json — server card.
• https://agentpluginsdirectory.com/.well-known/agent-skills/index.json — skill index.
• https://agentpluginsdirectory.com/auth.md — how authentication works (none).
• https://agentpluginsdirectory.com/mcp.json — MCP server card alias.
• https://agentpluginsdirectory.com/.well-known/webfinger — site identity links.
• https://agentpluginsdirectory.com/humans.txt — operator credits.
• https://agentpluginsdirectory.com/.well-known/oauth-protected-resource — RFC 9728 (empty authorization_servers).
• https://agentpluginsdirectory.com/pricing.md — machine-readable pricing (free).
• https://agentpluginsdirectory.com/changelog.md — on-site surface changelog.
• https://agentpluginsdirectory.com/sitemap.xml and https://agentpluginsdirectory.com/sitemap.md.
• https://agentpluginsdirectory.com/feed.xml — blog Atom feed.
• HTML pages also serve text/markdown when Accept prefers it (Vary: Accept).

Validator helper

POST /api/fetch-manifest with {"url":"https://raw.githubusercontent.com/..."} returns the file text. Errors use RFC 9457 application/problem+json. Rate-limited. Hosts other than GitHub raw and gist are rejected.

MCP tools

directory_get_census_summary, directory_search_plugins, directory_get_plugin. No authentication.