Try it
Paste a User-Agent and/or an MCP clientInfo.name.
Two answers per visitor
Declared: who it says it is, matched against the catalog. Observed: what it did over its requests. A User-Agent is a claim; behaviour is evidence. When they disagree (a “passive indexer” that calls tools), criba flags it.
| Observed class | Signal |
|---|---|
acts-on-results | followed a link that only existed inside a tool result |
agent-tool-use | called a real tool with real arguments |
agent-message | sent an A2A message with content |
probe | empty-argument calls, made-up tools or methods, auth tests |
indexer | discovery and listing only |
web-scanner | many missing paths |
The catalog v2026-11-08
MCP indexers and directories25
Glama · histor (modelmarket.dev) · plug.directory · mcpgw indexer · musedirectory.ai · mcptry.com · Pluginboard · AgentToolIndex · anlyon.dev · agent-tools.cloud · EveryMCP · Spiron · Moonglade · Syndai catalog · ElectraIndex · INITE Atlas · InvokeRank · Agent Service Directory · Talaria catalog · MCP Marketplace Enricher · mcp-ficha · lookupd · Orbit MCP Registry · protogrid · CodexGuild catalog review
MCP verifiers, health and security checks22
VerifyMCP · ToolVet · AgentTested · ProofBench · AgentIndex (aindex.com) · AgentRank · Faceabot reliability · PopNx MCP check · AlphaProxy probe · SquatchMCP scanner · MCP Harbor · McpStatus · mcp-server.io healthcheck · hultra-link · SecureMyAgent registry · Canopii scanner · fastdrop-verify · Exaforce MCP reputation · StealthStack link check · Koskamo directory check · Hermes catalog probe · ps-mcp-tools-probe
Self-declared agents and runtimes7
Signpost · coda-agent-runtime · Tacuri AI · HANS · quire · ibl.ai · mieru crew connector
Generic HTTP libraries6
Node.js (fetch/undici) · Python HTTP library · Go net/http · Deno / Bun · Vercel AI SDK · curl / axios / Guzzle
Internet security scanners5
LeakIX l9scan · Censys · Recorded Future · certstream alive collector · monitord-discovery
Sales and enrichment crawlers5
gtm-engine · sarnai-sales · prepulse acd-enricher · ForestEngine · ApcosysBot
A2A directories3
ALLAGENTS · A2A Registry · duami directory
Research and census2
GlobalAgentCensus · mcp2-research (KHU SIFT Lab)
Agent marketplaces2
brick.blue · agent-collector
AI company web crawlers2
GPTBot · ClaudeBot
API
GET /v1/bots
GET /v1/identify?ua=…&client=…
POST /v1/classify {"events":[{"protocol":"mcp","rpcMethod":"tools/list","clientName":"glama"}, …]}Nothing sent to the API is stored. Plain-text reference: /docs.txt.
Licence
Non-commercial
Free. Research, personal and non-profit use of the catalog and the API, with attribution (CC BY-NC 4.0).
Commercial
Inside a product, a paid service or a company's operations. Not available yet. Join the waitlist to hear when it is.
Waitlist for the commercial licence
No payment, no commitment: you will get one email when the commercial licence opens.
Privacy
API and page: nothing you send to the API is stored, and there are no analytics, cookies or request logs. Waitlist: we store the email, company, use case and notes you type, the date and the version of this text (2026-11-08), and nothing else (no IP address). Purpose: one email when the commercial licence opens. Legal basis: your consent (GDPR art. 6.1.a), which you can withdraw at any time. Kept until then and for at most 12 months, or until you ask us to delete it. Processor: Cloudflare (database in the EU). Controller and requests (access, rectification, erasure, objection, portability): contact@cribalo.com. You can complain to the Spanish data protection authority (AEPD).
En español: la API no guarda nada de lo que recibe. La lista de espera guarda solo el email, la empresa, el uso, las notas que escribas, la fecha y la versión de este texto, sin IP, para enviarte un único aviso cuando exista la licencia comercial. Base: tu consentimiento (art. 6.1.a RGPD), que puedes retirar cuando quieras. Se conserva hasta entonces y como máximo 12 meses, o hasta que pidas su borrado. Encargado: Cloudflare (UE). Responsable y derechos: contact@cribalo.com. Reclamaciones ante la AEPD.