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A live, machine-queryable index of AI agents, MCP servers and tools. Every record separates what publishers declare from what we observed.

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  • llms.txt
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  • About our crawler
Records are indexed from public sources and attributed to them. Observed data is ours; declared data is theirs.PrivacyTermsv0.1 · early network
Transparency

Sources, adapters and crawl runs

The index is assembled from public, documented sources. Each record keeps the raw upstream payload and the time it was fetched. Nothing is added by hand.

npm registry
23k

npm registry search for packages published as MCP servers or agents.

last fetch 52 min ago · first record 2 mo ago · resumable cursor saved
Official MCP Registry
58k

Official Model Context Protocol registry (server.json documents with packages and remotes).

last fetch 51 min ago · first record 2 mo ago · resumable cursor saved
GitHub curated lists
837

Curated public lists of MCP servers and agents maintained on GitHub.

last fetch 50 min ago · first record 2 mo ago
Wellknown seed list
15

Remote endpoints curated from vendor documentation (data/seeds/remote-endpoints.json).

last fetch 50 min ago · first record 2 mo ago
PyPI
21k

PyPI registry facts for records distributed as Python packages.

last fetch 50 min ago · first record 2 mo ago
A2A Agent Card
3.2k

A2A Agent Cards fetched from /.well-known on candidate hosts.

last fetch 49 min ago · first record 2 mo ago
ARD catalog (/.well-known/ard.json)
1.9k

ARD catalogs (/.well-known/ard.json, ai-catalog.json, robots Agentmap) on candidate hosts.

last fetch 49 min ago · first record 2 mo ago
Verified owner
166

Enabled on the crawl schedule.

last fetch 25 h ago · first record 2 mo ago
ModelScope MCP 广场
103

Enabled on the crawl schedule.

last fetch 2 h ago · first record 2 mo ago
Self-submissions

Agents announced through the API or MCP tool. Lowest priority source until the publisher claims the record.

90

Recent runs

jobstarteddurationresulterrors
probe47 min ago444sok 3393 · hung 0 · facts 400 · failed 2 · probed 3498 · selected 3500 · remaining 0 · hostCapped 4571 · factChanges 1982: https://api.carbon-cashmere.de/mcp: Failed query: insert into "observations" ("i
ingest:gitee49 min ago65sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 01: searched 5 queries and Gitee returned an empty list for every one — the search A
ingest:modelscope49 min ago1sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 01: list page 3: 403 — the first request of this run failed, so nothing was read; re
ingest:pypi_index49 min ago0sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 0
ingest:ard_catalog49 min ago30sfailed 0 · created 0 · fetched 8 · updated 8 · unchanged 0
ingest:a2a_card50 min ago30sfailed 0 · created 2 · fetched 7 · updated 2 · unchanged 3
ingest:pypi
50 min ago
29s
failed 0 · created 0 · fetched 43 · updated 3 · unchanged 40
ingest:seed50 min ago0sfailed 0 · created 0 · fetched 15 · updated 0 · unchanged 15
ingest:github50 min ago12sfailed 0 · created 0 · fetched 600 · updated 0 · unchanged 600
ingest:mcp_registry51 min ago23sfailed 0 · created 23 · fetched 621 · updated 23 · unchanged 575
ingest:npm52 min ago61sfailed 0 · created 6 · fetched 750 · updated 744 · unchanged 0
probe2 h ago403sok 3397 · hung 0 · facts 400 · failed 2 · probed 3498 · selected 3500 · remaining 0 · hostCapped 4556 · factChanges 1842: https://api.carbon-cashmere.de/mcp: Failed query: insert into "observations" ("i
ingest:gitee2 h ago59sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 01: searched 5 queries and Gitee returned an empty list for every one — the search A
ingest:modelscope2 h ago162sfailed 0 · created 0 · fetched 98 · updated 84 · unchanged 141: list page 3: 403 — 2 page(s) succeeded first this run, so this is throttling; re
ingest:pypi_index2 h ago0sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 0
ingest:ard_catalog2 h ago21sfailed 0 · created 0 · fetched 2 · updated 1 · unchanged 11: https://ai.affix-io.com/.well-known/ai-catalog.json: no entries array
ingest:a2a_card2 h ago22sfailed 0 · created 1 · fetched 5 · updated 3 · unchanged 1
ingest:pypi2 h ago28sfailed 0 · created 0 · fetched 40 · updated 1 · unchanged 39
ingest:seed2 h ago0sfailed 0 · created 0 · fetched 15 · updated 0 · unchanged 15
ingest:github2 h ago10sfailed 0 · created 0 · fetched 600 · updated 0 · unchanged 600
ingest:mcp_registry2 h ago8sfailed 0 · created 10 · fetched 298 · updated 9 · unchanged 279
ingest:npm2 h ago54sfailed 0 · created 2 · fetched 750 · updated 748 · unchanged 0
probe3 h ago400sok 3384 · hung 0 · facts 400 · failed 2 · probed 3498 · selected 3500 · remaining 0 · hostCapped 4569 · factChanges 1652: https://api.carbon-cashmere.de/mcp: Failed query: insert into "observations" ("i
ingest:gitee3 h ago59sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 01: searched 5 queries and Gitee returned an empty list for every one — the search A
ingest:modelscope3 h ago1sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 01: list page 3: 403 — page 3 has now failed 3 runs in a row with nothing read; rest
ingest:pypi_index3 h ago0sfailed 0 · created 0 · fetched 0 · updated 0 · unchanged 0
ingest:ard_catalog3 h ago22sfailed 0 · created 1 · fetched 9 · updated 7 · unchanged 1
ingest:a2a_card3 h ago23sfailed 0 · created 4 · fetched 5 · updated 0 · unchanged 11: https://ledger.horizonshield.dev/.well-known/agent-card.json: iconUrl: Invalid i
ingest:pypi3 h ago28sfailed 0 · created 0 · fetched 41 · updated 1 · unchanged 40
ingest:seed3 h ago0sfailed 0 · created 0 · fetched 15 · updated 0 · unchanged 15