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BY THE APIDECK TEAM

Know what’s behind the directory.

Explore the coverage, sources, and public data that power API Tracker.

18,249

API profiles indexed

Observed

Browse API profiles →
44,805

MCP registry entries

Imported

Browse MCP servers →

Track MCP registry growth →

Two catalogs. Different evidence.

API profiles describe providers and their developer resources. The MCP catalog indexes namespaced server records from the Official MCP Registry, normalized with MCP Connect. These are different units; the counts should not be added together as unique providers.

Provider descriptions and registry metadata can change. Review dates apply to the specific evidence displayed, rather than every field in a profile.

PUBLIC MCP CATALOG

Inspect the data.

View an example response →

The read-only JSON endpoint supports q, publisher, transport, offset, and limit (1–100). It returns matching server records, result counts, and the snapshot date.

GET /api/mcp/catalog?publisher=official&limit=24
name
Namespaced registry identity used to distinguish servers.
title / description
Display name and description supplied in the catalog.
version
Version listed in the registry snapshot.
repository / website
Source and website links, when provided.
remoteUrl / transports
Published connection endpoint and transport metadata.
publisher
Reviewed affiliation status, with evidence and a review date when available.

“Official” describes reviewed publisher affiliation. It does not certify security, uptime, or client compatibility. API Tracker lists the servers; connections and tool execution happen with their providers.

Help keep the directory accurate.

Send a correction with the profile URL and a supporting publisher source, or submit an API or MCP server for review.

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