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usedby

R0· no sign-in

Which companies publicly use which AI and software tools, each line with its public source.

v1.2.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality86good
Trust83of 100
Uptime, 30 days100%
Latency p50390 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "usedby": {
      "type": "http",
      "url": "https://www.usedby.ai/mcp"
    }
  }
}
claude mcp add --transport http usedby https://www.usedby.ai/mcp
[mcp_servers.usedby]
url = "https://www.usedby.ai/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "usedby": {
      "type": "remote",
      "url": "https://www.usedby.ai/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "usedby": {
      "type": "http",
      "url": "https://www.usedby.ai/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=usedby&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vd3d3LnVzZWRieS5haS9tY3AifQ%3D%3D"
}
{
  "servers": {
    "usedby": {
      "type": "http",
      "url": "https://www.usedby.ai/mcp"
    }
  }
}
{
  "mcpServers": {
    "usedby": {
      "httpUrl": "https://www.usedby.ai/mcp"
    }
  }
}
extensions:
  "usedby":
    enabled: true
    name: "usedby"
    type: streamable_http
    uri: "https://www.usedby.ai/mcp"
    timeout: 300

Quality 86 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations5 of 5 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 1,072 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability75 · weight 15
  • warn
    stability.changes14 tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

5 tools, about 1,072 tokens to load them all · tool set 916379698aac · tools last changed 2026-10-16 · checked 2026-10-20 15:57 UTC

Tool changes

  • comparechangedoutput schema
  • recent_changeschangedoutput schema
  • company_stackchangedoutput schema
  • who_useschangeddescription, output schema
    before

    Companies that publicly use a tool, strongest proof first, each with its proof level (CONFIRMED, OBSERVED, or SIGNAL: a job post, the weakest proof), source page and first public proof date.

    after · 87% of words in common

    Companies that publicly use a tool, strongest proof first, each with its proof level (CONFIRMED, DECLARED: the company states it, OBSERVED, or SIGNAL: a job post, the weakest proof), source page and first public proof date.

  • comparechangedinput schema, output schema
  • company_stackchangedinput schema, output schema
  • who_useschangedinput schema, output schema
  • comparechangeddescription, output schema
    before

    Two tools side by side: public customers with their proof mix, top industries, companies confirmed or observed on both, and vendor facts with their sources.

    after · 68% of words in common

    Two tools side by side: public customers with their proof mix, top industries, the companies on both (every proof level, each side's level given), and vendor facts with their sources.

  • search_toolschangeddescription, output schema
    before

    Find AI and software tools tracked on usedby by name or category, with how many companies publicly use each.

    after · 66% of words in common

    Find AI and software tools tracked on usedby by name, other product name, or what they do (category or topic, e.g. 'CRM', 'translation'), with how many companies publicly use each.

  • comparechangedoutput schema

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository
provenance55
liveness100
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-12d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://www.usedby.ai/mcp streamable-httpnoneyes100%390 ms2025-11-252026-10-20

Tools (5)

company_stackread-onlyTools a company publicly uses according to usedby, strongest proof first, each with its proof level (job-post signals last) and source page.
compareread-onlyTwo tools side by side: public customers with their proof mix, top industries, the companies on both (every proof level, each side's level given), and vendor facts with their sources.
recent_changesread-onlyCompanies newly listed as customers by tool vendors in the last N days, optionally for one tool. Departures are not published.
search_toolsread-onlyFind AI and software tools tracked on usedby by name, other product name, or what they do (category or topic, e.g. 'CRM', 'translation'), with how many companies publicly use each.
who_usesread-onlyCompanies that publicly use a tool, strongest proof first, each with its proof level (CONFIRMED, DECLARED: the company states it, OBSERVED, or SIGNAL: a job post, the weakest proof), source page and first public proof date.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "ai.usedby/usedby",
  "icons": [
    {
      "src": "https://www.usedby.ai/apple-icon.png",
      "sizes": [
        "180x180"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "usedby",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://www.usedby.ai/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2.0",
  "websiteUrl": "https://www.usedby.ai/developers",
  "description": "Which companies publicly use which AI and software tools, each line with its public source."
}