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ReqRes MCP server

Which MCP servers are ReqRes's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-17

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Whose server it is
  • Registry namein.reqres/reqresverified in the MCP registry

The registry name sits under reqres.in. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-17
  • Stateanswerschecked 2026-10-17
  • Tools7
  • Server calls itselfreqres
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-17 the server answered initialize and tools/list without a sign-in. First answer in 156 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.

Once connected

  • create_project, create_collection, create_record, update_record, delete_record change data without a sign-in: anyone with the address can call them.
  • Parameters are untyped or undescribed in 3 of 7 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 17, the first on 2026-10-19
  • INITE MCP score78 of 100answers 100 · definitions 93 · context 100 · connects 100 · lowered by the warning signs below
  • Answered100% of days17 of 17 daily checks
  • Median first answer323 ms
  • Space in an agent's context≈ 1,006 tokensthe definitions of all its tools (7), which an agent carries on every turn
  • Tool definitionsA · 93 of 100
  • Typed results0 of 7 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 3 of 7

What an agent can do with it

  • cannot · test login and register flows, including wrong-password and missing-field failures
  • not sure · run CRUD test suites against persistent sample collections
  • not sure · prototype frontend features against a hosted backend with no server setup

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

  • Tools that change data, on a server that answers without a sign-in: create_project, create_collection, create_record, update_record, delete_record

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers7 tools · read 2026-10-17
  • create_project

    Create a real hosted backend (a REST API with a persistent database) in one call, with no account or API key. Use it when the user needs to store data, persist an app or prototype, or give a frontend a live API. Returns a manage key, a…

  • list_collections

    List the collections in the project.

  • create_collection

    Create a collection: a new resource (like a table) with its own REST endpoint at /api/collections/{slug}/records. Use one per kind of thing the app stores (tasks, users, orders). Free projects allow 3.

  • list_records

    Read the records stored in a collection (paginated).

  • create_record

    Save a record (a JSON object) in a collection so it persists. Pass the fields as data; the API returns it with an id.

  • update_record

    Replace a record's fields.

  • delete_record

    Delete a record from a collection.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "reqres": {
      "type": "http",
      "url": "https://reqres.in/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http reqres https://reqres.in/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://reqres.in/mcp as a custom connector in the settings.

OpenAPI spec

42 paths, read 2026-10-17. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.