Loutre

app.loutre/loutreVersion 1.0.0

Hosted mock APIs from OpenAPI, TypeScript or Postman: realistic data, errors and latency on demand.

Status

Responds254 msNov 14, 2026, 13:36 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 13:36 UTC
Latency: 254 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://api.loutre.app/mcpResponds254 msNov 14, 2026, 13:36 UTC

No sign-in

Claude Code

claude mcp add --transport http loutre https://api.loutre.app/mcp

Claude Desktop and claude.ai

1
2
3

Settings > Connectors > Add custom connector
Name: loutre
Remote MCP server URL: https://api.loutre.app/mcp

Cursor

{
  "mcpServers": {
    "loutre": {
      "url": "https://api.loutre.app/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"loutre","type":"http","url":"https://api.loutre.app/mcp"}'

Built your own server? run.zero hosts MCP servers on European infrastructure.

Host your own MCP server on run.zero

Tools

17 tools

Tools of Loutre
	Description		Read-only	Idempotent	Open world
`add_rule`Add a conditional response to a route: when the request matches the conditions (query, header, path param, body field), the mock answers with this status, body and latency. Rules are evaluated in order, the first match wins; x-loutre-* headers keep priority.	Add a conditional response to a route: when the request matches the conditions (query, header, path param, body field), the mock answers with this status, body and latency. Rules are evaluated in order, the first match wins; x-loutre-* headers keep priority.	Not declared	Not declared	Not declared	Not declared
`call_mock`Call a route of the mock like an HTTP client would and return the status, the x-loutre-* headers and the body. The headers x-loutre-status, x-loutre-delay, x-loutre-count, x-loutre-message and x-loutre-seed are honoured; latency is not awaited, it is reported in delayMs. Writes (POST, PUT, PATCH, DELETE) are persisted when persistent state is on. For a GraphQL mock, POST to its GraphQL path with the body { "query": "…", "variables": { … } }; mutations are persisted the same way.	Call a route of the mock like an HTTP client would and return the status, the x-loutre-* headers and the body. The headers x-loutre-status, x-loutre-delay, x-loutre-count, x-loutre-message and x-loutre-seed are honoured; latency is not awaited, it is reported in delayMs. Writes (POST, PUT, PATCH, DELETE) are persisted when persistent state is on. For a GraphQL mock, POST to its GraphQL path with the body { "query": "…", "variables": { … } }; mutations are persisted the same way.	Not declared	Not declared	Not declared	Not declared
`clear_requests`Empty the mock's request log.	Empty the mock's request log.	Not declared	Not declared	Not declared	Not declared
`clear_rules`Remove every conditional rule of a route.	Remove every conditional rule of a route.	Not declared	Not declared	Not declared	Not declared
`create_mock`Create a hosted mock from an OpenAPI 3.0/3.1 or Swagger 2.0 document (YAML or JSON), from TypeScript types (interfaces, types, enums: CRUD routes derived, or a route map type keyed like "GET /users") or from a Postman v2 collection, an Insomnia export (v4 JSON or v5 YAML), a Bruno collection (JSON export, or .bru files one after the other), a HAR file (headers and cookies are dropped, data is generated), a json-server db.json (records served as they are), curl commands, or a GraphQL schema (SDL or introspection JSON; Pro plan: queries, mutations and introspection answered on POST /graphql). OpenAPI 3.2 is read too. Give the document in `spec`, or its public address in `url` (then the mock re-reads it every six hours and follows changes). Returns the URL, the route list and an ownerToken to keep for later changes. Data is realistic and coherent, generated once. Without an account the mock lives seven days.	Create a hosted mock from an OpenAPI 3.0/3.1 or Swagger 2.0 document (YAML or JSON), from TypeScript types (interfaces, types, enums: CRUD routes derived, or a route map type keyed like "GET /users") or from a Postman v2 collection, an Insomnia export (v4 JSON or v5 YAML), a Bruno collection (JSON export, or .bru files one after the other), a HAR file (headers and cookies are dropped, data is generated), a json-server db.json (records served as they are), curl commands, or a GraphQL schema (SDL or introspection JSON; Pro plan: queries, mutations and introspection answered on POST /graphql). OpenAPI 3.2 is read too. Give the document in `spec`, or its public address in `url` (then the mock re-reads it every six hours and follows changes). Returns the URL, the route list and an ownerToken to keep for later changes. Data is realistic and coherent, generated once. Without an account the mock lives seven days.	Not declared	Not declared	Not declared	Not declared
`delete_mock`Permanently delete a mock and its kept schema.	Permanently delete a mock and its kept schema.	Not declared	Not declared	Not declared	Not declared
`get_mock`Details of a mock: routes with identifiers, behaviour, lock, sample generated bodies per route.	Details of a mock: routes with identifiers, behaviour, lock, sample generated bodies per route.	Not declared	Not declared	Not declared	Not declared
`get_requests`The latest requests received by the mock, most recent first: method, path, query, status, headers and body as received (body cut at 8 KB), where the answer came from, latency. Each entry has an id for replay_request.	The latest requests received by the mock, most recent first: method, path, query, status, headers and body as received (body cut at 8 KB), where the answer came from, latency. Each entry has an id for replay_request.	Not declared	Not declared	Not declared	Not declared
`list_mocks`List the connected account's mocks (API token required), with their URL, routes and expiry.	List the connected account's mocks (API token required), with their URL, routes and expiry.	Not declared	Not declared	Not declared	Not declared
`regenerate_mock`Generate a new data set (new seed), for the whole mock or for one route and the routes sharing its collection. A full new set forgets persisted writes.	Generate a new data set (new seed), for the whole mock or for one route and the routes sharing its collection. A full new set forgets persisted writes.	Not declared	Not declared	Not declared	Not declared
`replay_request`Replay a request from the log exactly as it was received (same method, path, headers and body) against the mock as it is now, and return the answer. Useful after changing a rule, a body or a scenario.	Replay a request from the log exactly as it was received (same method, path, headers and body) against the mock as it is now, and return the answer. Useful after changing a rule, a body or a scenario.	Not declared	Not declared	Not declared	Not declared
`reset_state`Forget persisted writes (POST, PUT, PATCH, DELETE): the generated collections come back as they were.	Forget persisted writes (POST, PUT, PATCH, DELETE): the generated collections come back as they were.	Not declared	Not declared	Not declared	Not declared
`set_access`Lock a mock with a token (private) and/or restrict the allowed browser origins. Pro plan.	Lock a mock with a token (private) and/or restrict the allowed browser origins. Pro plan.	Not declared	Not declared	Not declared	Not declared
`set_behavior`Change a mock's behaviour: default status, latency, jitter, error rate, persistent writes, and per route status, latency, hand-written bodies, rules. Merge semantics: missing keys are kept, null clears.	Change a mock's behaviour: default status, latency, jitter, error rate, persistent writes, and per route status, latency, hand-written bodies, rules. Merge semantics: missing keys are kept, null clears.	Not declared	Not declared	Not declared	Not declared
`set_domain`Serve the mock under the account's own hostname (Pro): declares it at Cloudflare and returns the CNAME to create (hostname → target) plus the current status; call again without hostname to re-check, or with hostname null to remove it.	Serve the mock under the account's own hostname (Pro): declares it at Cloudflare and returns the CNAME to create (hostname → target) plus the current status; call again without hostname to re-check, or with hostname null to remove it.	Not declared	Not declared	Not declared	Not declared
`set_response`Set the JSON body a route returns for a given status (hand-written response); a null body restores the generated response.	Set the JSON body a route returns for a given status (hand-written response); a null body restores the generated response.	Not declared	Not declared	Not declared	Not declared
`sync_mock`Re-read the schema at the mock's source URL now and update the mock if it changed (routes, fields; settings kept, persisted writes forgotten). force regenerates even when the document is unchanged.	Re-read the schema at the mock's source URL now and update the mock if it changed (routes, fields; settings kept, persisted writes forgotten). force regenerates even when the document is unchanged.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Nov 2, 2026
Updated: Nov 2, 2026
Website: https://loutre.app/docs#mcp⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Developer toolsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

Are you the operator? Claim this listing