Generating an MCP server is easy. Getting one that works is not.

In the official registry's July 2026 snapshot of 18,849 servers: 17.2% of remote servers were dead, 29.2% scored D or F. Listing is not verification.

dyph reads the OpenAPI spec, then calls the API to check it.

Showing the 12 most in-demand APIs below. Type to search all 17.

BC Data Cataloguegovernment BNG to Lat/Longreference Canada Holidaysgovernment D&D 5e APIgames disease.shpublic health EPA ECHOgovernment Jikanmedia LanguageTooltext Open Science Frameworkreference Refuge Restroomsreference Stack Exchangeopen data Transport for Londontransport UK Parliament Billsgovernment UK Parliament Membersgovernment UK Parliament Treatiesgovernment WebTRIS Traffic Datagovernment Wikimedia Analyticsreference

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jikan.jsonreal output

{
  "name": "get_anime",
  "description": "",
  "inputSchema": {
    "type": "object",
    "properties": {
      "unapproved": {
        "type": "boolean"
      },
      "page": {
        "type": "integer"
      },
      "limit": {
        "type": "integer"
      },
      "q": {
        "type": "string"
      },
      "type": {
        "type": "string"
      },
      "score": {
        "type": "number"
      },
      "min_score": {
        "type": "number"
      },
      "max_score": {
        "type": "number"
      },
      "status": {
        "type": "string"
      },
      "rating": {
        "type": "string"
      },
      "sfw": {
        "type": "boolean"
      },
      "genres": {
        "type": "string"
      },
      "genres_exclude": {
        "type": "string"
      },
      "order_by": {
        "type": "string"
      },
      "sort": {
        "type": "string"
      },
      "letter": {
        "type": "string"
      },
      "producers": {
        "type": "string"
      },
      "start_date": {
        "type": "string"
      },
      "end_date": {
        "type": "string"
      }
    }
  },
  "x-dyph": {
    "method": "GET",
    "path": "/anime",
    "effect": "reads",
    "verification": "verified",
    "checkedAt": "2026-09-25"
  }
}

One tool from the definitions file, shortened for this page. x-dyph is ours: what the call does, and whether we've confirmed it against the live API.

What "verified" means here

Verified

A live call on a recorded date returned a usable response. The response is saved.

Not verified

The endpoint did not answer, answered with something unusable, or has not been checked yet.

Only read endpoints are ever called. Tools that write or delete are never called — checking must not change anything on someone else's system.

APIs cataloged: 17
Tools total: 719
Verified: 224
Last updated: 2026-10-10

The catalog delivers ready-to-use tool definitions today. Hosted, running MCP servers are still in development — nothing on this site is a live service yet.