Datacircle API

Last updated: November 5, 2026

Our API is free and open, with no key: list every API, see who is best for each and search every plan. It answers in JSON at https://api.datacircle.dev/v1, from the same sheet as this site. Its spec is at api.datacircle.dev/v1/openapi.json, an OpenAPI 3.1 file you can import. Each key of a plan means what /fields says.

List the APIs

curl https://api.datacircle.dev/v1/apis

[{"api": "Employee profile", "slug": "linkedin-profile", "plans": 4424, "providers": 381,
  "sheetPage": "https://datacircle.dev/linkedin-profile-api-pricing",
  "bestPage": "https://datacircle.dev/best-linkedin-profile-api",
  "best": {"provider": "Bridgly", "plan": "Pay as you go", "score": 78.8, "perThousand": 2}}, ...

See who is best for an API

Its plans, best first by score, each with its rank. limit gives 1 to 50 plans, 10 when left out.

curl "https://api.datacircle.dev/v1/apis/linkedin-profile/best?limit=3"

{"api": "Employee profile", "slug": "linkedin-profile", "total": 4424,
 "plans": [{"provider": "Bridgly", "plan": "Pay as you go", "score": 78.8, "perThousand": 2, "rank": 1, ...

Search the plans

By API (its name or its slug), by words of the provider's or plan's name, sorted by score, price or provider, with limit and offset.

curl "https://api.datacircle.dev/v1/plans?api=email-finder&sort=price&limit=5"

{"total": 4400, "offset": 0, "sheetPage": "https://datacircle.dev/email-finder-api-pricing",
 "bestPage": "https://datacircle.dev/best-email-finder-api",
 "plans": [{"provider": "A-Leads", "plan": "Free trial", "perThousand": 0, "score": null, "rank": null, ...

One provider's plans and ranks

Its plans on each API it sells, and its rank there, as its best page ranks it.

curl https://api.datacircle.dev/v1/providers/bridgly

{"provider": "Bridgly", "slug": "bridgly", "website": "https://bridgly.app",
 "apis": [{"api": "Employee profile", "slug": "linkedin-profile", "rank": 1, "plans": [...

Limits

You can make 60 calls a minute from each address. Past 60 calls a minute, the API answers 429 with a Retry-After header. To read every plan at once, download datacircle.json.

Our MCP server

Anyone can use our MCP server: add https://api.datacircle.dev/mcp to Claude, ChatGPT or Cursor. See /docs/mcp for the steps.