Free finance data API

bluefin

A federated market data API for quotes, fundamentals, options, calendars, filings, public records, and source-backed financial research.

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26

source APIs

479

cataloged routes

468

OpenAPI paths

60

free requests per minute

Quickstart

One base URL for the facade.

Bluefin chooses useful sources by default and returns provenance with the response. Source-specific APIs stay visible when you need exact upstream contracts.

curl "https://api.bluefin.dev/v1/quote?symbols=AAPL,MSFT"

curl "https://api.bluefin.dev/v1/search?q=apple"

curl "https://api.bluefin.dev/v1/entities/resolve?q=Apple%20Inc"

Routes

Built for agents and applications.

Markets

Quotes, price history, movers, screeners, calendars, options, and fund holdings.

Fundamentals

Statements, valuation, ownership, transcripts, ratings, filings, and corporate events.

Official data

SEC facts, FINRA/OTC data, FDIC banks, Treasury series, FRED macro series, LEIs, and public records.

Source coverage

A source index with exact contracts.

Use the facade at api.bluefin.dev for normalized workflows, or inspect individual source APIs when you need provider-level routes and OpenAPI files.

Open the source index