Finance.Foundation
Open Financial Infrastructure

The open data and intelligence layer
for global finance.

Structured financial data, research, standards and intelligence — built for people, developers and AI agents. Every page here has an API twin.

121companies
48markets
56assets
32funds
20banks
37countries
1open API
Financial Knowledge Graph

Everything is connected. The data should be too.

A company issues a security, which lists on a market, in a country, whose central bank sets the price of money — while funds hold the security. Finance Foundation models finance as typed entities and typed relationships, not disconnected tables.

issues lists_on located_in sector holds central_bank COMPANYApple SECURITYAAPL MARKETNasdaq COUNTRYUnited States SECTORTechnology FUNDQQQ INSTITUTIONFederal Reserve

Live example: open Apple and follow the connections — or explore the whole graph as an interactive map. Every edge is a real link on this site and in the API.

Data

Structured, sourced, honest

Reference data on the world's most important financial entities. Clearly versioned (seed-0.7 · marketcap-1 · 2026-08-30), approximate by design, never pretending to be real-time.

CompanyTickerExchangeCountryMkt cap ≈
NVIDIASemiconductors NVDANasdaq Stock MarketUnited States $5.2tn
AppleConsumer Electronics AAPLNasdaq Stock MarketUnited States $4.7tn
AlphabetInternet & Search GOOGLNasdaq Stock MarketUnited States $4.2tn
MicrosoftSoftware & Cloud MSFTNasdaq Stock MarketUnited States $3.8tn
AmazonE-Commerce & Cloud AMZNNasdaq Stock MarketUnited States $2.9tn
TSMCSemiconductor Foundry TSMNew York Stock ExchangeTaiwan $2.0tn
BroadcomSemiconductors & infrastructure software AVGONasdaq Stock MarketUnited States $1.8tn
Saudi AramcoOil & Gas 2222Saudi Exchange (Tadawul)Saudi Arabia $1.7tn
# the same table, as data GET /api/v1/companies?limit=8 { "id": "apple", "name": "Apple", "ticker": "AAPL", "exchange": "nasdaq", "country": "united-states", "sector": "Technology", "market_cap_usd_bn": 4665.8, "links": { "self": "/api/v1/companies/apple", "graph": "/api/v1/graph/companies/apple" } }

Full dataset inventory and methodology on the Data page.

API

The whole site is an API

Open, versioned, no key required. JSON with CORS enabled — usable from a browser, a backend, or an AI agent tool call.

GET /api/v1/companies GET /api/v1/companies/apple GET /api/v1/markets GET /api/v1/assets?type=Crypto GET /api/v1/funds GET /api/v1/countries/united-states GET /api/v1/research GET /api/v1/graph/companies/apple GET /api/v1/schema GET /api/v1/search?q=bank

Try it now — no signup:

curl -s https://finance.foundation/api/v1/companies/apple

API documentation Developer quickstart

Finance for AI

Built agent-first

Give AI agents structured access to financial knowledge: stable entities, typed relationships, honest provenance and a machine-readable index at /llms.txt.

AI financial analyst

Ground an analyst agent in clean entities and relationships instead of scraped HTML.

Company & market intelligence

Resolve "which company is this" with identifiers, then traverse the graph for context.

Automated research

One GET returns the full dataset — small enough for a context window, structured enough to reason over.

How agents use Finance Foundation →

Standards

A common language for financial data

Identifiers (LEI, ISIN, MIC, FIGI), classifications, and the Finance Foundation Schema — open definitions of financial entities and the relationships between them.

LEI — legal entityISIN — securityMIC — venueFIGI — instrumentISO 4217 — currencyFF Schema v0.1 — entities & relationships

Explore standards →

Get Started

Build on Finance Foundation

Use the open API in your app or agent. Read the research. Adopt the schema. The foundation layer is free and open — the ecosystem grows on top.