finance-foundation

Open financial reference data: companies with LEI/ISIN/FIGI, markets, funds, graph, live series.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Open financial reference data: companies with LEI/ISIN/FIGI, markets, funds, graph, live series.

    How to connect

    How to connect finance-foundation to Claude

    The server address to paste into Claude settings:

    https://finance.foundation/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect finance-foundation to ChatGPT

    The server address to paste into ChatGPT settings:

    https://finance.foundation/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect finance-foundation to Cursor

    The server address to paste into Cursor settings:

    https://finance.foundation/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (7)

    Raw names from tools/list. Only developers need these.

    lookupGet one financial entity by type and id (slug). Returns the full structured record including external identifiers (LEI/ISIN/FIGI) for companies. Data is seed-0.7 · marketcap-1 · 2026-08-30 — approximate reference values from public sources, versioned, NOT real-time (live_data series refresh every 3 hours). License CC BY 4.0. Correct uses: entity resolution, classification, relationships, jurisdiction/venue context. For live quotes or legal text go to the primary sources each entity links.
    listList entities of one type, optionally filtered. Companies filter by sector/country/q; assets by type (Crypto|Index|Bond|Currency|Commodity). Returns up to `limit` records (default 25).
    searchFree-text search across all entity types (companies, markets, assets, funds, banks, countries, research). Returns grouped matches with links.
    resolve_identifierResolve a ticker, LEI, ISIN, FIGI, MIC code or name to entities. The entity-resolution tool: 'US0378331005' → Apple with all identifiers. Matches are ranked (exact identifier > ticker > name).
    graphKnowledge-graph neighborhood of an entity: nodes and typed edges (lists_on, domiciled_in, managed_by, sector_peer…). Use to traverse from a company to its exchange, jurisdiction, funds and peers.
    ingest_textExtract financial entities and relationships from unstructured text into Finance Foundation Schema v0.1 JSON (companies, markets, assets, funds, banks, countries, indicators + typed relationships + unresolved_identifiers). LLM-powered, validated (taxonomy, ISIN checksums, LEI/MIC formats). Read-only transform: output goes to the caller only and is NEVER added to the Finance Foundation dataset. Limit 6000 chars.
    live_dataLatest reference values (refreshed every 3 hours): crypto (BTC/ETH/SOL/XRP/BNB/ADA/USDT/USDC/DAI), FX (EUR/USD, USD/JPY, GBP/USD, USD/CNY, USD/CHF, AUD/USD, USD/CAD, USD/INR, USD/BRL), ECB main refinancing rate, US 10Y Treasury yield, US CPI YoY. Each carries its source and observation date — NOT real-time ticks.