TigZig offers a range of free financial and analytics APIs, many also exposed as MCP servers so AI agents can call them as tools. The current set includes:
- MF NAV API - daily NAV for 38,000+ Indian mutual fund schemes (AMFI).
- Vigil API - India corporate red-flag signals from NSE across 7 tables.
- Tremor - global macro, credit and markets indicators (FRED, NY Fed, FDIC, NCUA, RBI, ECB and more).
- Yahoo Finance - financials, prices and market data (~15 endpoints).
- QRep / QuantStats / FFN - security and portfolio performance and risk reports.
- Technical Analysis - indicator plus chart-read technical reports.
- Database Query - read-only SQL over Postgres and DuckDB.
- Markdown to PDF - report rendering.
The full catalog, with endpoints and MCP cards, is the unified hub at https://www.tigzig.com/apis.
You do not have to pick one. Point an AI agent with web access at api.tigzig.com and ask in plain English. That address is a machine-readable catalog: the agent reads it, works out which service holds the dataset, opens that service's OpenAPI spec and builds the call itself, including the bulk-file download where there is one. Works with Claude, Claude Cowork, ChatGPT Work and AI coders; plain ChatGPT without web access cannot reach it.
Building something like this? How I work covers the rates, the availability and what I take on.