Simple JSON APIs for builders.
A home for documented, key-based APIs. Finance is live today, starting with Indian mutual fund data. More will follow, in the order you ask for them.
APIs
Grouped by family. Each API has its own docs, key form and status page.
Finance APIs
Market and fund data from public disclosures. Today: the Mutual Fund API with NAV, history, 52-week and CAGR figures, and month-end portfolio holdings.
Open Finance → Your ideaWhich API do you need?
Tell us the data you wish had a clean API. Requests decide what we build next.
Request an API →The rules every API follows
So that the second API you use feels like the first.
Plain JSON
Predictable URLs, one response envelope and standard HTTP status codes, with errors in a documented format.
Key-based access
Send a key in a header. Each key has its own quota and can be revoked at any time.
Sources named
Each API says where its data comes from, how often it refreshes, and what is not covered yet.
Honest status
A status page per API, and no uptime promise we cannot keep during the beta.
Start with finance, or tell us what is next
Get a mutual fund API key in a minute, or ask for the API you need.
Get a free API key