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The Chronos API serves real-time and historical spot market data for tokens on Solana, Base, BNB Smart Chain and Robinhood Chain. Use it to build trading bots, terminals, dashboards, alerts and agents.

Get an API key

Every request needs a key. Here is how to get one.

Quickstart

Make your first request and open your first stream in a few minutes.

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What you can read

Every response follows the same conventions: camelCase field names, timestamps in Unix milliseconds, and exact decimal strings for money. See Reading responses.

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Base URLs

The OpenAPI document needs no key. Use it to generate a client in your language.

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Call it from your backend

Your API key is a secret. Call the API from a server you control, never from browser or mobile code. The API sends no CORS headers, and a browser cannot set the header the stream handshake needs. See Authentication.

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Next steps

Authentication

Send your key on REST requests and on the stream handshake.

Reading responses

Timestamps, money objects, decimals and percentages.

Errors and retries

Every error code, and which ones to retry.

Connecting to streams

Subscribe to live trades, candles and token updates.