# robinhood-chain-api > Hosted market-data API for Robinhood Chain: Stock Tokens with Chainlink + DEX premium/discount, memecoin launchpads, portfolios, cross-venue spreads, real-time firehose. Free + x402-metered. robinhood-chain-api is an open-source repository by nirholas, part of the three.ws ecosystem. ## Docs - [README](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md): install, usage and reference - [Why this exists](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#why-this-exists) - [Endpoints](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#endpoints) - [Quickstart](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#quickstart) - [Architecture](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#architecture) - [Local development](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#local-development) - [Testing](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#testing) - [Deploy](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#deploy) - [Environment variables](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/README.md#environment-variables) - [AGENTS.md](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/AGENTS.md): guidance for coding agents - [Full text for LLMs](https://github.com/nirholas/robinhood-chain-api/blob/HEAD/llms-full.txt): the README inlined ## Project - [Source](https://github.com/nirholas/robinhood-chain-api) - [Issues](https://github.com/nirholas/robinhood-chain-api/issues) - [Discussions](https://github.com/nirholas/robinhood-chain-api/discussions) - [Homepage](https://nirholas.github.io/robinhood-chain-api/) - [three.ws](https://three.ws): the platform this is part of - [All repositories by nirholas](https://github.com/nirholas/nirholas#readme)