# Databento

> Databento is a market data platform delivering historical and live financial market data through a single, normalized API. It covers equities, futures, and options across major venues with full order book depth (MBO/MBP), trades, OHLCV bars, statistics, and reference data. Historical data is served over a REST HTTP API at hist.databento.com (HTTP Basic auth: your db- prefixed API key as username, empty password; pay-as-you-go billed per byte streamed). Live data is delivered over a low-latency raw TCP binary protocol using Databento Binary Encoding (DBN) with CRAM challenge-response authentication. Official Python, C++, and Rust client libraries wrap both surfaces.

Generated by API Evangelist from the machine-readable artifacts in
https://github.com/api-evangelist/databento (databento.com publishes no llms.txt;
its SPA returns the HTML shell for /llms.txt).

## APIs

- [Historical Timeseries API](https://databento.com/docs/api-reference-historical/timeseries/timeseries-get-range): Stream historical market data (DBN, CSV, or JSON) for a dataset, symbols, schema, and time range. Base: https://hist.databento.com/v0
- [Metadata API](https://databento.com/docs/api-reference-historical/metadata/metadata-list-datasets): List publishers, datasets, schemas, fields, and unit prices; pre-compute record count, billable size, and cost before running a query.
- [Symbology API](https://databento.com/docs/api-reference-historical/basics/symbology): Resolve symbols between raw symbol, instrument ID, parent, and continuous contract systems.
- [Batch API](https://databento.com/docs/api-reference-historical/batch/batch-submit-job): Submit asynchronous jobs that materialize large historical requests into downloadable flat files (re-downloadable for 30 days).
- [Live Streaming API](https://databento.com/docs/api-reference-live): Low-latency live market data over a raw TCP binary protocol (DBN); consumed via the official Python, C++, and Rust clients.
- [Reference API](https://databento.com/docs/api-reference-reference): Security master, corporate actions, and adjustment factors.

## Specs

- [Official platform OpenAPI 3.1](https://hist.databento.com/openapi.json): the provider-published spec (183 operations, includes portal endpoints)
- [Timeseries OpenAPI](https://raw.githubusercontent.com/api-evangelist/databento/refs/heads/main/openapi/databento-timeseries-api-openapi.yml)
- [Metadata OpenAPI](https://raw.githubusercontent.com/api-evangelist/databento/refs/heads/main/openapi/databento-metadata-api-openapi.yml)
- [Symbology OpenAPI](https://raw.githubusercontent.com/api-evangelist/databento/refs/heads/main/openapi/databento-symbology-api-openapi.yml)
- [Batch OpenAPI](https://raw.githubusercontent.com/api-evangelist/databento/refs/heads/main/openapi/databento-batch-api-openapi.yml)
- [Reference OpenAPI](https://raw.githubusercontent.com/api-evangelist/databento/refs/heads/main/openapi/databento-reference-api-openapi.yml)

## Docs

- [Documentation](https://databento.com/docs)
- [Authentication](https://databento.com/docs/api-reference-historical/basics/authentication)
- [Versioning](https://databento.com/docs/api-reference-historical/basics/versioning)
- [Standards and conventions (DBN)](https://databento.com/docs/standards-and-conventions/databento-binary-encoding)
- [Release notes](https://databento.com/docs/release-notes)
- [Pricing](https://databento.com/pricing)
- [Status page](https://status.databento.com)
- [Roadmap](https://roadmap.databento.com)
- [Support](https://databento.com/support)
- [GitHub](https://github.com/databento)

## SDKs

- [databento (PyPI)](https://pypi.org/project/databento/): official Python client
- [databento (crates.io)](https://crates.io/crates/databento): official Rust client
- [databento-cpp (GitHub)](https://github.com/databento/databento-cpp): official C++ client
- [dbn / databento-dbn](https://github.com/databento/dbn): DBN encoding libraries and CLI