# Coral

> Coral is a SQL query layer for AI agents. It gives agents governed, read-only access to data across any API, database, or file system using standard SQL — no custom integrations, ETL, or glue code required.

Coral is open-source (Apache 2.0) and self-hosted: queries, results, and source data never leave your infrastructure.

## Key capabilities

- Query across any combination of data sources with standard SQL JOINs
- Handles authentication, authorization, pagination, rate limiting, and schema mapping automatically
- Column-level access controls and per-agent scoping
- Works over MCP (Model Context Protocol) or CLI
- Self-learning context that builds semantic hints from query patterns
- 27% more accurate agent responses, 72% lower AI costs vs source-level MCPs (benchmark data)

## Pricing

- **Open Source**: Free forever (Apache 2.0). Full query engine, unlimited sources/agents/queries, self-hosted, community support.
- **Team**: $249/month + $0.005/query above 50,000. Hosted on Coral, admin tools, social sign-in, priority support.
- **Enterprise**: Custom pricing. SAML/SCIM, advanced RBAC, audit logs, custom connectors, SLAs, named support.

## Data privacy

Coral runs on your infrastructure. It does not ingest, store, or forward your data, and does not use it to train AI models. ISO 27001:2022 certified, GDPR compliant. Zero persistence by default.

## Links

- Documentation: https://withcoral.com/docs
- GitHub: https://github.com/withcoral/coral
- Blog: https://withcoral.com/blog
- Contact: https://withcoral.com/contact
- Data privacy: https://withcoral.com/data-privacy
- Terms of service: https://withcoral.com/terms
- Privacy policy: https://withcoral.com/privacy

## Company

Coral is built by Phoebe Technology Limited, a company incorporated in England and Wales. Contact: legal@withcoral.com.