# PolyDB

> PolyDB is a multi-model database with 16 data providers -- SQL, Document, KV, Vector, Graph, Stream, Spatial, TimeSeries, Analytics, S3, Memory, Temporal, FullText, Blob, Iceberg, and Transaction -- all accessible through a single MCP server at beta.polydb.dev. AI agents can store documents, run vector similarity search, query graphs, and persist agent memory without managing separate infrastructure for each data model.

## Getting started

- [Sign up](https://beta.polydb.dev) -- create an account and get an API token
- [Pricing](https://polydb.dev/pricing) -- one-time and subscription cloud plans

## MCP integration

- [SKILL.md](https://polydb.dev/SKILL.md) -- Anthropic Agent Skills spec for PolyDB: connection command, authentication, the 16 providers, the 3-tier tool model (discrete tools / search_schema / execute_workflow), five worked examples, error recovery, threat model, boundaries
- [Full reference dump](https://polydb.dev/llms-full.txt) -- concatenation of README, SKILL.md, and working examples; one fetch gets an agent the entire integration surface
- Per-request database scoping: every tool accepts optional `database` parameter; resolves to `X-PolyDB-Database` header / tenant default / `"polydb"`. See "Named databases" section in the full reference dump for the resolution chain, worked example, and management endpoints.