> For the complete documentation index, see [llms.txt](https://docs.prestd.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.prestd.com/releases/v2.1.0.md).

# v2.1.0

Released: July 9, 2026

[GitHub tag](https://github.com/prest/prest/releases/tag/v2.1.0) · [Download binaries](https://github.com/prest/prest/releases/tag/v2.1.0)

**v2.1.0** adds native [Model Context Protocol (MCP)](https://modelcontextprotocol.io/) support over HTTP ([#977](https://github.com/prest/prest/pull/977)), closing [#959](https://github.com/prest/prest/issues/959). MCP is an open standard for connecting AI apps and agents to tools and data; pREST exposes a read-only endpoint at `/_mcp` so clients can discover and query your SQL catalog (PostgreSQL family today) through the same server that already serves CRUD, custom scripts, and multi-database routes.

* **Binary:** [v2.1.0 release assets](https://github.com/prest/prest/releases/tag/v2.1.0)
* **Docker:** `prest/prest:v2.1.0`
* **Go install:** `go install github.com/prest/prest/v2/cmd/prestd@v2.1.0`

Upgrading from [v2.0.0](/releases/v2.0.0.md) is a drop-in update — no configuration changes are required unless you want to use the new endpoint.

See the [MCP over HTTP guide](/get-started/mcp-over-http.md) for full usage, tool reference, and examples. For AI clients (Cursor, Claude Desktop), start at [AI and MCP](/ai.md) and install the [pREST MCP Adapter](/ai/install-prest-mcp.md) via [`brew install prest/tap/prest-mcp`](/get-prest/start-with-homebrew.md).

***

## Highlights

### MCP over HTTP ([#977](https://github.com/prest/prest/pull/977))

**MCP (Model Context Protocol)** connects AI clients to tools over a standard protocol. pREST exposes a read-only MCP endpoint at `/_mcp` on the same server process. The MCP surface reuses the existing request pipeline — deployment model, auth, ACL, and database routing behave the same as the rest of the API.

| Method | Endpoint | Purpose                                                    |
| ------ | -------- | ---------------------------------------------------------- |
| `GET`  | `/_mcp`  | Discovery payload with server metadata and available tools |
| `POST` | `/_mcp`  | JSON-RPC requests for MCP operations                       |

Supported JSON-RPC methods: `initialize`, `tools/list`, `tools/call`.

Read-only tools include generic discovery (`prest.list_databases`, `prest.list_schemas`, `prest.list_tables`, `prest.describe_table`, `prest.select_table`) and schema-aware per-table select tools (`prest.select.{database}.{schema}.{table}`) generated from catalog metadata with typed input schemas.

Key properties:

* Read-only by design in v2.1.0
* Auth and ACL inherited from the HTTP stack
* Permission-aware tool discovery and execution
* Multi-database alias support in tool names and arguments
* Maximum 100 rows per select

***

## Changes since v2.0.0

| Commit    | PR                                              | Summary                                                                                   |
| --------- | ----------------------------------------------- | ----------------------------------------------------------------------------------------- |
| `f5e5e5e` | [#977](https://github.com/prest/prest/pull/977) | Native MCP support over HTTP — `/_mcp` endpoint, schema-aware tools, auth/ACL integration |

***

## Upgrading from v2.0.0

No breaking changes. Deploy the new binary or Docker image and optionally point MCP clients at `https://your-prest-host/_mcp`.

If you use authentication, ensure MCP clients send the same credentials your REST clients use — `/_mcp` is protected when auth is enabled.

***

## Documentation links

* [AI and MCP](/ai.md)
* [MCP over HTTP guide](/get-started/mcp-over-http.md)
* [Install pREST MCP Adapter](/ai/install-prest-mcp.md)
* [Use with Cursor](/ai/cursor.md) · [Claude Desktop](/ai/claude-desktop.md)
* [PostgreSQL to AI agent](/postgres-to-ai-agent.md)
* [Start with Homebrew](/get-prest/start-with-homebrew.md) · [Distribution](/get-prest/distribution.md)
* [v2.0.0 release notes](/releases/v2.0.0.md)
* [Multi-database guide](/get-started/multi-database.md)
* [Permissions](/get-started/permissions.md)
* [Auth](/api-reference/auth.md)