Ravendb MCP server

RavenDB MCP

A local, read-only MCP diagnostics server for RavenDB. Point it at a cluster and your AI agent can inspect cluster, database, index, task, storage, and performance state, plus logs, support packages, and your data, across 21 read-only tools.

Quick start

Launch it with npx (Node.js), dnx (.NET SDK), or a prebuilt binary from Releases, then add it to your client. Set RAVENDB_URLS to your cluster; the examples use http://localhost:8080.

Claude Code

claude mcp add ravendb --scope user --env RAVENDB_URLS=http://localhost:8080 -- npx -y @ravendb/mcp

Or install the plugin, which prompts for your cluster URL:

/plugin marketplace add ravendb/ravendb-mcp
/plugin install ravendb-mcp@ravendb

Claude Desktop

Download ravendb-mcp-.mcpb from Releases, then install it under Settings > Extensions > Advanced settings > "Install Extension…" (Anthropic's guide). It prompts for your cluster URL, so there is no config to edit and no Node or .NET needed. Config-file setup is in INSTALL.md.

Codex

Add to ~/.codex/config.toml:

[mcp_servers.ravendb]
command = "npx"
args = ["-y", "@ravendb/mcp"]
env = { RAVENDB_URLS = "http://localhost:8080" }

Cursor

Click the button (installs with http://localhost:8080; edit for another cluster), or add .cursor/mcp.json:

{
  "mcpServers": {
    "ravendb": {
      "command": "npx",
      "args": ["-y", "@ravendb/mcp"],
      "env": { "RAVENDB_URLS": "http://localhost:8080" }
    }
  }
}

Then ask the agent “list my RavenDB databases.” Any of these can use dnx RavenDB.Mcp --yes or a binary path in place of npx -y @ravendb/mcp. Secured (HTTPS) clusters, other OSes, and the full configuration reference are in INSTALL.md.

Features

Developer experience

• One-line install with npx, dnx, or a prebuilt binary.
• 21 tools, one per subject area, each with parameters to select what you need (reduced from 74).
• Version-aware RQL docs are served as rql:// resources; a failed query returns the parser error and where to look.

Safety

• Read-only: no write, patch, or delete tools, and mutating queries are rejected.
• Connection-string secrets (passwords, cloud keys, SAS tokens, AI-provider keys, certificates) are masked in the returned JSON.
• Access is scoped to the client certificate's RavenDB permissions.
• getdocumentdata and run_query return real cluster data into the agent's context — you choose which cluster to expose. See SECURITY.md.

Context-window friendly

• Progressive disclosure: tools return an overview by default and drill into detail on request.
• Results are paged: run_query takes start and pageSize (up to 128 rows), and the list tools take pageSize.
• Log exports and debug packages are written to an artifact file on disk; the tool returns its path and byte size, not the contents.
• Query results omit per-document metadata unless you request it.

Runs anywhere

• Distributed via npm, NuGet, GitHub Releases, and the MCP Registry.
• Self-contained binaries for Windows, macOS, and Linux (x64 and arm64), with no runtime to install.
• Run a separate instance per cluster for multi-cluster setups.

Configuration

Shortened. The full README is on GitHub.