Index MCP Server

MCP instruction indexing server for AI assistant governance: search, CRUD, validation, usage.

Local serverstdioTypeScript

What is the Index MCP server?

If you already use Index, the index mcp server is the piece that lets your assistant work with it directly. MCP instruction indexing server for AI assistant governance: search, CRUD, validation, usage.

What the server does

Index Server is a central knowledge base that AI agents connect to via the Model Context Protocol (MCP). Agents search, read, and contribute knowledge that persists across sessions and repositories — building a governed catalog with versioning, audit trails, and approval workflows. An optional admin dashboard provides real-time monitoring of catalog health, usage analytics, and drift detection.

  • MCP protocol compliance — — Full JSON-RPC 2.0 over stdio with schema validation
  • 50+ tools — for search, CRUD, governance, analytics, messaging, and feedback
  • Semantic search — — Optional embedding-based similarity search (HuggingFace models)
  • Bootstrap security — — Mutations gated until human confirmation on fresh installs
  • Cross-repo knowledge promotion — — Validate locally, then promote proven patterns to the shared catalog
  • Governance workflows — — Ownership, versioning, approval status, and deterministic governance hashing

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Prompts — setup_index_server, configure_index_server, verify_index_server
  • Resources — index://guides/quickstart, index://guides/client-config, index://guides/verification
  • Cross — repo knowledge promotion** — Validate locally, then promote proven patterns to the shared catalog
  • Panel — Description
  • Overview — Server health, uptime, system status
  • Instructions — Catalog browser with usage counts and governance status
  • Monitoring — Performance metrics and error rates
  • Maintenance — Backup, repair, and catalog operations
  • Graph — Mermaid dependency graph of instructions
  • Document — Purpose
  • Verify — The Verify tool exposed by this server

Installation

@jagilber-org/index-server on npm is all you need. Most clients run it directly, so configuration is a few lines and a restart.

Credentials and setup notes

Configuration is passed through the environment: INDEX_SERVER_DIR, INDEX_SERVER_LOG_LEVEL, INDEX_SERVER_SEMANTIC_ENABLED, GITHUB_TOKEN. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Where it fits

Plenty of AI and media services servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Index's toolset — Prompts, Resources, Cross and 8 more — is a fair guide to whether it matches your workflow. It is maintained by jagilber-org; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • With 11 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Index.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
Promptssetup_index_server, configure_index_server, verify_index_server
Resourcesindex://guides/quickstart, index://guides/client-config, index://guides/verification
Crossrepo knowledge promotion** — Validate locally, then promote proven patterns to the shared catalog
PanelDescription
OverviewServer health, uptime, system status
InstructionsCatalog browser with usage counts and governance status
MonitoringPerformance metrics and error rates
MaintenanceBackup, repair, and catalog operations
GraphMermaid dependency graph of instructions
DocumentPurpose
VerifyThe Verify tool exposed by this server.

How to install the Index MCP server

{
  "mcpServers": {
    "index": {
      "command": "npx",
      "args": ["-y", "@jagilber-org/index-server"],
      "env": {
        "INDEX_SERVER_DIR": "your-value",
        "INDEX_SERVER_LOG_LEVEL": "your-value",
        "INDEX_SERVER_SEMANTIC_ENABLED": "your-value",
        "GITHUB_TOKEN": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
INDEX_SERVER_DIRFilesystem location the server is allowed to use.Optional
INDEX_SERVER_LOG_LEVELConfiguration value read at startup.Optional
INDEX_SERVER_SEMANTIC_ENABLEDConfiguration value read at startup.Optional
GITHUB_TOKENCredential the server authenticates with.Yes

Example prompts to try

  • Use Index to Prompts.
  • Use Index to Resources.
  • Use Index to Cross.

Frequently asked questions

It connects Index to MCP-compatible AI assistants such as Claude and Cursor, exposing 11 tools (Prompts, Resources, Cross, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Index directly.