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OptiGateSelf-hosted MCP gateway with token-sparing tool retrieval

One endpoint for all your MCP servers. Clients retrieve only the LLM tools they actually need — optionally reranked by a decision model.

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Decision-model reranking
GitHub
OptiGate admin UI with server cards and tool search

Token-sparing retrieval

search_tools returns the top-k relevant tool cards per query (~200–800 tokens regardless of registry size). LLM context usage stays flat whether you manage 20 or 2,000 tools.

Decision-model reranking

Optional mode="decision" hands the candidate pool to a decision model (Jev via OpenRouter, or any OpenAI-compatible endpoint) — semantic reranking with honest "no matching tool" answers.

MCP facade

The registry itself is an MCP server. Any MCP client (Claude, ChatGPT, Hermes, coding agents) gets every managed server through a single Streamable HTTP endpoint.

Governance built in

Scopes (global / tenant / private), approval workflow, full audit trail, per-tenant credential isolation, SSRF protection, rate limiting.

Flexible auth

Keycloak JWT in production, local username/password login for homelabs, dev mode for local testing.

Self-hosted & MIT

Docker Compose stack, Postgres persistence, admin UI in DE/EN/FR. Your tool traffic and credentials never leave your infrastructure.

What is OptiGate? ​

OptiGate is a self-hosted MCP (Model Context Protocol) gateway and server registry. Without a gateway, every AI agent needs every MCP server registered individually — and every tool schema lands in the LLM context, exploding token costs. OptiGate flips this around:

MCP Client ──▶ POST /mcp ──▶ OptiGate ──▶ managed MCP servers (HTTP/SSE/stdio)
                  search_tools + execute_tool only
  1. The agent calls search_tools(query, k) and gets the k most relevant tool cards.
  2. It executes one via execute_tool(server_id, tool_name, args) — scope-checked, args-validated, audited.

Head to installation to run it in five minutes, or read how decision-model reranking closes the paraphrase gap of keyword search.

MIT licensed · Self-hosted MCP gateway with token-sparing tool retrieval

OptiGate contributors