private beta · MCP server live · EU-hosted

Sovereign code context for your AI agents.

Prometheus is an EU-hosted MCP server and indexer worker that gives your AI agents typed, scoped, governable access to your codebase. Bring your own model — Claude, Gemini, OSS via vLLM. No data leaves the EU without your per-tenant opt-in.

Read the docsJoin the betaprivate repo
Embedding model
voyage-code-3
1024 dim · code-tuned
Vector store
Supabase pgvector
eu-central-1 · HNSW
Runtime
Railway EU + Fluid
europe-west4 · Fastify

What is Prometheus

Three pieces, one substrate. Each is replaceable; together they let an agent reason about a real codebase without dragging the entire repo through every prompt.

Code context

Tree-sitter parsing, semantic chunking on symbol boundaries, hybrid retrieval (BM25 + vector + 1-hop symbol graph). Not naive sliding-window RAG.

How retrieval works →

Agent runtime

MCP server with six typed tools (search_code, get_symbol, find_references, expand_context, get_file, list_changed_since). Stdio + HTTP-SSE.

Browse the tools →

EU sovereignty

Supabase eu-central-1, Railway europe-west4, Resend eu-west-1. Per-tenant region mode pins which providers may ever see your code.

Region modes explained →

How it fits in

Your IDE talks to a local MCP client. The client speaks MCP-over-stdio to Prometheus, which fans out to the hosted indexer-worker on Railway EU and Supabase pgvector in Frankfurt.

  1. Your IDE
    Claude Desktop · Cursor · Augment
  2. MCP client
    stdio · 6 tools
  3. Prometheus MCP
    TypeScript · Node 20
  4. Indexer worker
    Railway europe-west4
  5. Supabase pgvector
    eu-central-1 · HNSW

Status & roadmap

We ship in narrow vertical slices and document each one in the changelog. The pieces below are public-beta-quality; the rest is on the way.

Live

  • Indexer worker on Railway EU (Fastify, Voyage embeddings 1024-dim)
  • MCP server skeleton with six typed tools (SQLite + Supabase adapters)
  • Retrieval benchmark harness (CodeSearchNet, Voyage / OpenAI / Mistral)

In progress

  • api.prom.codes reverse proxy with per-tenant token auth
  • app.prom.codes dashboard (Tail Admin Pro, Supabase Auth)
  • Prometheus CLI and VS Code plugin (Augment replacement)

Tech & licensing

Proprietary, EU-hosted, no data leaves the EU without a per-tenant opt-in. Embeddings, vectors, symbol graphs and source snippets stay inside the Supabase project you point us at. Provider keys are tenant-scoped; you can rotate or revoke any time.

  • TypeScript · Node 20
  • Next.js 15 · React 19 · Tailwind 4
  • Supabase · pgvector · RLS
  • Voyage · OpenAI · Mistral embeddings
  • Tree-sitter · semantic chunking
  • Fastify · Railway EU
  • MCP 1.x stdio + HTTP-SSE

Join the beta

We're onboarding agentic-coding teams in small waves. Drop your email — we'll send setup instructions and an API key when your tenant is ready. No marketing, no tracking, no third-party scripts.