M uefnmcp.com
UEFN island with glowing MCP data flows
MCP-as-a-Service for UEFN Verse

Your agent, grounded in
real Verse.

A hosted MCP endpoint for UEFN developers. Plug your API key into Claude Code, Cursor, or any MCP client — and get grounded search, live API signatures, and real UEFN compile verification without running anything locally.

add to Claude Code
claude mcp add uefnmcp \
  --env VERSEISLAND_API_KEY=uefn_sk_... \
  --env VERSEISLAND_GATEWAY_URL=https://uefnmcp.com/mcp-api \
  -- uvx uefnmcp-connector

One command. Any MCP client. Grounds your agent in real Verse.

Grounded search Epic docs + live Verse API
Real compile Real UEFN, not guessing
Per-key metered Pay only for what you use
Any MCP client Claude Code, Cursor, custom agents

How it works

Your agent, powered by the real Verse stack

One API key. The full Verse Cortex toolchain. No infrastructure to run yourself.

MCP gateway data flow diagram
Step 1

Get your API key

Sign up with Discord, create a key in the dashboard. Free tier starts immediately — 200 search calls/day, no credit card.

Step 2

Add to your MCP client

One line in claude_desktop_config.json or your agent's MCP config. Works with Claude Code, Cursor, or any standards-compliant client.

Step 3

Ship Verse that compiles

Your agent calls search_verse_kb, get_verse_symbol, and compile_verse — grounded in Epic's real API, verified by a real UEFN build.

Available MCP tools

free
search_verse_kb
Semantic search across Epic docs + Verse API
free
get_verse_symbol
Full signature + doc-comment for any symbol
free
generate_verse_sample
AI-generated, digest-grounded code snippet
pro
compile_verse
Real UEFN compiler run
pro
compile_and_fix
Compile + Claude repair loop (up to 3 passes)
pro
generate_and_compile
Draft → compile → fix — returns verified Verse
studio
index_private_repo
Embed + index your GitHub repo into a private KB
studio
place_actor
Live relay: place device/actor in UEFN project
studio
screenshot_island
Live bridge: screenshot current UEFN viewport

Credit-metered tools (Pro/Studio): compile_verse=2cr, compile_and_fix=5cr, generate_and_compile=8cr, place_actor=3cr, screenshot_island=2cr, index_private_repo=10cr/kLOC

Install

Connect it to your AI in two minutes

uefnmcp-connector is a tiny local MCP server. It runs on your machine and proxies your AI's questions through the hosted Verse Cortex knowledge base — so your agent answers from real, current Epic docs and the indexed Verse API instead of guessing.

1

Get the connector

Run it with no install via uvx, or pip install it:

# no install — one-off run
uvx uefnmcp-connector

# or install it
pip install uefnmcp-connector
2

Get your API key

Sign in (free during beta), then create a uefn_sk_… key — it's shown once.

Sign in to get a key
3

Add it to your AI client

claude mcp add uefnmcp \
  --env VERSEISLAND_API_KEY=uefn_sk_your_key_here \
  --env VERSEISLAND_GATEWAY_URL=https://uefnmcp.com/mcp-api \
  -- uvx uefnmcp-connector

Restart your client and ask it a UEFN/Verse question — it'll call verse_kb_search / verse_symbol through your key. Source: uefnmcp-connector on GitHub.

Pricing

Start free. Pay for compile.

Search and grounding are free-tier. Compile credits are consumed only on real UEFN runs — no waste on failed calls.

🏝️ Free during Beta

Everything below is free during the beta launch window — all tiers unlocked, no credit card. Sign up now and lock founder pricing for 12 months when paid plans go live.

Free
$0
Forever free
  • 200 search calls / day
  • 100 symbol lookups / day
  • 5 AI code samples / day
  • Epic docs + Verse API search
  • No compile tools
  • No private indexing
Get started free
Most popular
Pro
$19/mo
100 compile credits · founder rate $12
  • 2,000 search calls / day
  • 50 AI code samples / day
  • 100 compile credits / mo
  • compile_verse & fix loop
  • generate_and_compile
  • Top up credits ($5 / 50cr)
Start Pro
Studio
$59/mo
500 compile credits · founder rate $39
  • Unlimited search calls
  • 500 compile credits / mo
  • Private repo indexing
  • Bring your own build machine
  • Working-island tools (place_actor, screenshot)
  • Team dashboard + per-key usage
Contact for Studio

Credits roll over month-to-month. No partial charges on failed compile jobs. All plans include full MCP tool list access (gated by tier).

Start building in 60 seconds

Sign in with Discord to get your free API key. No credit card required. Upgrade when you need compile credits.

By signing up you agree to our Terms and Privacy Policy. Free tier has no expiry.

Ready to go deeper?

Full tool reference, sequence diagrams, and integration guides in the docs.

Read the docs