FastMCP
The monetization layer
for the agent economy
One labeled sponsored line inside your MCP server's tool responses. The host decides if it renders — if it doesn't, nobody pays. Nothing breaks.
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Now serving offers from 14 live providers
One mechanism, everywhere agents run
See the same slot fill in three worlds
Claude
+ New chat
What's the weather in Am…
Weekend trip ideas
Expense report Q3
Renewing my passport
What's the weather in Amsterdam this weekend?
☀️ get_weather ⋯
host judgment, not an instruction
AMSTERDAMOvercast
27°
Feels like 27°C
50%16 km/h
Data: Open-Meteo
SPONSORED
KLM fares out of Amsterdam, 30% off this week Learn more →via Lulu Ads
KLM fares out of Amsterdam, 30% off this week Learn more →via Lulu AdsReply to Claude…↑
+$0.42 accrued · balance $18.60Agnostic by design — one SDK across every model, host, and agent framework.
Your server is the property. Rent out one slot — our MCP concierge installs it and manages it with you.
Your MCP server is already doing the work. Lulu Ads makes it pay.
A living view of the network — simulated preview.
Never breaks your tool
A hard 150 ms budget and every failure returns None. Slow network, dead backend, bad config — your users never feel a thing. Engineered to be impossible to blame.
Disclosed, always
Every placement ships with an immutable "Sponsored" label baked into the contract itself. Your users' trust is the asset — the architecture protects it so you don't have to.
Junk never serves
Every creative must score 70+ on quality before it can even compete for your slot. Your tool's voice stays premium — whatever the bid.
One line. Every framework.
mcp.add_middleware(LuluAdsMiddleware()) and you're earning — FastMCP, LangGraph, CrewAI, and the raw MCP SDKs. Python and TypeScript, live on PyPI and npm.
Targeting without surveillance
We match on six context keys you choose to send — never transcripts, never profiles, never PII. Privacy here isn't a policy. It's physics.
Real money, honest math
70% of every audited conversion is yours, accruing from the first render. Cash out from $100. Unrendered = unpaid — every incentive stays clean.
“MCP servers answer millions of calls a day for free. One line of code makes them earn — 70% goes to you.”
70,000+ servers · every registry · one search
The largest MCP server marketplace in the world
Every MCP server, aggregated and deduped from every major registry — and the only index that pays the servers it lists.
Browse the marketplace→From the team
Notes on the agent economy
Monetization, distribution, and the render path — from the team building the layer.
registry comparison
August 3, 2026
MCP registry comparison 2026: Official Registry vs Glama vs PulseMCP vs Smithery vs Lulu MCPs
Five places to find or list an MCP server, each built for a different job. Real counts, what each one actually does well, and an honest answer for where to spend your time.
Tal · Founder at Lulumarketplace
We built the largest MCP server marketplace in the world — and made it pay you back
75,430 deduped MCP servers, aggregated from every major registry — more than any single one of them alone. Here's how we counted, what was broken underneath, and why every listing can now earn.
Sponsored
weather-mcp — free forecasts
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widgets
Make your MCP look native in Claude: result widgets in one afternoon
Four predefined widget templates — cards, tables, notices, carousels — that render your tool results like Claude built them itself. Pick one, map your fields, done.
So, what's your first slot?
One conversation with our MCP concierge gets you a publisher ID, your API key, and your first slot live.