Symfony AI Symfony AI & MCP Hackathon
Oct 26 – Nov 22, 2026· Online· Free· Solo or team of two· Symfony AI & PHP MCP SDK 1.0.0 pre-release

Make PHP think.

Four weeks to push Symfony AI and the official PHP MCP SDK as far as they go — LLMs, agents, RAG, MCP servers and clients.

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26
Days
17
Hours
22
Minutes
23
Seconds · until submissions close
8 hackers · 8 teams in
FP Force Push @ 2AM solo O Odiseo solo D Demokratis solo AA Archive Alchemy solo TH Team Hatfield solo NO Night Owl solo V Void solo SR Shiny Red Apples solo FP Force Push @ 2AM solo O Odiseo solo D Demokratis solo AA Archive Alchemy solo TH Team Hatfield solo NO Night Owl solo V Void solo SR Shiny Red Apples solo

What the jury looks for

No fixed topics, and no point building for the jury. Show what Symfony AI and MCP let you do that you could not do before.

01
A creative idea

Something surprising, useful or just fun — more than another chatbot. Build what you would want to exist, not what you think the jury wants to see.

02
It actually works

A real, working demo, not a concept of what it could do one day. Bonus if a juror can clone the repository and run it themselves.

03
What it unlocked

What did Symfony AI and the PHP MCP SDK let you do that you could not do before? Use the components and the protocol in ways nobody expected.

04
Craft

Code you would merge: idiomatic Symfony, typed, tested where it counts, and a README that gets a stranger from git clone to a running demo in five minutes.

Pre-release

Break it before 1.0.0 ships.

This hackathon runs on the Symfony AI 1.0.0 pre-release — including the official PHP MCP SDK (mcp/sdk), which is heading for 1.0 right alongside it. Four weeks of people building real things is the hardest they have ever been pushed — and that is the point.

So when something breaks, misbehaves, or simply reads wrong at three in the morning: that is a result, not a detour. A reproduction from a real project is worth more than any amount of testing in a vacuum — and what gets reported now is what 1.0.0 ships without.

Hit a bug in Symfony AI?
github.com/symfony/ai/issues
Open an issue →
Hit a bug in PHP MCP SDK?
github.com/modelcontextprotocol/php-sdk/issues
Open an issue →

The brief

Stack
Symfony AI — any provider, any store — and the PHP MCP SDK (mcp/sdk) for MCP servers and clients. Tag what you use — RAG, MCP, Deep Research or your own.
Credits
Use Hugging Face Inference Providers in your project — Hugging Face sponsors a $20 coupon per developer for prototyping.
Team
Solo or in a pair. Sign in with SymfonyConnect, share an invite code.
Feedback
Running on the Symfony AI 1.0.0 pre-release, incl. the PHP MCP SDK — file what breaks at github.com/symfony/ai/issues or github.com/modelcontextprotocol/php-sdk/issues.
Deliverable
A public repository anyone can clone and run, and a 90-second video of the real thing, before Nov 22 · 18:00 CET.

Sponsors

Ship it by
November 22.

Submit your project