Surface

The

Signal

Surface

The

Signal

Meridian Buildathon - Sep 14-27

Build With Nansen API.

Win $10,000 USDC.

Build With Nansen API.

Win $10,000 USDC.

Build With Nansen API.

Win $10,000 USDC.

Two weeks to build anything using Nansen API.
Ship a working demo and get a shot at $10K.

Two weeks to build anything using Nansen API.
Ship a working demo and get a shot at $10K.

Get Started ->

Start Trading ->

Trade Hyperliquid perps, track Smart Money, and stake HYPE - all in one place.

What to Build

Build whatever you want.
Ship something real.

Build whatever you want.
Ship something real.

Build whatever you want.
Ship something real.

Use any endpoint, build any tool. The stack and use case are yours to decide. Here are a few ideas:

Use any endpoint, build any tool. The stack and use case are yours to decide. Here are a few ideas:

Use any endpoint, build any tool. The stack and use case are yours to decide. Here are a few ideas:

SM Token Feed

Terminal that tracks live token flow across chains.

SM Token Feed

Terminal that tracks live token flow across chains.

SM Token Feed

Terminal that tracks live token flow across chains.

Nansen Aquarium

Turns wallet activity into bioluminescent sea creatures.

Thesis Desk

Write a trade thesis, it interrogates it against live data.

Thesis Desk

Write a trade thesis, it interrogates it against live data.

View All Endpoints ->

View All Endpoints ->

View All Endpoints ->

What You Can Win

Best builders take it home.

Stack Points,
Climb the Tiers

Best builders take it home.

🥇
1st Place

Win $10,000 USDC

🥈
2nd Place

Vibe Coder Pack: AirPods Max + Ledger + Keychron Q Pro

🥉
3rd Place

Sony WH-1000XM5 + Ledger

🏅
Honorable Mention

100,000 Nansen API Credits

How We Judge

Four things the judges care about.

Four things the judges care about.

Four things the judges care about.

Creativity beats complexity. A simple tool that runs beats an impressive one that doesn't.

Data Integration

25%

Nansen data drives the logic - not just appears on screen.
The deeper the integration, the stronger the score.

Functionality & Workability

25%

Live data loads. End to end. No crashes.
If it breaks in the recording, it doesn't qualify.

Creativity & Originality

25%

A use case nobody thought to build.
We've seen dashboards. Show us something we haven't.

Documentation & Submission

25%

Clean README. Followable recording. No narration needed. Another builder can run it in under 10 minutes.

How to Apply

Four steps to enter

Four steps to enter

Four steps to enter

No application. No team required. Just build and ship.

No application. No team required. Just build and ship.

Create an API key

Create your key at https://app.nansen.ai/api. Free to start.

Create your key at https://app.nansen.ai/api. Free to start.

Make API calls

Use any endpoint. Prove you've used the Nansen API in your build.

Connect AI tools like Claude and Cursor to Nansen data via Model Context Protocol.

Post your demo on X

Tag @nansen_ai on a social post with a recording that shows what you built.

Submit your entry

Drop your email, API key ID, X post link and GitHub repo in the form below.

Post your demo on X

Tag @nansen_ai on a social post with a recording that shows what you built.

Submit your entry

Drop your email, API key ID, X post link and GitHub repo in the form below.

Rays

Stop scrolling. Start building.

Stop scrolling. Start building.

Stop scrolling. Start building.

Build opens Sept 14. Submissions close Sept 28.

One of Hyperliquid's top validators with over $1B HYPE staked - and every stake earns you Nansen Points.

Submit Your Build ->