Looking to start building on the first & largest Farcaster L2 for free, with L1 data availability? Wield Labs built the second largest Farcaster client (far.quest) and offers the best set of free Farcaster L1 + L2 APIs. We proudly support over 500+ developers with these high-performance APIs, open-sourced under @wieldlabs/superhub, including FarMarket APIs!

Built anything? Join our Developer Telegram to chat about Farcaster development, ask questions and get beta testers for your app!

Getting a free API Key

Start by creating a free API key! We use API keys to prevent abuse.

curl -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "description": "YOUR_DESCRIPTION",
    "email": "YOUR_EMAIL"
  }' \
  https://build.wield.xyz/apikey/create

Field	Description	Example
`YOUR_DESCRIPTION`	The name and description of the project.	`Project X`
`YOUR_EMAIL`	Your email address for any notifications.	`john.doe@example.com`

You'll use this API key as a request header in your HTTP request (API-KEY). For Authentication, use farquest-default-auth-token from your cookies formatted as Bearer ${token}.

Now you can access our free & open-source Farcaster L1 + L2 API endpoints!

Free Farcaster Hubs

To do Farcaster L1 writes, there are tons of companies running free hubs as linked below! Join our Developer Telegram to chat with other developers and to report any issues.

You can also run a hub for only ~$200/month (before credits)!

Free Read/Write Hubs

Support and Updates

Join our Developer Telegram to chat with other developers and to report any issues!

Data Availability

We archive casts & reactions (L1 & L2) after 180 days to significantly improve the performance of our APIs. If you're querying historical data, we recommend querying hubs directly or finding Farcaster archives (e.g. Indexing)!

Legal Disclaimer

You agree to our Terms of Service and Privacy Policy when using our free APIs.