Airstack is a Web3 data aggregation platform providing GraphQL and REST APIs for querying on-chain and off-chain data across multiple blockchains. Developers can query NFT ownership, token balances, wallet identities, ENS names, POAP badges, and cross-chain data in a single composable request.
| API | Type | Endpoint |
|---|---|---|
| Airstack GraphQL API | GraphQL | https://api.airstack.xyz/graphql |
| Farcaster Hub API | REST / gRPC | https://api.airstack.xyz (deprecated) |
- ERC20 token balances and transfers
- ERC721 / ERC1155 NFT ownership and metadata
- ERC6551 token-bound accounts
- ENS names and reverse resolution
- POAP badges
- Wallet identity resolution (cross-chain)
- Social graph data (Farcaster, Lens — Farcaster deprecated as of late 2024)
- XMTP messaging eligibility
- Ethereum
- Polygon
- Base
- Other EVM-compatible chains
Pass your Airstack API key in the Authorization header. A production key requires:
- An Airstack account at app.airstack.xyz
- At least 1 /airstack Channel Fan Token in a connected Farcaster wallet
- A payment card on file
- 3,000 requests/minute
- 300 requests/second (burst)
- Maximum 200 records per query; default 50
$0.00002 USD per API credit. Test keys are free; production keys are billed after free credits are exhausted.
Airstack deprecated all Farcaster-related GraphQL APIs in late 2024. Developers using Farcaster data should migrate to Neynar. Moxie-related data is available at developer.moxie.xyz.
Additionally, as of 2025, the airstack.xyz domain redirects to senpi.ai, which is a separate AI trading agent platform for Hyperliquid. The Airstack developer documentation remains at docs.airstack.xyz.