2026.04.16 - Release x402 Payment Support
Birdeye Data now supports x402, an open payment protocol built on the HTTP 402 standard. AI agents and applications can access Birdeye Data APIs by paying per request on-chain using USDC on Solana — no API key or subscription required.
Features
x402 Endpoints
47 Birdeye API endpoints are now accessible via x402 payment, organized across 7 categories:
| Category | Base path | Endpoints |
|---|---|---|
| DeFi (v1) | /x402/defi | 16 |
| DeFi (v2) | /x402/defi/v2 | 3 |
| DeFi (v3) | /x402/defi/v3 | 21 |
| Token | /x402/token/v1 | 3 |
| Trader | /x402/trader | 2 |
| Holder | /x402/holder/v1 | 1 |
| Smart Money | /x402/smart-money/v1 | 1 |
These endpoints are identical to their standard counterparts in functionality and response format — only the authentication method differs. Instead of an API key, each request is accompanied by an on-chain USDC payment on Solana, verified by the x402 facilitator before the request is processed.
How it works
- Send a request to any
/x402/...endpoint without an API key - The server responds with
402 Payment Required, including a payment payload describing the amount and recipient address - Your client signs and submits the on-chain payment
- Resend the request with the payment proof — the server verifies and returns the data
A discovery endpoint is available at GET /x402/discover to list all supported routes along with their pricing and network details.