# Solana x402 Blockchain RPC API

> Solana x402 Blockchain RPC API is a paid API for AI agents from solana-x402-xi.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Executes Solana blockchain RPC calls via a pay-per-use x402 micropayment API, enabling on-chain queries and transactions.

## Facts

- Endpoint: POST https://solana-x402-xi.vercel.app/api/v1/blockchain-rpc?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solana-x402-blockchain-rpc-api-9cd0ce06
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e5lf6BdHBxviZo4XcEDLD

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability solana-x402-blockchain-rpc-api-9cd0ce06 -d '<json body>'
```

Example prompt: Call the Solana blockchain RPC with params to get the current account balance for address 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU — pay with USDC via x402.

## When to prefer this

Choose this endpoint when you need direct Solana JSON-RPC access and want to pay per call with USDC micropayments via the x402 protocol, avoiding the need for a dedicated RPC subscription or API key. Ideal for agents with sporadic, low-volume Solana on-chain queries.

## Known failure modes

- Invalid or malformed RPC params string returns a JSON-RPC error response
- Payment failure via x402 results in 402 Payment Required HTTP error
- Unsupported RPC method returns method-not-found error
- Network timeout or Solana cluster unavailability returns 503 or timeout error
- Insufficient USDC balance on caller's account blocks the payment and request

## How this service works

Blockchain data APIs with x402 payments on Solana + Base via PayAI facilitator. 7 endpoints covering bridge routing, whale alerts, DeFi yields, RPC, NFT, token, and transaction history.

## Output

Returns the raw Solana JSON-RPC response for the given method and params, including account data, transaction status, block details, or other on-chain state depending on the method called.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solana-x402-blockchain-rpc-api-9cd0ce06/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from solana-x402-xi.vercel.app](https://www.zero.xyz/host/solana-x402-xi.vercel.app/llms.txt)