# QuantaFlow x402 API Gateway - Rapid Solana & NEAR Crypto APIs

> QuantaFlow x402 API Gateway - Rapid Solana & NEAR Crypto APIs is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Proxies requests to Solana and NEAR blockchain/DeFi data APIs via the x402 micropayment protocol, charging $0.01 USDC per call

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/rapid-solana-near-crypto-apis?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-x402-api-gateway-rapid-solana-near-crypto-apis-b8542c6e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rmPniBQgin-zJe7jCFbwb

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 quantaflow-x402-api-gateway-rapid-solana-near-crypto-apis-b8542c6e -d '<json body>'
```

Example prompt: Can you look up the current token price and recent transaction history for a Solana wallet address using the QuantaFlow crypto gateway — it charges $0.01 USDC per call via x402?

## When to prefer this

Choose this endpoint when you need programmatic access to Solana or NEAR blockchain data and want to pay per-call via x402 micropayments (USDC on-chain) rather than managing a traditional API key subscription. Suitable for agents that need occasional, low-frequency crypto data lookups without committing to a monthly plan.

## Known failure modes

- Payment failure: x402 payment of $0.01 USDC not completed, request blocked
- Invalid path: upstream API path not found, returns 404 or upstream error
- Malformed query: invalid query parameters or body cause upstream API error
- Upstream timeout: Solana/NEAR RPC or RapidAPI upstream unresponsive
- Rate limiting: upstream API quota exceeded
- Invalid method: HTTP method not supported by upstream endpoint

## How this service works

Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.

## Output

The raw upstream response body from the Solana or NEAR API provider, passed through transparently after successful x402 micropayment, including blockchain data such as balances, transactions, token prices, account states, or DeFi metrics depending on the path queried.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "body": {
   "type": "string",
   "description": "Optional JSON body forwarded to POST requests."
  },
  "path": {
   "type": "string",
   "description": "Path below the selected upstream origin."
  },
  "query": {
   "type": "object"
  },
  "method": {
   "enum": [
    "GET",
    "POST"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "description": "The upstream response body and content type are passed through after successful payment."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quantaflow-x402-api-gateway-rapid-solana-near-crypto-apis-b8542c6e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quanta-roan.vercel.app](https://www.zero.xyz/host/quanta-roan.vercel.app/llms.txt)