# QuantaFlow x402 API Gateway – Infura Celo Mainnet

> QuantaFlow x402 API Gateway – Infura Celo Mainnet is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Proxies requests to the Infura Celo Mainnet RPC endpoint via x402 micropayment protocol, charging $0.01 USDC per call

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/infura-celo-mainnet
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-x402-api-gateway-infura-celo-mainnet-1de0ced1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0cgPkwZp3vvNsU42_gOQC

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-infura-celo-mainnet-1de0ced1 -d '<json body>'
```

Example prompt: Can you query the Celo mainnet via Infura and get the latest block number? Use the eth_blockNumber JSON-RPC method.

## When to prefer this

Choose this endpoint when you need pay-per-call access to the Infura Celo Mainnet RPC without a subscription or API key, using x402 USDC micropayments. Ideal for agents that need sporadic or low-volume Celo blockchain queries (balances, blocks, transactions, contract reads) and want frictionless per-request billing rather than managing API credentials.

## Known failure modes

- Insufficient USDC balance for x402 payment — payment rejected before request is forwarded
- Invalid or malformed JSON-RPC method or params — Infura returns JSON-RPC error
- Unsupported path or method — gateway returns 400 or 404
- Infura rate limit or downtime — upstream timeout or 503
- Invalid x402 payment header — 402 Payment Required returned
- Celo mainnet node unavailable — upstream returns 500

## How this service works

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

## Output

The raw upstream Infura Celo Mainnet RPC response body (JSON-RPC result or error), passed through transparently after successful x402 micropayment processing. Includes standard JSON-RPC fields like result, id, and jsonrpc version.

## 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-infura-celo-mainnet-1de0ced1/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)