# GPUOps Polygon RPC Endpoint

> GPUOps Polygon RPC Endpoint is a paid API for AI agents from chain.gpuops.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Provides JSON-RPC access to the Polygon blockchain network via a pay-per-call API using USDC on Base.

## Facts

- Endpoint: POST https://chain.gpuops.io/v1/rpc/polygon
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gpuops-polygon-rpc-endpoint-94df6a97
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nyUbB-VHTQgz5JiIgPe9e

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 gpuops-polygon-rpc-endpoint-94df6a97 -d '<json body>'
```

Example prompt: Can you check the current MATIC balance for wallet address 0xAbC123... on Polygon using the eth_getBalance method?

## When to prefer this

Choose this endpoint when you need direct JSON-RPC access to the Polygon network and want pay-per-call microtransaction pricing with USDC rather than a subscription. Ideal for agents that make sporadic or low-volume Polygon queries and want to avoid monthly API key commitments. Well-suited for multi-chain workflows where GPUOps also covers other chains under the same payment model.

## Known failure modes

- Invalid JSON-RPC method name returns error code -32601
- Malformed params array causes -32602 invalid params error
- Payment failure or insufficient USDC balance returns HTTP 402
- Rate limiting may occur under high call volume
- Network congestion on Polygon may increase latency
- Invalid contract address returns empty result or revert error

## How this service works

Multi-chain blockchain data API. 7 chains. x402 pay-per-call with USDC on Base.

## Output

Returns a standard JSON-RPC response object containing the result field with blockchain data (e.g., balance in wei, block object, transaction receipt, contract return value) or an error object with code and message if the call fails.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "id": {
   "type": "integer"
  },
  "method": {
   "type": "string"
  },
  "params": {
   "type": "array"
  },
  "jsonrpc": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gpuops-polygon-rpc-endpoint-94df6a97/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chain.gpuops.io](https://www.zero.xyz/host/chain.gpuops.io/llms.txt)