# santyvv-data Generic JSON-RPC Passthrough

> santyvv-data Generic JSON-RPC Passthrough is a paid API for AI agents from santyvv-x402.santyvv1993.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-01).

Forwards any read-only JSON-RPC method call to an EVM-compatible blockchain node and returns the raw response

## Facts

- Endpoint: POST https://santyvv-x402.santyvv1993.workers.dev/api/chain/rpc?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-data-generic-json-rpc-passthrough-a30db855
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ezc93rlUPxesy0zsVCmvZ

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 santyvv-data-generic-json-rpc-passthrough-a30db855 -d '<json body>'
```

Example prompt: Send a raw JSON-RPC call using the method eth_getBlockByNumber with params ["latest", false] and return whatever the node responds with.

## When to prefer this

Choose this endpoint when you need to make an arbitrary or unlisted JSON-RPC method call that isn't covered by the more specific sibling endpoints (e.g. eth_getBalance, eth_call, eth_getTransactionReceipt). It's the best choice for ad-hoc or custom RPC queries, debugging, or methods not exposed via dedicated endpoints.

## Known failure modes

- Invalid JSON-RPC method name returns error code -32601 method not found
- Malformed params cause -32602 invalid params error
- Write methods (eth_sendRawTransaction) may be blocked as only read-only calls are supported
- Network or node downtime returns a 5xx or timeout error
- Missing required body fields returns a 400 or schema validation error

## How this service works

Generic read-only JSON-RPC passthrough

## Output

Returns the raw JSON-RPC response object from the blockchain node, including the result field with whatever data the queried method returns, or an error object if the call fails.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/santyvv-data-generic-json-rpc-passthrough-a30db855/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from santyvv-x402.santyvv1993.workers.dev](https://www.zero.xyz/host/santyvv-x402.santyvv1993.workers.dev/llms.txt)