# Alchemy JSON-RPC EVM Gateway

> Alchemy JSON-RPC EVM Gateway is a paid API for AI agents from Alchemy at mpp.alchemy.com, paid per call via MPP, $0.001000/call, status unknown (last checked 2026-10-13).

Executes JSON-RPC calls (eth_* and alchemy_* methods) against EVM-compatible blockchain networks via Alchemy's multichain node infrastructure

## Facts

- Endpoint: POST https://mpp.alchemy.com/:network/v2?utm_source=zero.xyz
- Price: $0.001000/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Provider: Alchemy
- Docs: https://agents.alchemy.com/s
- Website: https://agents.alchemy.com/
- Tags: rpc, json-rpc, nft, evm, multichain, blockchain, data
- Canonical page: https://www.zero.xyz/c/alchemy-v2-65964951
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xvu9KzB-s3h8FLok0CKSw

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 alchemy-v2-65964951 -d '<json body>'
```

Example prompt: Using Alchemy's multichain RPC gateway, call eth_getBalance for wallet address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum mainnet and return the balance in wei.

## When to prefer this

Use this endpoint when you need raw, low-level EVM blockchain data across any of Alchemy's 100+ supported chains — particularly when you need standard eth_* RPC methods, Alchemy-enhanced alchemy_* methods, or need to query smart contract state, transaction history, balances, or gas estimates. Prefer this over higher-level NFT or Portfolio APIs when you need direct node access, custom contract calls, or methods not covered by specialized APIs.

## Known failure modes

- Invalid JSON-RPC method name returns error code -32601 (method not found)
- Invalid or missing parameters return error code -32602 (invalid params)
- Unsupported network identifier returns 404 or routing error
- Rate limiting or quota exceeded returns 429
- Node unavailability or timeout returns 503
- Malformed JSON body returns -32700 (parse error)
- Calling a write method (eth_sendRawTransaction) with a read-only key may return auth error

## How this service works

JSON-RPC call (eth_*, alchemy_*)

## Output

Returns a JSON-RPC response object containing the result field with the requested on-chain data — such as a balance in hex wei, a transaction object, block data, logs array, gas estimate, or contract return value — or an error object with code and message if the call failed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "owner",
  "network",
  "endpoint"
 ],
 "properties": {
  "owner": {
   "type": "string"
  },
  "network": {
   "type": "string"
  },
  "endpoint": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/alchemy-v2-65964951/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.alchemy.com](https://www.zero.xyz/host/mpp.alchemy.com/llms.txt)