Beauty & Personal Care · x402 · early usage

Ethereum mainnet JSON-RPC from an independently operated full node

by 402rpc.com · discovered, not yet claimed by its owner · updated 2026-10-11

30d calls7

30d payers3

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Ethereum mainnet JSON-RPC from an independently operated full node. One call per payment, no account or API key. Serves eth_, net_ and web3_ methods. Blocks, transactions, receipts and logs from the Merge (block 15537394) onward. Current state only, not an archive node: historical state calls are refused, not charged. eth_getLogs capped at 10000 blocks. Raw transactions go out via public relays. Price scales with method cost.

Tags: ethereum · rpc · json-rpc · blockchain · mainnet · bazaar

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-10-11

Input example from Bazaar metadata

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_blockNumber",
  "params": []
}

Output example

{
  "id": 1,
  "jsonrpc": "2.0",
  "result": "0x18a5fc8"
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/35617.json for the price and payment options.
Pay. Call GET https://402rpc.com/rpc. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Polygon, Arbitrum One, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.001 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Polygon, Arbitrum One
Demand: 7 calls · 3 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.001	0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1	30s
exact	Polygon eip155:137	USDC	$0.001	0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1	30s
exact	Arbitrum One eip155:42161	USDC	$0.001	0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1	30s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 30
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 30
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 30
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "description": "A JSON-RPC 2.0 response. HTTP 400 means the request was refused before payment and nothing was charged; 502 means the node was unreachable, also uncharged. Errors inside a 200 response are the node's own answer.",
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {},
  "type": "string"
}

Examples

curl

curl -X POST 'https://402rpc.com/rpc' -H 'Content-Type: application/json' --data '{"id":1,"jsonrpc":"2.0","method":"eth_blockNumber","params":[]}'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://402rpc.com/rpc", {
  "method": "POST",
  "headers": {
    "content-type": "application/json"
  },
  "body": "{\"id\":1,\"jsonrpc\":\"2.0\",\"method\":\"eth_blockNumber\",\"params\":[]}"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
import json
res = httpx.request("POST", "https://402rpc.com/rpc", json=json.loads("{\"id\":1,\"jsonrpc\":\"2.0\",\"method\":\"eth_blockNumber\",\"params\":[]}"))
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: 402rpc.com
Endpoint: https://402rpc.com/rpc
Machine-readable: /resources/35617.json