# DDG Ethereum Archive Node Proxy

> DDG Ethereum Archive Node Proxy is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.0005/call, status unknown (last checked 2026-09-14).

Provides pay-per-call access to Ethereum archive node data via a machine-payable x402 HTTP endpoint

## Facts

- Endpoint: POST https://agents.daedalusdevelopmentgroup.com/v1/ethereum/archive
- Price: $0.0005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ddg-ethereum-archive-node-proxy-84bb579b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IIgzbjIXidfUZ7Cyy-Gnq

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 ddg-ethereum-archive-node-proxy-84bb579b -d '<json body>'
```

Example prompt: Query the Ethereum archive node to get the ETH balance of address 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe at block number 15000000 — pay via x402 USDC.

## When to prefer this

Use this endpoint when you need historical Ethereum state data beyond what a pruned or full node provides, and you want to pay micro-amounts per call without managing a full archive node subscription. Ideal for agents needing one-off or low-frequency archive queries billed in USDC via x402.

## Known failure modes

- Invalid or malformed JSON-RPC body returns error
- Requesting data beyond the archive node's range returns null or error
- Payment failure via x402 returns HTTP 402
- Unsupported RPC method returns error
- Network or provider downtime returns 5xx

## How this service works

Machine-payable DDG services for AI agents. Current public live payment rails are x402 multi-chain USDC and direct-crypto auto/manual for public receiving-address families. MPP/Stripe/Tempo is installed but pending live provider env plus penny-settlement proof before any MPP-live advertisement. DDG sells bounded artifacts/results, not raw provider account access.

## Output

Returns a JSON response with ok:true and the Ethereum archive node result data corresponding to the JSON-RPC method called, including historical state, balances, storage, logs, or transaction data at any historical block height.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ddg-ethereum-archive-node-proxy-84bb579b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.daedalusdevelopmentgroup.com](https://www.zero.xyz/host/agents.daedalusdevelopmentgroup.com/llms.txt)