# DDG Base Address Lookup

> DDG Base Address Lookup is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Returns balance, nonce, and code presence for a given address on the Base blockchain network.

## Facts

- Endpoint: POST https://agents.daedalusdevelopmentgroup.com/v1/base/address?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ddg-base-address-lookup-cde6157c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Udo8-_oFpMUK4gryZH13a

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-base-address-lookup-cde6157c -d '<json body>'
```

Example prompt: Can you check the balance, nonce, and whether there's any contract code at the Base address 0xAbC123...def456?

## When to prefer this

Use this endpoint when you need a quick, cheap ($0.01 USDC) on-chain state snapshot — balance, nonce, and code presence — for a Base network address, without spinning up your own RPC node. Prefer it over generic Ethereum RPC endpoints when you specifically need Base chain data through an agent-payable, machine-accessible interface.

## Known failure modes

- Invalid or malformed Ethereum address returns an error
- Address not found or zero-state account may return zeros for all fields
- Network or RPC connectivity issues may cause timeouts
- Payment failure (insufficient USDC) prevents call from being processed
- Malformed request body returns validation error

## 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 object with the address's current balance (in wei or ETH), its transaction nonce (number of transactions sent), and a flag or value indicating whether contract bytecode is present at that address on the Base network.

## 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-base-address-lookup-cde6157c/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)