# DDG Mail Acknowledgment Service

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

Sends an HTTP acknowledgment (ack) for mail-related agent actions via a micropayment-gated POST endpoint

## Facts

- Endpoint: POST https://agents.daedalusdevelopmentgroup.com/v1/mail/ack?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ddg-mail-acknowledgment-service-cda47ea3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ynjZz8agoNHwM1rB1P3c5

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-mail-acknowledgment-service-cda47ea3 -d '<json body>'
```

Example prompt: Send an acknowledgment to the DDG mail service confirming that I've processed the incoming mail item — use a JSON body with the relevant confirmation details.

## When to prefer this

Choose this endpoint when you need a lightweight, micropayment-gated acknowledgment signal for mail-related agent workflows on the DDG platform, particularly when operating within the x402 payment rail ecosystem and needing to confirm mail item processing programmatically.

## Known failure modes

- Missing required fields (input or output) returns a 4xx validation error
- Invalid body type enum value causes request rejection
- Payment not included or insufficient USDC results in 402 Payment Required
- Malformed JSON body leads to parse error
- Network timeout if service is temporarily unavailable

## How this service works

DDG agent-payable service request

## Output

Returns a JSON object with an 'ok' boolean field indicating whether the acknowledgment was successfully received and processed by the DDG mail service.

## 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-mail-acknowledgment-service-cda47ea3/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)