# DDG Browser Proof Service

> DDG Browser Proof Service is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Returns a cryptographic or verifiable proof that a browser-based HTTP request was executed, via a micropayment-gated POST endpoint.

## Facts

- Endpoint: POST https://agents.daedalusdevelopmentgroup.com/v1/browser-proof
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ddg-browser-proof-service-cd3409ec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y5HlmDIAoFHi6GyWIM56Y

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-browser-proof-service-cd3409ec -d '<json body>'
```

Example prompt: Can you submit a browser proof for my JSON POST request body and return the verification result — I'll pay the $0.03 USDC fee via x402?

## When to prefer this

Choose this endpoint when you need a bounded, machine-verifiable proof that a browser-based HTTP interaction occurred, and you are prepared to pay $0.03 USDC per call via x402 multi-chain micropayment. It is distinct from raw API proxies because DDG sells the proof artifact, not account access. Prefer it when your agent workflow requires attestation or audit evidence of a web request having been made.

## Known failure modes

- Payment not received or insufficient USDC — returns 402 Payment Required
- Missing required fields (input.type, input.method, input.bodyType, input.body) — returns 400 Bad Request
- Invalid method enum value (not POST/PUT/PATCH) — schema validation failure
- Provider environment not live for some payment rails — MPP/Stripe payments may be rejected
- Network timeout or upstream service unavailability — returns 5xx 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

A JSON object with an 'ok' boolean field indicating whether the browser proof was successfully generated and validated for the submitted HTTP request.

## 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-browser-proof-service-cd3409ec/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)