# DDG MCP Drift-Check Baseline Snapshot

> DDG MCP Drift-Check Baseline Snapshot is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Fetches an MCP server's tool surface and returns a signed, pinnable baseline snapshot with per-tool fingerprints (hash, description_sha, schema_sha, scopes) and a set-level snapshot_sha256.

## Facts

- Endpoint: POST https://agents.daedalusdevelopmentgroup.com/v1/mcp/drift-check/baseline?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ddg-mcp-drift-check-baseline-snapshot-e113d3f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_T12uBgzADe4GrjaDQM35m

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-mcp-drift-check-baseline-snapshot-e113d3f0 -d '<json body>'
```

Example prompt: Take a signed baseline snapshot of my MCP server right now — I want per-tool fingerprints with hashes, description and schema SHAs, and a set-level snapshot_sha256 I can pin for future drift checks.

## When to prefer this

Use this endpoint when you need a cryptographically signed, pinnable snapshot of an MCP server's entire tool surface for drift detection, compliance auditing, or integrity verification. Prefer it over manual inspection when you need machine-verifiable SHA fingerprints per tool and a set-level hash that can be diffed against future states.

## Known failure modes

- MCP server unreachable — returns error if the target server cannot be contacted
- Invalid or missing body — 422 if required fields (type, method, bodyType, body) are absent
- Payment not received — 402 if x402 payment of $0.01 USDC is not attached or fails
- Server returns malformed tool surface — snapshot may be partial or error flagged
- Signing failure — internal error if signing key is unavailable

## 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 signed JSON object containing: an array of per-tool fingerprints each with hash, description_sha, schema_sha, and scopes fields; plus a set-level snapshot_sha256 covering the entire tool surface. The response is cryptographically signed and intended to be stored as a pinnable baseline for future drift comparison.

## 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-mcp-drift-check-baseline-snapshot-e113d3f0/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)