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DDG PGP Sign
x402
DDG PGP Sign is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).
Signs data using PGP (Pretty Good Privacy) cryptographic signing via a machine-payable API endpoint
Price / call$0.01
Success—
StatusUnknown
How this service works
DDG agent-payable service request
Output
Returns a signed output (ok: true on success) containing a PGP signature over the submitted body data, enabling downstream parties to verify authenticity and integrity of the signed payload.
Example use cases
Sign a software release artifact
“I need to PGP-sign the release manifest for my software package. The body is {"version":"1.2.0","sha256":"abc123"} — can you send it as a JSON POST and get back the signed output?”
Authenticate an agent-to-agent message
“My agent is sending a message to another service that requires PGP signature verification. Please sign this JSON body {"agentId":"agent-42","action":"transfer"} so the receiving service can verify it came from us.”
Produce a signed audit log entry
“I need a cryptographically signed version of this audit event {"event":"user_login","userId":"u-99","timestamp":"2025-01-15T10:00:00Z"} — sign it via PGP and return the signature so I can store it for tamper-evident logging.”
Technical details
Endpoint
POSThttps://agents.daedalusdevelopmentgroup.com/v1/pgp/sign?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to produce PGP-signed data in a pay-per-call, machine-payable context using the x402 protocol. Ideal when integrating PGP signing into automated agentic workflows without managing a local PGP keyring. Best suited for agents that need tamper-evident signatures on JSON or text payloads and can pay micro-amounts in USDC.
Side effects
- Invalid or malformed JSON body — 400 error
- Unsupported HTTP method passed in 'method' field — validation error
- Payment not provided or insufficient USDC balance — 402 Payment Required
- Body type mismatch (e.g. form-data vs json) — processing error
- Internal signing key unavailable — 500 server error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true
}
}Tags
x402
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