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DDG Directory Lint — HTTP Message Signatures Directory Validator
x402
DDG Directory Lint — HTTP Message Signatures Directory Validator is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Fetches and lints a /.well-known/http-message-signatures-directory endpoint, checking JWK shape (OKP/Ed25519), self-signature presence, key freshness, and pinned-agent consistency, returning a per-step pass/fail report.
Price / call$0.01
Success—
StatusUnknown
How this service works
Fetch and lint a /.well-known/http-message-signatures-directory: JWK shape (OKP/Ed25519), self-signature presence, key freshness, and pinned-agent consistency. Per-step pass/fail report.
Output
A per-step pass/fail report covering: JWK shape validity (OKP/Ed25519), presence of self-signature, key freshness status, and pinned-agent consistency. Each check is individually reported so the caller can identify exactly which aspect of the directory is non-compliant.
Example use cases
Pre-deployment agent identity audit
“Before I deploy my new AI agent, can you lint its /.well-known/http-message-signatures-directory at https://staging.myagent.io and give me a step-by-step report on whether the OKP/Ed25519 JWK is properly shaped, the self-signature is there, and the key hasn't expired?”
Debugging failing agent authentication
“My agent at https://agent.myservice.com keeps failing authentication handshakes — can you run a full lint on its http-message-signatures-directory and show me exactly which checks are passing and which are failing, including pinned-agent consistency?”
Periodic compliance check for agent key freshness
“I need to verify that my production agent's well-known signatures directory at https://prod.agentfleet.example.com still has fresh keys and a valid self-signature — can you lint it and flag any stale or misconfigured entries?”
Technical details
Endpoint
POSThttps://agents.daedalusdevelopmentgroup.com/v1/wba/directory-lint?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to validate that a /.well-known/http-message-signatures-directory is correctly configured for agent-to-agent authentication — specifically when checking Ed25519/OKP JWK compliance, self-signature presence, key freshness, and pinned-agent consistency in a single call. Prefer this over manual inspection or general-purpose HTTP tools when you need a structured, per-step audit report.
Side effects
- Target URL is unreachable or returns non-200 — lint cannot proceed
- Directory is missing required fields — individual step fails with explanation
- Key is expired or stale — key freshness step fails
- Self-signature is absent or invalid — self-signature step fails
- Pinned-agent reference is inconsistent — pinned-agent consistency step fails
- Malformed JWK (wrong curve or key type) — JWK shape step fails
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Tags
x402
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