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Cryptographic Pre-Flight Security & TDQS Certification
Cryptographic Pre-Flight Security & TDQS Certification is a paid API for AI agents from assay.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-23).
Runs a cryptographic pre-flight security audit and TDQS reputation certification on a target A2A, MCP, or x402 endpoint, returning a grade and score.
Price / call$0.005
Success—
StatusUnknown
How this service works
Run a cryptographic pre-flight security & TDQS certification on an endpoint (Live x402 v2, IETF MPP & MCP endpoint at https://assay.agentdiet.dev)
Output
Returns a JSON object containing a certification status (e.g. pass/fail), a letter grade indicating the security quality of the target endpoint, an integer score, the target URL, and optional pagination fields (has_more, next_cursor) for retrieving additional audit records.
Example use cases
Pre-flight check before paying an x402 endpoint
“Before we send any payments to that x402 endpoint at https://payments.example.com, run a security certification on it and tell me if it passes and what grade it gets.”
Vetting a new A2A agent before integration
“I want to integrate a third-party A2A agent at https://agent.someservice.ai — can you run a TDQS certification and security audit on it first so I know it's safe to connect to?”
Validating an MCP endpoint for a production workflow
“We're about to add https://mcp.partner.dev to our production pipeline — please run a cryptographic pre-flight security check on it and give me its trust score and grade before we proceed.”
Technical details
Endpoint
POSThttps://assay.agentdiet.dev/v1/certify?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, automated cryptographic pre-flight security check and TDQS reputation score on an A2A, MCP, or x402 endpoint before integrating it, paying it, or routing agent traffic through it. It is especially valuable in zero-trust agent-to-agent architectures where you cannot afford to blindly trust a new endpoint. Prefer this over manual inspection or generic HTTP health checks when you specifically need a formal grade and TDQS certification result.
Side effects
- Target URL is unreachable — returns error status with no grade
- Target endpoint is not an A2A/MCP/x402 endpoint — may return low score or failure grade
- Invalid or malformed target URL — returns 400-level error
- Payment of $0.005 USD not settled — returns 402 Payment Required
- Rate limit exceeded — returns 429 Too Many Requests
- Idempotency key collision with different payload — returns conflict error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| targetrequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| graderequired | string | |
| scorerequired | integer | |
| statusrequired | string | |
| target | string | |
| has_more | boolean | |
| next_cursor | string |
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