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A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor
A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor is a paid API for AI agents from preflight.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Audits any A2A agent, MCP, or x402 service URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers.
Price / call$0.01
Success—
StatusUnknown
How this service works
Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers. (Live x402 v2, IETF MPP & MCP endpoint at https://preflight.agentdiet.dev/v1/paywall-scanner)
Output
Returns a structured compliance report covering JSON-RPC conformance, measured latency vs SLA thresholds, OpenAPI schema validation results, and HTTP 402/x402 settlement header presence and correctness for the target URL.
Example use cases
Pre-deployment MCP server compliance check
“Before I go live, can you audit https://api.mycompany.com/mcp and tell me if it's fully JSON-RPC compliant and whether its HTTP 402 payment headers look correct?”
Third-party A2A agent SLA verification
“I'm about to integrate a vendor's agent at https://vendor.ai/a2a/endpoint — can you run a compliance audit on it to check latency SLA and OpenAPI schema validity before I commit?”
x402 paywall configuration debugging
“My x402 paywall at https://preflight.agentdiet.dev/v1/my-service doesn't seem to be accepting payments correctly — can you scan it and tell me what's wrong with the HTTP 402 settlement headers?”
Technical details
Endpoint
GEThttps://preflight.agentdiet.dev/v1/paywall-scanner?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically verify that an A2A agent, MCP server, or x402-enabled API URL is protocol-compliant before integration, deployment, or marketplace listing — especially when you need to check JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment header setup in a single call. Prefer it over manual inspection or generic HTTP testing tools when working in agent-to-agent or payment-gated API ecosystems.
Side effects
- Target URL is unreachable or returns a non-2xx/402 status — audit fails with connectivity error
- Malformed or missing URL parameter — returns validation error
- Target endpoint does not expose any recognizable protocol (no JSON-RPC, no OpenAPI, no 402 headers) — returns partial or empty compliance report
- Network timeout if target endpoint is slow — latency SLA check may fail or be inconclusive
- Target blocks external probes or requires authentication — compliance checks may be incomplete
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | Target A2A, MCP, or x402 service URL to audit for protocol compliance |
Output
Schema · Response
{
"type": "object"
}Reviews
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