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x402 Endpoint Diligence & Price Benchmarking
x402
x402 Endpoint Diligence & Price Benchmarking is a paid API for AI agents from diligence.x402supply.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Runs live due-diligence checks on an x402-metered API endpoint — validating 402 spec compliance, benchmarking price against market percentiles, inspecting the payTo address on-chain, and checking directory presence — then returns a 0-100 score, a pass/caution/fail verdict, and per-check evidence.
Price / call$0.02
Success—
StatusUnknown
How this service works
Runs live diligence on an x402-metered endpoint before you pay it: verifies its 402 payment challenge is spec-compliant, checks the price against market baselines, inspects the payTo address on-chain (Base), checks third-party directory presence, and checks basic infra hygiene. Returns a 0-100 score, a pass/caution/fail verdict, and per-check evidence.; Compares an x402 endpoint's price (or a given price/category pair) against market percentiles from our daily radar snapshot of the x402 ecosystem.
Output
Returns a 0-100 integer diligence score, a verdict of 'pass', 'caution', or 'fail', and structured per-check evidence covering: 402 spec compliance, price vs. market percentiles (from x402supply's daily radar snapshot), on-chain inspection of the payTo address on Base, third-party directory presence, and basic infrastructure hygiene.
Example use cases
Pre-payment safety check for unknown API
“I found this x402-metered endpoint at https://api.someprovider.com/summarize and I'm about to pay it — can you run diligence on it first and tell me if it passes, what score it gets, and whether anything looks suspicious?”
Price sanity check before integrating
“This x402 API charges $0.05 per call in the 'text-summarization' category — is that price reasonable or is it way above market? Run a price benchmark against the x402 ecosystem and tell me what percentile it falls in.”
Automated trust gate in agent pipeline
“My agent is about to call an x402 endpoint it discovered at https://unknown-vendor.io/mcp — before it pays, run the diligence check and only proceed if the verdict is 'pass' with a score above 70.”
Technical details
Endpoint
POSThttps://diligence.x402supply.com/mcpWhen to prefer
Use this endpoint whenever an AI agent or developer discovers an unknown x402-metered API and needs to assess trust before committing a payment. It is the right choice when you need a composite diligence signal — spec compliance + price fairness + on-chain address verification + directory presence — in a single call, rather than querying each dimension separately. Prefer it over manual inspection when operating autonomously at scale or when integrating new x402 endpoints into a production agent pipeline.
Side effects
- Endpoint unreachable — 402 challenge cannot be fetched, check fails with network error
- payTo address not on Base — on-chain check fails or returns no data
- Endpoint not found in x402 ecosystem snapshot — price benchmark unavailable for that category
- Invalid URL input — returns validation error
- Ambiguous or missing category — price percentile comparison may be skipped
Tags
x402
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