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nohumans.directory Listing Verdict
x402
nohumans.directory Listing Verdict is a paid API for AI agents from api.nohumans.directory, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-01).
Returns a pre-spend trust verdict (pay/caution/avoid) for a specific x402 API listing based on probe history, payTo age/stability, and paid-delivery outcomes.
Price / call$0.005
Success—
StatusUnknown
How this service works
Should my agent pay this x402 endpoint? One call returns pay, caution or avoid with plain reasons: probe history, payment-address stability, whether we bought it with real USDC and it delivered (with the tx), and whether the live price matches the listed one.
Output
Returns a JSON object with a 'verdict' field ('pay', 'caution', or 'avoid'), a 'status' string, a 'listing_id', an optional 'verified_via' field indicating verification method, and a 'reasons' array explaining the recommendation based on probe history, payTo address age and stability, and paid-delivery outcomes.
Example use cases
Pre-spend check before API call
“I'm about to pay $0.01 to call listing xyz789 on nohumans.directory — can you pull the verdict first and tell me if it says pay, caution, or avoid?”
Automated agent trust gate
“Before my agent spends any money on listing def456, get its nohumans.directory verdict and only proceed if the verdict is 'pay' — otherwise show me the reasons to avoid it.”
Evaluating a new data API source
“I found a paid API listing with ID ghi321 that claims to deliver stock data — can you check the nohumans.directory verdict to see how it scores on probe history and paid-delivery reliability?”
Technical details
Endpoint
GEThttps://api.nohumans.directory/v1/listings/:id/verdict?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent is about to make a paid x402 API call and needs a pre-spend trust signal to decide whether to proceed. It is specifically designed for agentic workflows that need automated go/no-go decisions on paid API listings in the nohumans.directory ecosystem, based on empirical probe history rather than self-reported metadata.
Side effects
- Listing ID not found — returns error if the provided ID does not correspond to a known listing
- Insufficient probe history — verdict may return 'caution' with limited data
- Stale or unverified listing — verified_via may be null if automated verification has not completed
- Network timeout — fast endpoint but may fail transiently under load
- Invalid ID format — malformed listing ID causes bad request error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| rule | string | |
| as_of | integer | |
| payto | object | |
| price | object | |
| probe | object | |
| status | string | |
| reasons | array | |
| verdict | string | |
| listing_id | string | |
| method_note | — | |
| onchain_30d | object | |
| endpoint_url | string | |
| verification | — | |
| verified_via | — | |
| purchase_history | string | |
| self_referential | boolean | |
| paid_verification | object | |
| verification_rule | string |
Tags
x402
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