The Agent reaches the route but cannot turn its 402 response into a valid checkout attempt.
Revenue protection for paid APIs
What could one broken 402 cost your paid API?
A customer Agent can reach your API and still fail before payment because the price, recipient, network, or challenge changed. Estimate the business exposure with your own numbers—then check the route causing it.
Quantify the exposureFind the first blockerCopy the fix
Built for the human who owns the API and its revenue. You paste the endpoint here. Agents, CI pipelines, and automated tools use REST or MCP.
Editable example · monthly exposure
$1,850
per month at risk
If blocked paid calls and debugging consume the values you enter, this is the revenue and engineering cost exposed—not a guaranteed AgentMint saving.
Paid-call revenue exposed$1,250
Annual exposure$22,200
Optional future-plan sensitivity
116 paid calls at the current example price would cover a hypothetical $29 monthly plan. No paid plan is active.
Use your logs when available. The 5% value is an editable scenario—not an industry benchmark or a measured AgentMint result.
AgentMint checks only pre-payment x402/MPP evidence. It cannot prevent wallet, issuer, balance, settlement, or delivery failures. Current beta: $0 and billing disabled.
Protocolsx402 v1/v2 + MPP challenge
OperationRead-only public route check
CustodyNo wallet, signature, or payment
Beta price$0 · billing disabled
Get the answer
Could this route lose a paid call?
Paste the exact public HTTPS resource that charges the customer—not your homepage, dashboard, docs, wallet, or facilitator.
Which URL should I paste?
- The route a customer Agent calls to buy data, content, or tool output.
- Without a payment credential, this exact route should normally return HTTP 402.
- Examples:
https://api.example.com/v1/reportorhttps://worker.example.com/paid-tool.
402 Evidence Rail. Every check follows the same visible path; the labels carry meaning even without color.
- ReachablePublic HTTPSNext
- HTTP 402Payment gateNext
- ChallengeProtocol parsedNext
- TermsPrice + recipientNext
- DiscoveryRoute listedNext
- Next moveFix or protectNext
No walletNo signatureNo paymentNo signup
Example outcome
This route may be losing paid calls.
Observed: the payment challenge does not disclose who receives the payment.
Fix first: add the recipient required by your protocol, then scan again.
This result identifies pre-payment revenue risk. It does not test a wallet, send credentials or money, or prove payment, settlement, or paid-content delivery.
Show technical evidence
The problem
These failures look like lost demand—not a clear error.
Your server may be online while customer Agents quietly abandon checkout. The human owner sees fewer paid calls, support questions, and debugging time—not a useful stack trace.
A missing price, recipient, network, or challenge field looks like “the customer did not buy.”
A changed header or discovery document breaks a route that worked yesterday, without an obvious outage.
The result
One scan gives the API owner a decision.
Checkout may stop before your API earns this call.
Fix firstDisclose the payment recipient, then scan again.
- ReachablePublic routePassed
- HTTP 402Gate foundPassed
- Challengex402 parsedPassed
- TermsRecipient missingNeeds review
- DiscoveryNot yet checkedNot tested
- Next moveCopy exact fixNext
After your first result
Keep the route from silently losing paid calls
One click starts a free seven-day Watch. AgentMint checks daily and gives you a private history link. No signup or pricing survey is required.
You receive the private history link immediately. Save it; email alerts are not active.
Protect the next deploy
Copy a CI gate for this exact route
The build receives HTTP 422 when the selected evidence policy fails. This is still read-only and sends no payment.
Preview GitHub Actions step
Optional proof
Want this result considered for the public compatibility directory?
Only submit an endpoint you are allowed to make public. Your request is queued for manual review; AgentMint never auto-publishes a directory listing.
For repeatable delivery
The web page serves humans; automation uses the same evidence.
Human decision
Paste the paid route, read the revenue risk, and apply the first fix.
Agent or CI gate
Reuse the same evidence through MCP, REST, or the generated CI gate.
Public proof
Share the Trust Card or Badge; directory inclusion remains a separate manual review.
Direct answers
Before you trust the result.
The short, exact answers a founder, developer, search engine, or AI assistant should see before recommending AgentMint.
What does AgentMint Verify check?
It checks whether a public HTTPS paid API route exposes enough x402 or MPP pre-payment evidence for a supported checkout to start, then identifies the first observed blocker and a next fix.
Does it send a payment or use wallet credentials?
No. The beta is read-only. It does not accept wallet credentials, create a signature, send money, verify settlement, or prove delivery.
How much does AgentMint Verify cost?
The current public beta costs zero dollars and billing is disabled. Any future paid plan remains planned pricing, not an active charge.
Which URL should an API owner scan?
Scan the exact public HTTPS resource that a customer Agent calls to buy data, content, or tool output—not a homepage, documentation page, dashboard, wallet, or facilitator.
Machine-readable product facts are also available in llms.txt, OpenAPI, and x402 discovery.