AgentResolver — Agent Commerce Health Monitoring
https://agentresolver.vercel.app/api/provider-launch-checkFree API/MCP/x402 health checks plus $19 hourly managed monitoring for agent services.
Paid verification
How it worksNo sponsored paid call yet.
Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.
Quality grade
How grading works- ✓ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
x402 readiness
Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B+, 68.1/100), which weighs availability, payability and on-chain demand. How the two differ
| Valid payment requirements | 10/10 | Payment requirements carry a payee, a mainnet network and a price. |
| Live 402 challenge | 20/25 | Endpoint reachable; its 402 challenge was seen earlier (721 ms). |
| x402 version | n/a | x402 version not observed yet. |
| Signed descriptor | n/a | No x402 standard defines a signed descriptor. |
| Uptime (30 days) | 15/15 | 32/32 probes succeeded over 30 days (100%). |
| Resource declaration | 10/10 | Declares 14 paid resource(s). |
| Verified identity | 5/10 | Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control. |
| Freshness + modern flags | 5/5 | seen in a source within 7 days; declares x402. |
| Security declaration | n/a | Payment is the access control for an x402 resource. |
Compared with peers
Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.
- Readiness
- Higher than 75% of peers
- This listing 87 · peer median 78
- Latency
- Faster than 10% of peers
- This listing 721 ms · peer median 205 ms
Where it loses the most points, and how to win them back
- Live 402 challenge −5
— Answer the paid path with a valid 402 challenge.
Now: Endpoint reachable; its 402 challenge was seen earlier (721 ms).
- Verified identity −5
— Claim the listing and prove control of its domain.
Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Paid endpoints
14 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.
https://agentresolver.vercel.app/api/provider-launch-check
$0.0500 / call
GET-first $0.05 USDC seller-side launch verification for machine-service providers. A no-parameter GET validates AgentResolver's known-good reference provider; optional provider fields can be supplied as query parameters. Production sellers should use POST for their complete onboarding packet. Passi
https://agentresolver.vercel.app/api/verified-resolve
$0.0200 / call
Paid $0.02 GET-first capability procurement plus bounded live verification. Supply goal and optional simple constraints in query parameters; POST remains available for schema-heavy constraints and multiple provider origins.
https://agentresolver.vercel.app/api/x402-settlement-verify
$0.0010 / call
x402 settlement verify and payment receipt verification for $0.001. Supply a Base transaction hash and optional expected recipient/amount as query parameters; after AgentResolver payment settles, the response independently checks the public Base receipt, EIP-3009 transaction shape, USDC Transfer log
https://agentresolver.vercel.app/api/x402-ping
$0.0010 / call
No-body $0.001 x402 settlement test for funded agents. Verifies wallet, facilitator, USDC payment, and paid delivery end-to-end; returns a timestamped pong plus machine-readable next paid actions only after successful settlement.
https://agentresolver.vercel.app/api/usdc-payment-check
$0.0010 / call
Paid $0.001 USDC x402 endpoint-safety and payment-contract check. Exact-intent alias of AgentResolver's canonical fail-closed x402 payment preflight; execution logic is shared with /api/x402-payment-preflight.
https://agentresolver.vercel.app/api/x402-preflight
$0.0010 / call
Paid $0.001 USDC x402 preflight for autonomous buyers. Exact-intent alias of AgentResolver's canonical fail-closed payment preflight; checks endpoint reachability and observed x402 payment terms before caller authorization.
https://agentresolver.vercel.app/api/prepayment-authorization-gate
$0.0010 / call
Paid $0.001 USDC prepayment authorization gate for autonomous x402 buyers. Returns the same fail-closed eligible/blocked decision and observed payment terms as AgentResolver's canonical payment preflight before the caller authorizes spend.
https://agentresolver.vercel.app/api/api-trust-security-preflight
$0.0010 / call
Paid $0.001 USDC API trust/security preflight focused on x402 payment safety. Checks public endpoint reachability plus observed payment recipient, price, network, asset, scheme and resource binding before caller authorization.
https://agentresolver.vercel.app/api/x402-transaction-path-payment-gate
$0.0010 / call
Paid $0.001 USDC x402 transaction-path payment gate for autonomous buyers. Uses AgentResolver's canonical fail-closed preflight engine to check endpoint reachability and observed recipient, amount, network, asset, scheme and resource binding before caller authorization.
https://agentresolver.vercel.app/api/x402-payment-preflight
$0.0010 / call
Verify a public x402 endpoint before paying it. AgentResolver performs one bounded HTTPS preflight and returns a fail-closed router decision plus the exact observed target payment terms: payTo recipient, USDC amount, network, asset, resource binding, x402 version and scheme, together with machine-re
https://agentresolver.vercel.app/api/batch-verified-resolve
$0.0500 / call
Resolve and live-verify up to four missing capability decisions in one bounded call, using unpaid MCP and x402/HTTP evidence.
https://agentresolver.vercel.app/api/agent-distribution-pack
$5.0000 / call
Seller-side agent distribution pack for API agent distribution, API discoverability for AI agents, MCP discoverability, MCP distribution, and agent-service launch. Audits live machine-readable discovery surfaces, diagnoses missing launch signals, and returns ready-to-commit discovery artifacts plus
https://agentresolver.vercel.app/api/managed-monitor-30d
$19.0000 / call
Thirty days of recurring managed monitoring for one public API, MCP server, or x402 service, targeting an hourly cadence without guaranteeing exact run times. Tracks machine-readiness, optional live MCP compatibility/tool-contract drift, and optional GET-safe x402 payment-contract drift with a durab
https://agentresolver.vercel.app/api/payment-guard
$0.0010 / call
AgentResolver Guard alias for the canonical Payment Preflight. Verify a live x402 payment contract before the caller authorizes spend; returns fail-closed eligible/blocked evidence and observed payment terms. The caller alone authorizes any target payment.
How to call
curl -sS -i -X GET https://agentresolver.vercel.app/api/provider-launch-check # expect HTTP 402 Payment Required (about 0.001 USDC/call)
https://agentresolver.vercel.app/mcp
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