WebsterBerry Synaptic
https://synaptic.websterberrymarketing.com/agents/01-dependency-vuln-checkPay-per-call US public data for agents: OFAC, SEC, FMCSA, NPI, VIN recalls, SAM.gov. x402 USDC.
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+, 69.8/100), 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 (434 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 | 27/27 probes succeeded over 30 days (100%). |
| Resource declaration | 10/10 | Declares 10 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 24% of peers
- This listing 434 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 (434 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
10 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://synaptic.websterberrymarketing.com/agents/01-dependency-vuln-check
Known security vulnerabilities (CVE/GHSA) for a specific package version, with fixed versions. Source: OSV.dev.
https://synaptic.websterberrymarketing.com/agents/02-sec-filing-digest
Digest of a public company's latest SEC filings (10-K, 10-Q, 8-K), recent insider filings and key annual financials. Source: SEC EDGAR.
https://synaptic.websterberrymarketing.com/agents/03-provider-verification
Verify a US healthcare provider or organization: NPI status, name, credential, specialty and practice location. Source: CMS NPI Registry.
https://synaptic.websterberrymarketing.com/agents/04-carrier-safety-check
Check a US motor carrier by USDOT or MC number: allowed to operate, operating authority, insurance on file, safety rating, fleet size and out-of-service rates. Source: FMCSA.
https://synaptic.websterberrymarketing.com/agents/05-vin-recall-check
Decode a 17-character VIN (make, model, year, body, engine) and list NHTSA safety recalls for that vehicle. Source: NHTSA vPIC and Recalls APIs.
https://synaptic.websterberrymarketing.com/agents/06-email-domain-validator
Validate an email address or domain before outreach: syntax, MX records, SPF and DMARC, disposable and role-based detection, free-mail flag and domain age.
https://synaptic.websterberrymarketing.com/agents/07-federal-contractor-lookup
Look up a US federal contractor in SAM.gov by UEI or legal business name: registration status and expiration, CAGE code, exclusion flag, NAICS codes and business types.
https://synaptic.websterberrymarketing.com/agents/08-property-hazard-snapshot
Hazard snapshot for a US street address: FEMA flood zone (and whether it is a Special Flood Hazard Area) plus active National Weather Service alerts. Sources: US Census geocoder, FEMA NFHL, NOAA.
https://synaptic.websterberrymarketing.com/agents/09-product-recall-check
Search recalls for a product or brand: US CPSC consumer product recalls plus FDA enforcement reports for food, drugs and medical devices.
https://synaptic.websterberrymarketing.com/agents/10-counterparty-screen
Screen a person or business name against the US Treasury OFAC SDN sanctions list (including aliases), and optionally confirm an EIN against IRS Publication 78 nonprofit data.
How to call
curl -sS -i -X GET https://synaptic.websterberrymarketing.com/agents/01-dependency-vuln-check # expect HTTP 402 Payment Required (about 0.01 USDC/call)https://synaptic.websterberrymarketing.com/mcpListed in
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