Watchtower
VerificationDeterministic sanctions screening for AI agents across OFAC/UN/EU/UK lists; x402 USDC on Base, no signup.
Pay from $0.02 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
ASSESSMENT
updated 3h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 1433ms
- avg response
- 1433ms
- total checks
- 1
compliance A (11/12)
11 of 12 x402 conformance checks pass. Full checklist below.
price $0.02 (p25 in Verification)
- price (min)
- $0.02
- category percentile (min)
- p25 in Verification
- endpoints / prices
- 1 / 1
- model
- flat
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
WHAT IT DOES
ai-derivedProvides compliance and data-integrity APIs including sanctions screening, KYB checks, identifier validation, and risk assessment.
- category
- compliance-api
- in
- query params
- auth
- api key
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /v1/screen | $0.02 | Base | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/screen returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://watchtower-api.com/v1/screen'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"resource": "https://watchtower-api.com/v1/screen"
},
"payTo": "0x8A060366289D1238F2bE62f3e462dDC7173b9ff2",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://watchtower-api.com/v1/screen",
"tags": [
"sanctions",
"compliance",
"screening",
"aml"
],
"mimeType": "application/json",
"description": "Screen a person/company/vessel name against OFAC (SDN + Consolidated), UN, EU, UK, Canada, Australia, France, Switzerland, US export-control (BIS/State), and US SAM procurement/benefit exclusions. Deterministic typo-tolerant fuzzy matching with versioned list snapshots.",
"serviceName": "Watchtower Sanctions Screening"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"name": "Vladimir Putin"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"match": true,
"query": "Vladimir Putin",
"matches": [
{
"uid": "OFAC-SDN-36991",
"name": "PUTIN, Vladimir Vladimirovich",
"type": "person",
"score": 1,
"source": "OFAC-SDN",
"programs": [
"RUSSIA-EO14024"
]
}
],
"algorithm": "wt-match-5",
"snapshot_version": "53ae76305968fa31"
}
}
},
"name": "Sanctions Name Screening",
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"name"
],
"properties": {
"dob": {
"type": "string",
"maxLength": 40,
"description": "Optional date of birth or birth year — excludes candidates whose known DOB contradicts it"
},
"name": {
"type": "string",
"maxLength": 500,
"minLength": 2,
"description": "Person, company, vessel, or aircraft name"
},
"limit": {
"type": "integer",
"maximum": 50,
"minimum": 1
},
"types": {
"type": "array",
"items": {
"enum": [
"person",
"entity",
"vessel",
"aircraft"
]
}
},
"threshold": {
"type": "number",
"maximum": 1,
"minimum": 0.5
},
"nationality": {
"type": "string",
"maxLength": 60,
"description": "Optional nationality/country — excludes candidates whose known nationality contradicts it"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
}
},
"output": {
"type": "object"
}
}
},
"category": "security",
"description": "Screen names against OFAC + UN + EU + UK + Canada + Australia + France + Switzerland + US export-control + US SAM exclusions lists — deterministic fuzzy matching, pay per call via x402.",
"discoverable": true
}
},
"x402Version": 2
}
] UPTIME
RECENT CHECKS
OVER TIME
All charts share the 90d window selected here. Every series is also served as JSON at /api/v1/services/watchtower/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted).
COMPLIANCE
11/12 checks pass · grade A- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- response mimeType declared
- served over HTTPS
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