nsgoods Sanctions Screening Oracle
VerificationMulti-chain OFAC SDN exact-address screening. 960 sanctioned addresses across 19 chains, parsed directly from the US Treasury sdn_advanced.xml, including the Solana entries the Chainalysis on-chain oracle cannot see because it is EVM only. Every response is ECDSA-signed and carries sdn_snapshot_at, so a caller can prove which version of the list was used. The raw source file is hashed every six hours into a public append-only chain anchored to Bitcoin: https://sanctions.nsgoods.org/sdn-log/. Free preview on every endpoint, no account and no API key. Settles in USDC on Solana mainnet.
Pay from $0.005 per request in USDC on Solana, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-07-28 · no on-chain settlement recorded yet
ASSESSMENT
updated 4h 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
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 1831ms
- avg response
- 1199ms
- total checks
- 24
compliance A (13/13)
13 of 13 x402 conformance checks pass. Full checklist below.
price $0.005 (p35 in Verification)
- price (min)
- $0.005
- category percentile (min)
- p35 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.
- domain age
- 99d
- registrar
- Cloudflare, Inc.
- hosting
- custom
- domain created
- 2026-04-19
Identity facts, not a risk score.
traction $0 30d · 0 buyers
- volume 30d
- $0
- buyers 30d
- 0
- settlements 30d
- 0
- first settlement
- ---
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- $0
- max settlement 30d
- $0
- settled via
- -
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedProvides sanctions screening services for Solana blockchain addresses
- category
- sanctions-screening
- in
- query params
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /screen | $0.005 | Solana | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /screen returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://sanctions.nsgoods.org/screen'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
},
"payTo": "35tCuyL3E7M88jfhTeEaRxhrbuKFyQLWgxJQyf5QcLLe",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://sanctions.nsgoods.org/screen",
"mimeType": "application/json",
"description": "Signed multi-chain OFAC SDN address screening (Solana-settled USDC)"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "ethereum",
"address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96"
}
},
"output": {
"type": "json",
"example": {
"chain": "ethereum",
"address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
"sources": {
"ofac_sdn": "ok"
},
"verdict": "deny",
"coverage": {
"malicious_heuristic": "not_checked",
"total_sdn_addresses": 960
},
"signature": "0x…",
"signed_by": "0x57fF0F084Cba33e6761503f90eEF0Da9F159350c",
"sanctioned": true,
"matched_label": "ETH",
"sdn_snapshot_at": "2026-07-24T20:02:09Z"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"type": "string",
"description": "Chain hint, e.g. ethereum/bitcoin/solana/tron. Advisory — matching is global by address value."
},
"address": {
"type": "string",
"description": "Raw blockchain address (EVM 0x-hex, or base58/bech32 for BTC/SOL/TRX/etc.)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"address",
"sanctioned",
"verdict",
"signed_by",
"signature"
],
"properties": {
"chain": {
"type": [
"string",
"null"
]
},
"address": {
"type": "string"
},
"verdict": {
"enum": [
"deny",
"clean"
],
"type": "string"
},
"signature": {
"type": "string"
},
"signed_by": {
"type": "string"
},
"sanctioned": {
"type": "boolean"
},
"matched_label": {
"type": [
"string",
"null"
]
},
"sdn_snapshot_at": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/nsgoods-sanctions-screening-oracle/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). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
COMPLIANCE
13/13 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
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) · click to expand
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