presign-guard
Sanctions screen for a wallet address: is it on the OFAC list? Screens any chain's address (EVM, Solana, Tron, Bitcoin, XRP Ledger, Algorand) against the OFAC SDN list, synced from the US Treasury, plus theft, phishing and mixer reports for EVM addresses. Green/orange/red with the SDN entry (name, programs) when listed. For sellers screening who pays them and agents checking who they pay. Bulk: 100 checks for $0.80 via /v1/credits.
Offering
- Provider
- presign-guard.fizzl.eu
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Blockchain And Crypto
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://presign-guard.fizzl.eu/v1/screen- MIME type
- application/json
- First seen
- 2026-10-16T01:50:32.458Z
- Last seen
- Tags
- sanctions, OFAC, aml, compliance, wallet-screening
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact - Payment option 3
- 10000 atomic units
Atomic price: 10000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k · Asset: 31566704 · Scheme: exact - Payment option 4
- 100000 atomic units
Atomic price: 100000 · Network: stellar:pubnet · Asset: CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75 · Scheme: exact - Payment option 5
- 10000 atomic units
Atomic price: 10000 · Network: eip155:196 · Asset: 0x779ded0c9e1022225f8e0630b35a9b54be713736 · Scheme: exact - Payment option 6
- 0.01 USDC
Atomic price: 10000 · Network: eip155:143 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "10000",
"payTo": "ATWJ82T8nRdQwZnaysB68N5EpaSvLRsQP4h6eWmaJBH9"
},
{
"scheme": "exact",
"network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
"asset": "31566704",
"amount": "10000",
"payTo": "LOYVFSQ6ZTS2YWUW4GQ5L6VPP2TPIOXWYDACK53CPOHQQHLDMEMKJDXAX4"
},
{
"scheme": "exact",
"network": "stellar:pubnet",
"asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
"amount": "100000",
"payTo": "GCH2J5UAY24YNKA65MPAATVKWRCZZRZNF3JZKYYS5MIBZPG6U7WJ6CDQ"
},
{
"scheme": "exact",
"network": "eip155:196",
"asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
"amount": "10000",
"payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25"
},
{
"scheme": "exact",
"network": "eip155:143",
"asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
"amount": "10000",
"payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25"
}
]Observed health
- Status
- Healthy
- Latest latency
- 152 ms
- Average latency
- 255 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 7 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {
"address": {
"type": "string",
"minLength": 20,
"maxLength": 120,
"description": "The wallet address to screen, any chain: EVM (0x...), Solana, Tron, Bitcoin, XRP Ledger, Algorand, or another currency OFAC lists. The format tells the chain."
}
},
"required": [
"address"
]
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "The wallet address to screen, any chain: EVM (0x...), Solana, Tron, Bitcoin, XRP Ledger, Algorand, or another currency OFAC lists. The format tells the chain.",
"maxLength": 120,
"minLength": 20,
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"description": "address, format (evm, solana, tron, bitcoin, xrpl, algorand, other)",
"type": "object"
},
"checkedAt": {
"type": "string"
},
"grade": {
"enum": [
"SAFE",
"CAUTION",
"RISKY",
"AVOID"
],
"type": "string"
},
"one_liner": {
"type": "string"
},
"reasons": {
"items": {
"properties": {
"code": {
"type": "string"
},
"details": {},
"severity": {
"enum": [
"red",
"orange",
"info"
],
"type": "string"
}
},
"required": [
"code",
"severity"
],
"type": "object"
},
"type": "array"
},
"receipt": {
"description": "Signature over this whole answer (without receipt.signature), so the verdict can be verified later: EIP-191 personal_sign over canonical JSON (sorted keys, compact, ASCII-escaped). Signer addresses: /.well-known/presign-guard-signer.json; free check: POST /v1/verify.",
"properties": {
"algorithm": {
"enum": [
"eip191-canonical-json-v1"
],
"type": "string"
},
"cert": {
"description": "The payout wallet's certificate for this signing key: personal_sign by authority over 'fizzl receipt signer\\nservice: <service>\\nsigner: <signer>\\nvalid_from: <date>'. Pin the payout wallet and a rotated key still verifies.",
"properties": {
"authority": {
"type": "string"
},
"service": {
"type": "string"
},
"signature": {
"type": "string"
},
"signer": {
"type": "string"
},
"valid_from": {
"type": "string"
}
},
"type": "object"
},
"input_sha256": {
"description": "sha256 of canonical JSON {route, input}: your body (POST) or query parameters (GET)",
"type": "string"
},
"payment": {
"description": "The payment behind this answer, from your x402 payment payload. EVM: payer + EIP-3009 nonce; find the settlement as AuthorizationUsed(payer, nonce) on the asset contract. Solana: payer + sha256 of the signed transaction you sent.",
"properties": {
"amount": {
"type": "string"
},
"asset": {
"type": "string"
},
"network": {
"type": "string"
},
"nonce": {
"type": "string"
},
"pay_to": {
"type": "string"
},
"payer": {
"type": "string"
},
"proof": {
"enum": [
"eip3009",
"svm-transaction"
],
"type": "string"
},
"transaction_sha256": {
"type": "string"
}
},
"type": "object"
},
"request_id": {
"type": "string"
},
"route": {
"type": "string"
},
"signature": {
"type": "string"
},
"signed_at": {
"type": "string"
},
"signer": {
"type": "string"
}
},
"required": [
"request_id",
"route",
"input_sha256",
"signed_at",
"signer",
"algorithm",
"signature"
],
"type": "object"
},
"sanctions": {
"description": "list (OFAC SDN), listed, matches (uid, name, type, programs, currency), published (the list's date), source",
"type": "object"
},
"sources": {
"items": {
"type": "string"
},
"type": "array"
},
"verdict": {
"enum": [
"green",
"orange",
"red"
],
"type": "string"
}
},
"required": [
"verdict",
"grade",
"one_liner",
"reasons",
"sanctions"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}