Quick ZK Auth v1
Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.
50000 (raw units)
price
4
calls / 30d
2
unique payers
2026-09-06
updated
Provider
zk.quickai.build · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x85557C90027354eAeFFe9Ee4B4f4014818d8D3e1",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"min_balance_usdc": 1000,
"tier": "basic",
"wallet": "0x0000000000000000000000000000000000000001"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"block_number": 25000000,
"calldata": "0x",
"claims": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"balance_proof_type": "rpc_attestation",
"balance_qualifier_met": true,
"min_balance_tier": "1000 USDC",
"nullifier_scope": "quickzkauth-v1",
"observed_balance_usdc": 2500.5,
"ownership_proof_type": "semaphore_zk",
"ownership_proven": true,
"snapshot_block": 25000000
},
"erc8004_compatible": true,
"expiry": "2026-06-03T01:30:00.000Z",
"job_id": "550e8400-e29b-41d4-a716-446655440000",
"on_chain_verifiable": false,
"privacy_score": "maximal",
"proof_hash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"service_version": "1.0.1",
"timestamp": "2026-06-03T01:00:00.000Z",
"valid": true,
"validation_registry_hint": {
"reference_uri": "https://zk.quickai.build/proof/550e8400-e29b-41d4-a716-446655440000",
"suggested_evidence_type": "zk_proof",
"suggested_tag": "base_wallet_qualification"
},
"verified_by": "Quick AI — Coeur d'Alene, Idaho, US",
"verifier_contract": "0x0000000000000000000000000000000000000000",
"x402_payment_ref": {
"amount_usdc": "0.05",
"network": "eip155:8453",
"payer": "0x0000000000000000000000000000000000000002",
"poll_uri": "https://zk.quickai.build/proof/550e8400-e29b-41d4-a716-446655440000",
"resource": "POST /prove",
"status": "settled",
"tx_hash": "0xabc1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcd"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"min_balance_usdc": {
"description": "Minimum USDC balance threshold on Base",
"minimum": 1,
"type": "integer"
},
"tier": {
"default": "basic",
"description": "Proof tier (basic or standard qualification)",
"enum": [
"basic",
"standard"
],
"type": "string"
},
"wallet": {
"description": "Base wallet to prove ownership and USDC balance for",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
}
},
"required": [
"wallet",
"min_balance_usdc"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"block_number": {
"type": "integer"
},
"calldata": {
"type": "string"
},
"claims": {
"additionalProperties": false,
"properties": {
"asset": {
"type": "string"
},
"balance_proof_type": {
"enum": [
"rpc_attestation",
"zk_range"
],
"type": "string"
},
"balance_qualifier_met": {
"type": "boolean"
},
"min_balance_tier": {
"type": "string"
},
"nullifier_scope": {
"type": "string"
},
"observed_balance_usdc": {
"type": "number"
},
"ownership_proof_type": {
"enum": [
"semaphore_zk"
],
"type": "string"
},
"ownership_proven": {
"type": "boolean"
},
"snapshot_block": {
"type": "integer"
}
},
"required": [
"ownership_proven",
"ownership_proof_type",
"balance_qualifier_met",
"balance_proof_type",
"min_balance_tier",
"asset",
"snapshot_block",
"nullifier_scope"
],
"type": "object"
},
"erc8004_compatible": {
"type": "boolean"
},
"expiry": {
"type": "string"
},
"job_id": {
"format": "uuid",
"type": "string"
},
"on_chain_verifiable": {
"type": "boolean"
},
"privacy_score": {
"type": "string"
},
"proof_hash": {
"type": "string"
},
"service_version": {
"type": "string"
},
"timestamp": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"validation_registry_hint": {
"additionalProperties": false,
"properties": {
"reference_uri": {
"type": "string"
},
"suggested_evidence_type": {
"type": "string"
},
"suggested_tag": {
"type": "string"
}
},
"required": [
"suggested_evidence_type",
"suggested_tag"
],
"type": "object"
},
"verified_by": {
"type": "string"
},
"verifier_contract": {
"type": "string"
},
"x402_payment_ref": {
"additionalProperties": false,
"properties": {
"amount_usdc": {
"type": "string"
},
"network": {
"type": "string"
},
"payer": {
"type": "string"
},
"poll_uri": {
"type": "string"
},
"resource": {
"type": "string"
},
"status": {
"enum": [
"pending_settlement",
"settled"
],
"type": "string"
},
"tx_hash": {
"type": "string"
}
},
"required": [
"status",
"network"
],
"type": "object"
}
},
"required": [
"verified_by",
"valid",
"job_id",
"claims",
"proof_hash",
"block_number",
"expiry",
"verifier_contract",
"calldata",
"on_chain_verifiable",
"timestamp",
"privacy_score",
"erc8004_compatible",
"validation_registry_hint",
"x402_payment_ref",
"service_version"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://zk.quickai.build/prove" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://zk.quickai.build/prove");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://zk.quickai.build/prove")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/4332.json, and this resource appears in /discovery/resources and /discovery/search.