Identity & Enrichment · x402 · early usage

Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wa…

by human.twin3.ai · discovered, not yet claimed by its owner · updated 2026-10-14

30d calls214

30d payers8

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in one paid call. Returns two ZK-style outputs about any EVM wallet: (1) total humanity score 0-255 (15 = baseline reCAPTCHA, 45 = + Google OAuth, 70 = + Apple ID, 105 = + 2FA, 255 = full stack), with optional `min_score=N` for a yes/no `passes` verdict; (2) per-method verification check via `check=telegram,apple,g2fa,...` — buyer must NAME the methods to ask about, we never enumerate the full set. Backed by 141,871 Twin Matrix Soulbound Tokens on BNB Chain plus the canonical humanity registry off-chain. The underlying verification list never leaves Twin3 — only verdicts.

Tags: bazaar

Call contract

Method: GET
Input: query parameters
Output: json
Last paid call: 2026-10-14

Input example from Bazaar metadata

{
  "check": "telegram,apple",
  "include": "verified_at,dimensions_filled",
  "match": "age:25-34,interest:travel,income:200-500+",
  "min_score": "70",
  "wallet": "0x1234567890123456789012345678901234567890"
}

Output example

{
  "confidence": "high",
  "dimensionsFilled": 8,
  "isHuman": true,
  "lastVerifiedAt": "2026-03-02T09:41:00Z",
  "match": {
    "conditions": [
      {
        "key": "age",
        "pass": true,
        "value": "25-34"
      },
      {
        "key": "interest",
        "pass": true,
        "value": "travel"
      }
    ],
    "matched": true
  },
  "methodsCount": 4,
  "passes": true,
  "queriedAt": "2026-05-10T12:00:00Z",
  "sbtId": 142031,
  "score": 105,
  "scoreCeiling": 255,
  "scoreFloor": 15,
  "scoreSource": "firestore",
  "tier": "high",
  "verifications": {
    "apple": false,
    "telegram": true
  },
  "verifiedAt": "2025-09-12T03:14:22Z",
  "wallet": "0x1234567890123456789012345678901234567890"
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/30152.json for the price and payment options.
Pay. Call GET https://human.twin3.ai/v1/human. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, eip155:196, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.001 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, eip155:196
Demand: 214 calls · 8 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.001	0xcD3273893d1c8DF15A4D6bc411aA3D25A60Fdc60	300s
exact	eip155:196 eip155:196	0x779ded0c9e1022225f8e0630b35a9b54be713736	1000	0x0FFE96d5123dc144753034F6F388aceD830e5A5f	300s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xcD3273893d1c8DF15A4D6bc411aA3D25A60Fdc60",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:196",
    "payTo": "0x0FFE96d5123dc144753034F6F388aceD830e5A5f",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {},
  "type": "string"
}

Examples

curl

curl "https://human.twin3.ai/v1/human"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://human.twin3.ai/v1/human");
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://human.twin3.ai/v1/human")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: human.twin3.ai
Endpoint: https://human.twin3.ai/v1/human
Machine-readable: /resources/30152.json