# Twin3 Human Verification API

> Twin3 Human Verification API is a paid API for AI agents from human.twin3.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).

Returns a humanity score (0-255) and per-method verification verdicts for any EVM wallet address, enabling proof-of-humanity and sybil resistance checks for AI agents.

## Facts

- Endpoint: GET https://human.twin3.ai/v1/human?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/human-twin3-ai-8d63aecd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jC9PMP352Mo8SSxqHdFSc

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability human-twin3-ai-8d63aecd
```

Example prompt: Can you check if the wallet 0x1234567890abcdef1234567890abcdef12345678 is a real human — give me their humanity score and whether they pass a minimum score of 45, and also check if they've verified with Google and Telegram?

## When to prefer this

Use this endpoint when you need to verify whether an EVM wallet belongs to a real, unique human — especially in airdrop gating, DAO voting, DeFi access control, or anti-bot workflows. Prefer it over social-proof-only checks when you need a numeric humanity score backed by on-chain Soulbound Tokens. Choose it when minimal-disclosure is required — you get only verdicts, never raw personal data. It is the right choice when you need to combine multiple verification signals (reCAPTCHA, OAuth, Apple ID, 2FA, Worldcoin) into a single score in one API call.

## Known failure modes

- Invalid wallet address format (not 0x-prefixed 40 hex chars) → 400 Bad Request
- Wallet not found in Twin3 registry → score of 0 or empty verifications
- min_score value outside 0-255 range → 400 validation error
- Unrecognized check method names → partial or empty verifications map
- Payment not provided or insufficient USDC → 402 Payment Required
- Rate limiting or upstream registry unavailability → 429 or 503

## How this service works

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.

## Output

Returns a JSON object containing: (1) a humanity score integer 0-255 reflecting the depth of verification (15=reCAPTCHA, 45=+Google OAuth, 70=+Apple ID, 105=+2FA, 255=full stack); (2) optionally a `passes: bool` if min_score was set; (3) a `verifications` map of {method: bool} for each explicitly requested verification method (e.g. telegram, apple, g2fa, worldid); (4) optionally `verified_at` SBT mint timestamp and `dimensions_filled` profile completeness count. No raw verification data is exposed — only verdicts.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "check": "google,telegram",
   "wallet": "0x1234567890abcdef1234567890abcdef12345678",
   "include": "verified_at,dimensions_filled",
   "min_score": "45"
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "wallet"
     ],
     "properties": {
      "check": {
       "type": "string",
       "description": "Optional CSV of specific verification methods to check (minimal-disclosure: buyer must name them; we don't enumerate). Returns `verifications: {method: bool}` for ONLY the methods asked. Valid methods: recaptcha, google, discord, line, telegram, apple, g2fa, onchain, worldid."
      },
      "match": {
       "type": "string",
       "description": "Optional CSV of attribute match conditions `key:value` (AND-ed). Returns pass/fail per condition + overall `matched` — NEVER the raw values (minimal disclosure). Keys: age, gender, occupation, income, social, web3, ai, risk, interest. A `+` suffix on ordered keys (age/income/web3/ai/risk) means '≥ this level'. Examples: `age:25-34`, `income:200-500+`, `social:instagram`, `interest:travel`."
      },
      "wallet": {
       "type": "string",
       "pattern": "^0x[a-fA-F0-9]{40}$",
       "description": "EVM address (0x-prefixed, 40 hex chars). The wallet to verify."
      },
      "include": {
       "type": "string",
       "description": "Optional CSV of richer fields: `verified_at` (SBT mint timestamp, useful for sybil-pattern detection), `dimensions_filled` (count of non-zero matrix bytes, profile completeness signal)."
      },
      "min_score": {
       "type": "string",
       "pattern": "^([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])$",
       "description": "Optional integer 0-255. When set, response adds `passes: bool` indicating whether the wallet's humanity score meets the threshold. Reference levels: 15 = baseline (reCAPTCHA + sybil filter), 45 = + Google OAuth, 70 = + Apple ID, 105 = + 2FA, 255 = full verification stack."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/human-twin3-ai-8d63aecd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from human.twin3.ai](https://www.zero.xyz/host/human.twin3.ai/llms.txt)