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Examples

Binance Example

Under Development: This API is currently in development. Documentation and endpoints may change.

End-to-End Web Proof Workflow

This example demonstrates the complete workflow of generating and verifying a Web Proof using the Web Prover Server.

Step 1: Generate a Web Proof

First, generate a Web Proof for an API call:

curl -X POST https://web-prover.vlayer.xyz/api/v1/prove \
  -H "Content-Type: application/json" \
  -H "x-client-id: 4f028e97-b7c7-4a81-ade2-6b1a2917380c" \
  -H "Authorization: Bearer jUWXi1pVUoTHgc7MOgh5X0zMR12MHtAhtjVgMc2DM3B3Uc8WEGQAEix83VwZ" \
  -d '{
    "url": "https://data-api.binance.vision/api/v3/exchangeInfo?symbol=ETHUSDC",
    "headers": []
  }'
const response = await fetch('https://web-prover.vlayer.xyz/api/v1/prove', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-client-id': '4f028e97-b7c7-4a81-ade2-6b1a2917380c',
    'Authorization': 'Bearer jUWXi1pVUoTHgc7MOgh5X0zMR12MHtAhtjVgMc2DM3B3Uc8WEGQAEix83VwZ'
  },
  body: JSON.stringify({
    url: 'https://data-api.binance.vision/api/v3/exchangeInfo?symbol=ETHUSDC',
    headers: []
  })
});

const presentation = await response.json();
console.log(JSON.stringify({
  ...presentation,
  data: presentation.data.substring(0, 100) + '...'
}, null, 2));

The included credentials are for limited public use. For production use, please contact our team.

Response:

{
  "data": "014000000000000000899cdccd31337c96bb9e519aa438ed73cdb47dda5c80e995ef0a1c04bf6c563730cde41724dafc1391b1b81acc5d989a7f7add8...",
  "version": "0.1.0-alpha.12",
  "meta": {
    "notaryUrl": "https://test-notary.vlayer.xyz/v0.1.0-alpha.12"
  }
}

Step 2: Verify the Web Proof

Now verify the generated Web Proof by sending the json from the /prove response:

curl -X POST https://web-prover.vlayer.xyz/api/v1/verify \
  -H "Content-Type: application/json" \
  -H "x-client-id: 4f028e97-b7c7-4a81-ade2-6b1a2917380c" \
  -H "Authorization: Bearer jUWXi1pVUoTHgc7MOgh5X0zMR12MHtAhtjVgMc2DM3B3Uc8WEGQAEix83VwZ" \
  -d '{
    "data": "014000000000000000899cdccd31337c96bb9e519aa438ed73cdb47dda5c80e995ef0a1c04bf6c563730cde41724dafc1391b1b81acc5d989a7f7add8...",
    "version": "0.1.0-alpha.12",
    "meta": {
      "notaryUrl": "https://test-notary.vlayer.xyz/v0.1.0-alpha.12"
    }
  }'
const response = await fetch('https://web-prover.vlayer.xyz/api/v1/verify', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-client-id': '4f028e97-b7c7-4a81-ade2-6b1a2917380c',
    'Authorization': 'Bearer jUWXi1pVUoTHgc7MOgh5X0zMR12MHtAhtjVgMc2DM3B3Uc8WEGQAEix83VwZ'
  },
  body: JSON.stringify(presentation)
});

const data = await response.json();
console.log(JSON.stringify(data, null, 2));

Response:

{
  "success": true,
  "serverDomain": "data-api.binance.vision",
  "notaryKeyFingerprint": "a7e62d7f17aa7a22c26bdb93b7ce9400e826ffb2c6f54e54d2ded015677499af",
  "request": {
    "method": "GET",
    "url": "/api/v3/exchangeInfo?symbol=ETHUSDC",
    "version": "HTTP/1.1",
    "headers": [
      ["connection", "close"],
      ["host", "data-api.binance.vision"]
    ],
    "body": null,
    "raw": "474554202f6170692f76332f65786368616e6765496..."
  },
  "response": {
    "status": 200,
    "version": "HTTP/1.1",
    "headers": [
      ["date", "Thu, 02 Oct 2025 04:27:38 GMT"],
      ["content-type", "application/json;charset=UTF-8"],
      ["content-length", "5471"],
      ["x-mbx-uuid", "aac63137-8fe9-4780-8571-560d75624e0f"]
    ],
    "body": "{\"timezone\":\"UTC\",\"serverTime\":1759379258989,\"symbols\":[{\"symbol\":\"ETHUSDC\",\"status\":\"TRADING\",\"baseAsset\":\"ETH\",\"baseAssetPrecision\":8,\"quoteAsset\":\"USDC\",\"quotePrecision\":8,\"orderTypes\":[\"LIMIT\",\"LIMIT_MAKER\",\"MARKET\"],\"icebergAllowed\":true,\"isSpotTradingAllowed\":true,\"isMarginTradingAllowed\":true,\"filters\":[{\"filterType\":\"PRICE_FILTER\",\"minPrice\":\"0.01000000\",\"maxPrice\":\"1000000.00000000\"}],\"defaultSelfTradePreventionMode\":\"EXPIRE_MAKER\"}]}",
    "raw": "485454502f312e3120323030204f4b0d0a446174653..."
  }
}