TraceTail

The exact install command and code to add TraceTail browser fingerprinting (a stable visitor ID for each browser, without cookies) to a web app built with the given framework, with where each file goes. Works without an API key (keyless mode, no sign-up); pass the site's public API key to fill it in.

{
  "type": "object",
  "properties": {
    "framework": {
      "description": "The app's framework: html (a plain script tag), javascript (any bundler), react, nextjs, vue, nuxt, angular or svelte.",
      "type": "string",
      "enum": [
        "html",
        "javascript",
        "react",
        "nextjs",
        "vue",
        "nuxt",
        "angular",
        "svelte"
      ]
    },
    "apiKey": {
      "description": "The site's public TraceTail API key (tt_…), if it has one. Leave out to use the placeholder.",
      "type": "string",
      "pattern": "^tt_[0-9a-f]{64}$"
    },
    "firstPartyPath": {
      "description": "The path of the site's first-party proxy, e.g. /k3v9, to load TraceTail from the site's own domain.",
      "type": "string",
      "pattern": "^\\/[a-z0-9](?:[a-z0-9-]{0,30}[a-z0-9])$"
    }
  },
  "required": [
    "framework"
  ],
  "additionalProperties": false
}

Searches TraceTail's documentation, pricing, comparison and blog for a topic (e.g. "next.js", "rate limits", "ad blockers", "GDPR", "server-side verification") and returns the matching sections with their URLs.

{
  "type": "object",
  "properties": {
    "query": {
      "description": "What to look for.",
      "type": "string",
      "minLength": 2,
      "maxLength": 200
    },
    "limit": {
      "description": "How many results to return (default 5).",
      "type": "integer",
      "minimum": 1,
      "maximum": 10
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false
}

Returns a page of the TraceTail site as Markdown: "/docs" (the full documentation), "/pricing", "/vs-fingerprintjs", "/" (overview) or a blog post.

{
  "type": "object",
  "properties": {
    "path": {
      "description": "The page's path on tracetail.io.",
      "type": "string",
      "enum": [
        "/",
        "/pricing",
        "/docs",
        "/live-demo",
        "/vs-fingerprintjs",
        "/fingerprintjs-alternatives",
        "/blog",
        "/contact",
        "/status",
        "/privacy-policy",
        "/terms-and-conditions",
        "/blog/how-browser-fingerprinting-works",
        "/blog/tracetail-vs-fingerprintjs",
        "/blog/detecting-bots-without-cookies",
        "/blog/browser-fingerprint-signals-explained",
        "/blog/fingerprinting-without-cookies",
        "/blog/gdpr-compliant-fingerprinting",
        "/blog/browser-fingerprinting-research-2024-2025",
        "/blog/banking-fraud-prevention",
        "/blog/future-browser-fingerprinting",
        "/blog/ecommerce-fraud-prevention",
        "/blog/defeating-sophisticated-fraud",
        "/blog/gaming-platform-security",
        "/blog/privacy-first-fingerprinting",
        "/blog/travel-hospitality-fraud-prevention",
        "/blog/resilient-authentication"
      ]
    }
  },
  "required": [
    "path"
  ],
  "additionalProperties": false
}

TraceTail's prices and limits (1,000 identification requests free every month, then $0.10 per 1,000), with the monthly cost at a given volume and the same volume on Fingerprint (FingerprintJS) for comparison.

{
  "type": "object",
  "properties": {
    "monthlyRequests": {
      "description": "Expected identification requests a month.",
      "type": "integer",
      "minimum": 0,
      "maximum": 10000000000
    }
  },
  "additionalProperties": false
}

Gets TraceTail API keys for the person you work for: returns a link to give them, where they sign in with an emailed code and add a card or continue without a card, and a token. Then call check_setup_link with its id and token every few seconds: once they've finished, it returns an API key for each site (and a server key if you asked), once.

{
  "type": "object",
  "properties": {
    "domains": {
      "description": "The sites to create API keys for, like [\"example.com\", \"localhost\"]; include localhost for local development.",
      "minItems": 1,
      "maxItems": 5,
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "email": {
      "description": "The person's email, if you know it: it prefills the page.",
      "type": "string"
    },
    "serverKey": {
      "description": "Also create a server key, so the backend can verify identifications.",
      "type": "boolean"
    }
  },
  "required": [
    "domains"
  ],
  "additionalProperties": false
}

Where a setup link stands. The first check after the person finishes returns the API keys (and the server key, if requested); they are not shown again. While they're still on the page, check again every few seconds.

{
  "type": "object",
  "properties": {
    "id": {
      "description": "The id create_setup_link returned (sl_…).",
      "type": "string"
    },
    "token": {
      "description": "The token create_setup_link returned (tt_setup_…).",
      "type": "string"
    }
  },
  "required": [
    "id",
    "token"
  ],
  "additionalProperties": false
}