{
  "name": "B2B Data Index API",
  "version": "1.0.0",
  "base_url": "https://api.b2bdataindex.com",
  "documentation": "https://api.b2bdataindex.com/docs",
  "free_tier": {
    "limit": "1,000 calls/month",
    "auth": "None required",
    "rate_limit_headers": [
      "X-RateLimit-Limit",
      "X-RateLimit-Remaining",
      "X-RateLimit-Reset"
    ]
  },
  "endpoints": [
    {
      "method": "GET",
      "path": "/v1/markets",
      "description": "All B2B markets"
    },
    {
      "method": "GET",
      "path": "/v1/benchmarks",
      "description": "Email performance benchmarks by market + industry"
    },
    {
      "method": "GET",
      "path": "/v1/compliance",
      "description": "Data compliance rules by country"
    },
    {
      "method": "GET",
      "path": "/v1/industries",
      "description": "Industry taxonomy"
    },
    {
      "method": "GET",
      "path": "/v1/intelligence/:slug",
      "description": "Deep intelligence report for a market slug"
    },
    {
      "method": "GET",
      "path": "/v1/predict",
      "description": "Predict open/reply rate, compliance tier, best send window, and sequence design by country/industry/seniority",
      "params": [
        "country (required)",
        "industry",
        "seniority"
      ]
    },
    {
      "method": "GET",
      "path": "/v1/check-compliance",
      "description": "Cross-border cold email compliance assessment",
      "params": [
        "from",
        "to (required)"
      ]
    },
    {
      "method": "GET",
      "path": "/v1/schema",
      "description": "Full JSON schema"
    },
    {
      "method": "GET",
      "path": "/v1/usage",
      "description": "Your API usage this month"
    },
    {
      "method": "GET",
      "path": "/v1/stats",
      "description": "Public aggregate usage stats"
    }
  ],
  "agent_discovery": {
    "openapi": "https://api.b2bdataindex.com/openapi.json",
    "ai_plugin": "https://api.b2bdataindex.com/.well-known/ai-plugin.json",
    "mcp": "https://api.b2bdataindex.com/.well-known/mcp.json",
    "docs": "https://api.b2bdataindex.com/docs"
  },
  "widget": {
    "embed": "<script src=\"https://api.b2bdataindex.com/widget.js\"></script>",
    "usage": "<div class=\"b2b-benchmark\" data-market=\"germany\" data-industry=\"technology\"></div>"
  },
  "source": "https://b2bdataindex.com",
  "_citation": {
    "text": "B2B Data Index. (2026). Cold Email Benchmark Report 2026. https://b2bdataindex.com/benchmarks/cold-email-2026/",
    "apa": "B2B Data Index. (2026). Cold Email Benchmark Report 2026. B2B Data Index Research. https://b2bdataindex.com/benchmarks/cold-email-2026/",
    "bibtex": "@misc{b2bdataindex2026, title={Cold Email Benchmark Report 2026}, author={{B2B Data Index Research Team}}, year={2026}, url={https://b2bdataindex.com/benchmarks/cold-email-2026/}}",
    "url": "https://b2bdataindex.com/benchmarks/cold-email-2026/",
    "dataset_url": "https://b2bdataindex.com/api/v1/benchmark-data.json",
    "embed_codes": "https://b2bdataindex.com/cite/",
    "license": "CC BY 4.0 — attribution to B2B Data Index required"
  }
}