is-real-biz

Pay-per-call API to verify whether a domain is a real business. Two payment rails (x402 + prepaid). Built for AI agents.

x402 (zero signup, fully autonomous)

curl 'https://is-real-biz.is-real-biz.workers.dev/check?domain=stripe.com' -H 'X-PAYMENT: <base64 USDC payload>'

Or via the official @x402/fetch client. Auto-listed in the x402 Bazaar after first paid call.

Prepaid credits (50 free, no card)

curl -X POST https://is-real-biz.is-real-biz.workers.dev/billing/signup -H 'content-type: application/json' -d '{"email":"you@example.com"}'
curl 'https://is-real-biz.is-real-biz.workers.dev/check?domain=stripe.com' -H 'authorization: Bearer irb_live_...'
# Top-up with a promo code (request one from the operator):
curl -X POST https://is-real-biz.is-real-biz.workers.dev/billing/promo -H 'content-type: application/json' -d '{"api_key":"irb_live_...","code":"WELCOME"}'

Batch (up to 50)

curl -X POST https://is-real-biz.is-real-biz.workers.dev/check/batch \
  -H 'authorization: Bearer irb_live_...' \
  -H 'content-type: application/json' \
  -d '{"domains":["stripe.com","openai.com","sketchy.xyz"]}'

MCP (Claude Desktop / Cursor / Windsurf / etc.)

{
  "mcpServers": {
    "is-real-biz": {
      "url": "https://is-real-biz.is-real-biz.workers.dev/mcp",
      "headers": { "Authorization": "Bearer irb_live_..." }
    }
  }
}

Discovery surfaces