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BYOK proxy with built-in billing — one key, every provider

The problem

You want a unified billing pipeline across OpenAI, Anthropic, Brave, Replicate, ElevenLabs, etc. — but you do NOT want to resell anyone's tokens (TOS hell).

What Spawnpay does

Spawnpay's proxy is BYOK passthrough. Each end-user brings their own provider key in X-Provider-Key. Spawnpay charges them $0.001 per upstream 2xx and forwards the body 1:1. Zero reselling. Full unified receipts.

Code

curl -X POST https://spawnpay.ai/api/proxy\
  -H 'Authorization: Bearer spk_live_...'\
  -H 'Content-Type: application/json'\
  -H 'X-Provider-Key: $OPENAI_API_KEY' \
  -d '{  "provider": "openai",  "path": "/v1/chat/completions",  "method": "POST",  "body": {    "model": "gpt-4o-mini",    "messages": [      {        "role": "user",        "content": "hi"      }    ]  }}'
60-SEC QUICKSTART → PLAYGROUND → TOP UP USDC →

What you get with $7 free credit

Every new spk_ wallet starts with $7. That covers 7,000 proxy calls, 1,400 cloud-scrapes, or 700 screenshots — enough to verify Spawnpay fits your workflow before topping up.

See also