OpenAI-compatible LLM proxy with USDC micropayments. No accounts, no API keys.
paypertoken.dev · Docs · Dashboard
- Open a tempo payment session
- Send OpenAI-compatible requests — pay per token via USDC vouchers
- No accounts, no API keys, no invoices
| Model | Input/1M | Output/1M |
|---|---|---|
| gpt-4o-mini | $0.165 | $0.660 |
| google/gemini-2.5-flash | $0.165 | $0.660 |
| meta-llama/llama-4-maverick | $0.220 | $0.660 |
| anthropic/claude-haiku-4 | $0.880 | $4.400 |
| o3-mini | $1.210 | $4.840 |
| gpt-4o | $2.750 | $11.000 |
| google/gemini-2.5-pro | $1.375 | $11.000 |
| anthropic/claude-sonnet-4 | $3.300 | $16.500 |
Prices include a 10% service fee. Cheapest provider auto-selected.
git clone https://github.com/richtan/paypertoken.git
cd paypertoken
cp .env.example .env # fill in API keys
npm install
npm run dev # http://localhost:3402
- Framework: Hono (TypeScript)
- Payment: mppx with tempo sessions (USDC on Base)
- Providers: OpenAI (direct), OpenRouter (Anthropic, Google, Meta)
- Routing: Auto-selects cheapest available provider per model, 60s failover cooldown
| Variable | Required | Description |
|---|---|---|
PORT |
No | Server port (default: 3402) |
MPP_REALM |
Yes | MPP realm identifier |
MPP_SECRET_KEY |
Yes | HMAC secret for mppx (must be stable across restarts) |
SPENDING_KEY |
Yes | Private key of the recipient wallet (0x...) |
OPENAI_API_KEY |
Yes | OpenAI API key |
OPENROUTER_API_KEY |
Yes | OpenRouter API key |
BUDGET |
No | Max total spend in USD (default: 5) |
TEMPO_TESTNET |
No | Set true for testnet |
Deployed on Railway with auto-deploy from GitHub on push to main.
docker compose up # or use the Dockerfile directly
MIT
