Pay OpenAI API with Crypto
If you want to pay OpenAI API usage with crypto instead of a credit card, 402ai.net gives you a Lightning-native path plus crypto topups that settle into a reusable API token.
Why this page exists
Most AI API billing assumes a card-first account model. 402ai.net gives you a crypto-funded path that still works with standard OpenAI-compatible SDKs and tools.
- Top up with Lightning or supported crypto rails, then claim a bearer token.
- Use that token with OpenAI SDKs, Curl, Aider, Cursor, and other OpenAI-compatible tools.
- For one-shot requests, paid endpoints can also start with an L402 challenge.
Best for developers who hold crypto but still want standard API ergonomics.
How It Works
1. Choose Payment Mode
Use L402 if you want request-by-request settlement, or top up once if you want a reusable token for SDKs, agents, and repeated calls.
2. Use One Base URL
Send requests to https://402ai.net/api/v1 from OpenAI-compatible tools like Curl, Python, Node, Aider, Cursor, and Claude Code integrations.
3. Keep It Machine-Readable
Agents can discover routes, models, and payment modes through /llms.txt, /openapi.json, and /api/v1/catalog.