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What is the Gas Station API?

The Altude Gas Station API lets you build Solana applications without managing gas fees, RPC nodes, or fee-payer accounts. You send signed transactions; Altude validates, sponsors, and relays them to the network. Authentication uses API keys in the X-API-Key header. Each key selects a tenant, cluster, and RPC configuration — there is no environment or index parameter to manage. Base URL: https://api.altude.so/api Authentication: X-API-Key: YOUR_API_KEY

Get started

Set up authentication and make your first API call.

Account operations

Create accounts, read balances, and fetch transaction history.

Transaction operations

Submit single and batch sponsored transactions.

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How to use this reference

  1. Sign up for an account and get your API key.
  2. Follow the getting-started guide to authenticate and make your first call.
  3. Explore the endpoint reference in the sidebar for request/response schemas and live examples.
For teams migrating from Kinetic, the migration guide maps every Kinetic endpoint to its Gas Station equivalent.