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Endpoint URL Structure

https://tpg.sanctum.so/v1/{cluster}?apiKey={apiKey}

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Path Parameters

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{cluster} (required)

Specifies the Solana cluster targeted for transactions. Supported Clusters:
Cluster ValueDescription
mainnetSolana Mainnet Beta
devnetSolana Development Network

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Query Parameters

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apiKey (required)

The unique authentication key assigned to your project. Example: 
01ARZ3NDEKTSV4RRFFQ69G5FAV

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Usage Example

Below is a basic example demonstrating how to build a transaction: 
const response = await fetch('https://tpg.sanctum.so/v1/mainnet?apiKey=your-api-key', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    method: 'buildGatewayTransaction',
    params: [getBase64EncodedWireTransaction(transaction)],
  })
});

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Security Best Practices

Protecting Your API Key:
  • Do not expose API keys in client-side code, repositories, or publicly accessible areas.
  • Store API keys using environment variables or dedicated secrets management tools.
  • Maintain separate API keys for distinct environments (development, staging, production).

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Next Steps

  • Learn how to build your transactions here
  • Learn how to deliver transactions here
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