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GraphQL API Documentation

Our GraphQL API provides programmatic access to blockchain data and transaction capabilities. The endpoint supports modern query patterns with rate limiting, pagination, and subscription capabilities. All endpoints are TLS-encrypted and follow RESTful best practices.

POST /api/graphql
{"query": "{ block(height: 1234) { hash timestamp { height timestamp transactions { id from to value } } }"}
  • block
    Arguments: height (Int), hash (String)
    Returns: Block details with transaction list
  • transaction
    Arguments: id (String)
    Returns: Full transaction data including status and metadata
  • address
    Arguments: hash (String)
    Returns: Balance history and transaction summary
sendTransaction

Execute transaction broadcast with automatic fee estimation

{"mutation": "sendTransaction(input: {to: "addr123", value: "1000000", data: {type: "TRANSFER"}})"}

Authentication: Bearer token authentication required for write operations

Rate Limits: 1000 requests/minute for read operations (2000 with premium access)

Best Practices

  • • Cache frequently accessed data locally
  • • Use webhooks instead of polling for updates
  • • Monitor usage metrics in your developer dashboard

Try the GraphQL Playground

Open Playground