Write API Overview

The Write API provides endpoints for managing blockchain transactions. These endpoints handle transaction encoding, validation, and broadcasting across all supported networks.

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Transaction Lifecycle

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1. Transaction Encoding

The /api/transaction/encode endpoint streamlines transaction creation by:

• Validating input parameters
• Calculating fees and gas estimates
• Applying chain-specific rules
• Preparing the transaction for signing

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2. Transaction Validation

The validation endpoint helps verify transactions before broadcasting:

• Checks transaction structure
• Validates sender’s balance
• Verifies chain-specific requirements

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3. Transaction Broadcasting

Two options for broadcasting transactions:

• Standard Broadcast (POST /api/transaction/broadcast): For regular signed transactions
• Raw Broadcast (POST /api/transaction/broadcast/raw): For pre-formatted transaction payloads

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Supported Transaction Types

The API supports various transaction types across chains:

• Native Transfers: Send native blockchain currency
• Token Transfers: Handle ERC20 and other token standards
• Staking Operations: Delegate, redelegate, undelegate, and claim rewards

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Chain-Specific Features

The Write API adapts to each blockchain’s capabilities:

{
  "write": {
    "transaction": {
      "type": {
        "native": true, // Native currency transfers
        "tokens": true, // Token operations
        "staking": true // Staking operations
      },
      "field": {
        "memo": true // Optional transaction memo support
      }
    }
  }
}

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Error Handling

The API provides detailed error feedback:

• Pre-broadcast validation errors
• Chain-specific rejection reasons
• Broadcasting status and confirmation details

For implementation details, refer to:

• Encode a Transaction
• Validate Transaction
• Broadcast Transaction