How to Burn SPL Tokens Using the Portal API (Solana)

What Does “Burning” Mean?

Burning tokens reduces your token's total supply. This can be useful for:

Managing inflation

Increasing scarcity (and potentially value)

Cleaning up unused or test tokens

On Solana, burning is an official instruction (not sending to a “dead” wallet like on other chains)

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🛠️ The Portal API Burn Endpoint

The endpoint for burning is typically:

http

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POST /blockchain/token/burn

You'll need to include:

chain: "SOL"

tokenAddress: Your token’s mint address

from: The owner authority address

fromPrivateKey: Your mint authority private key

amount: Number of tokens to burn

⚙️ Example Request

json

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POST /blockchain/token/burn

{

"chain": "SOL",

"tokenAddress": "YOUR_TOKEN_MINT_ADDRESS",

"from": "YOUR_WALLET_ADDRESS",

"fromPrivateKey": "YOUR_PRIVATE_KEY",

"amount": "25000"

}

This tells the API: “Burn 25,000 tokens of my SPL token, reducing total supply.”

📬 What You’ll Get Back

You’ll receive a JSON response like:

json

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{

"txId": "3QwXz...9LmNo"

}

That’s your transaction signature—you can track it on Solana explorers to verify the burn went through.

💡 Why Use Official Burn (Not “Dead Wallets”)

Broadcasting a burn instruction:

Actually reduces total supply on-chain

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Frees up the token account (you’ll reclaim ~0.002 SOL)

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Safer/cleaner than sending tokens to an unspendable address

🛡️ Best Practices

Double-check amounts—burning is irreversible

Protect your private key—never log or share it

Ensure your wallet has some SOL to cover the transaction fee

📈 When Should You Burn?

Cleanup test or leftover tokens in development

Periodic burns to manage inflation

Removing unclaimed tokens after distributions

Visit: https://docs.solanaportal.io/api-documentation/token-creation/tokencreation