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Overview

Receives a user-signed transaction from /launch, adds the protocol’s signature, and submits the complete transaction to the Solana blockchain to finalize the token launch.

Request Parameters

string
required
Base58 encoded transaction signed by the user’s wallet
string
required
Token mint address returned from /launch
string
required
Token name (must match the value used in /launch)
string
required
Token symbol (must match the value used in /launch)
string
required
Public key of the transaction payer (must match the value used in /launch)
string
Metadata URL returned from /launch (optional but recommended)

Response

boolean
Indicates if the operation was successful
string
The Solana transaction signature/hash
string
The confirmed token mint address
string
The metadata URL for the token
object
Blockchain confirmation details

Success Response

Error Responses

This occurs when:
  • Too much time has passed since calling /launch
  • Invalid baseMint provided
This can occur due to:
  • Network congestion
  • Insufficient funds for transaction fees
  • Invalid transaction signature
  • Blockchain errors

Process Flow

This endpoint completes the two-phase token launch process:
1

Retrieve Keypair

Fetches the stored token keypair using the provided baseMint
2

Deserialize Transaction

Converts the Base58 signed transaction back to a Solana Transaction object
3

Add Protocol Signature

Signs the transaction with the protocol’s token keypair (mint authority)
4

Submit to Blockchain

Sends the fully signed transaction to the Solana network
5

Wait for Confirmation

Monitors the transaction until it’s confirmed on-chain
6

Record Launch

Stores the successful launch for the claims system
7

Cleanup

Removes the temporary keypair after successful launch

Rate Limiting

This endpoint is subject to rate limiting:
  • 8 requests per IP per 2-minute window
  • Returns HTTP 429 when limit exceeded

Security Notes

Important Security Considerations:
  • The transaction must be signed by the same wallet used in /launch
  • Protocol adds the final signature but users maintain control of their funds
  • Token keypairs are automatically cleaned up after successful launch
  • All launches are recorded for audit trails

After Launch

Once your token is successfully launched:
  1. Verify Creation: Use /verify-token to confirm
  2. Check Claims: View eligibility with /claims/:tokenAddress
  3. Monitor Health: Use /health for system status

Transaction Signature

The returned transactionSignature can be used to:
  • View the transaction on Solana explorers
  • Verify the token creation on-chain
  • Track the transaction status
  • Provide proof of launch to users
Example Solana Explorer URL: