Breeeze.Bot - Pump.fun Trading API | Trade Solana SPL Tokens on pump.fun & pump-amm

The Breeeze Trading API provides a simple HTTP interface for buying and selling Solana tokens on pump.fun or pump-amm. It returns unsigned transactions (base64) that you sign and broadcast.

Health Check

GET /health

200 OK if healthy.

Request & Response Conventions

Headers: Content-Type: application/json

{
  "messageBase64": "<base64-encoded unsigned transaction>"
}

Error JSON:

{
  "error": "BadRequest|UpstreamError|ServerError",
  "message": "Short error summary",
  "detail": "First stack element + exception text (if available)",
  "requestId": "<X-Request-Id value>"
}

Endpoints

1) Buy

POST /v1/buy

{
  "rpc": "https://<your-rpc>",
  "feePayer": "<base58 public key>",
  "mint": "<base58 token mint>",
  "amountSol": 0.001,
  "slippagePercent": 5
}

2) Sell

POST /v1/sell

{
  "rpc": "https://<your-rpc>",
  "feePayer": "<base58 public key>",
  "mint": "<base58 token mint>",
  "sellPercent": 50,
  "slippagePercent": 3
}

Common Errors

Error	HTTP	Description
BadRequest	400	Missing/invalid fields (e.g., malformed base58).
UpstreamError	502	RPC/third-party failure during checks/sim.
ServerError	500	Unexpected server exception.

Operational Notes

A 0.3% transaction fee applies to each buy/sell (excluding pump.fun & network fees). Blockhash TTL ~90s—broadcast promptly.