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feat(examples): add 18-account buy / 16-17-account sell for 2026-04-28 upgrade

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pump.fun program upgrade scheduled for 2026-04-28 16:00 UTC adds one new
mutable account (one of 8 fee recipients) at the end of buy/sell ixs,
after bonding-curve-v2. The new format is already accepted on mainnet
ahead of the cutover, so applying now keeps scripts working on both
sides of the upgrade.

Doc: github.com/pump-fun/pump-public-docs/blob/main/docs/BREAKING_FEE_RECIPIENT.md

Per file:
  manual_buy.py            — 18-account buy. Also fixes a pre-existing
                             listener crash on Address-Lookup-Table create
                             txs (skips them) and adds bool/OptionBool
                             handling to decode_create_instruction so
                             create_v2 doesn't raise on its trailing args.
  manual_buy_cu_optimized.py — 18-account buy. Bumps the CU-optimization
                             account-data limit to 16MB (tested) — older
                             values trigger MaxLoadedAccountsDataSizeExceeded
                             on Token-2022/cashback coins. Same listener
                             ALT-skip and decoder bool fixes.
  manual_buy_geyser.py     — 18-account buy. Re-enables price calculation
                             and mayhem-mode-aware fee_recipient detection
                             (was scaffolded out for testing).
  manual_sell.py           — 16-account non-cashback / 17-account cashback
                             sell. Reads is_cashback_coin from BC byte 82
                             and inserts user_volume_accumulator before
                             bonding-curve-v2 when needed. TOKEN_MINT now
                             accepts argv[1] override.

Live-verified on mainnet:
  buy   manual_buy.py             3AVnLC3sdBD598cs3... + 3bWU9bB8U9aemA2BFhS2...
  buy   manual_buy_cu_optimized   2PfH5rHw62o3KkQ3N4z8...
  sell  manual_sell.py            3E7dyPBPBRe95BtPQXmb... + 5L4wWSzPV36m6XqXAswB...
All four show the expected 18 (buy) / 16 (sell non-cashback) account count
with one of the 8 BREAKING_FEE_RECIPIENTS as the trailing mutable account.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Anton Sauchyk
2026-04-27 17:43:31 +02:00
co-authored by Claude Opus 4.7
parent 9b4841890c
commit c25e2edb57
4 changed files with 157 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files
learning-examples/manual_buy_geyser.py
+26 -13
View File
@@ -1,6 +1,7 @@
import asyncio
import json
import os
import random
import struct
import sys
@@ -39,6 +40,20 @@ PUMP_EVENT_AUTHORITY = Pubkey.from_string(
)
PUMP_FEE = Pubkey.from_string("CebN5WGQ4jvEPvsVU4EoHEpgzq1VV7AbicfhtW4xC9iM")
PUMP_FEE_PROGRAM = Pubkey.from_string("pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ")
# 8 breaking-upgrade fee recipients (pump.fun program upgrade 2026-04-28).
# One must be appended (mutable) AFTER bonding-curve-v2 on every buy/sell.
# Doc: github.com/pump-fun/pump-public-docs/blob/main/docs/BREAKING_FEE_RECIPIENT.md
BREAKING_FEE_RECIPIENTS = [
Pubkey.from_string("5YxQFdt3Tr9zJLvkFccqXVUwhdTWJQc1fFg2YPbxvxeD"),
Pubkey.from_string("9M4giFFMxmFGXtc3feFzRai56WbBqehoSeRE5GK7gf7"),
Pubkey.from_string("GXPFM2caqTtQYC2cJ5yJRi9VDkpsYZXzYdwYpGnLmtDL"),
Pubkey.from_string("3BpXnfJaUTiwXnJNe7Ej1rcbzqTTQUvLShZaWazebsVR"),
Pubkey.from_string("5cjcW9wExnJJiqgLjq7DEG75Pm6JBgE1hNv4B2vHXUW6"),
Pubkey.from_string("EHAAiTxcdDwQ3U4bU6YcMsQGaekdzLS3B5SmYo46kJtL"),
Pubkey.from_string("5eHhjP8JaYkz83CWwvGU2uMUXefd3AazWGx4gpcuEEYD"),
Pubkey.from_string("A7hAgCzFw14fejgCp387JUJRMNyz4j89JKnhtKU8piqW"),
]
SYSTEM_PROGRAM = Pubkey.from_string("11111111111111111111111111111111")
SYSTEM_TOKEN_PROGRAM = Pubkey.from_string("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA")
SYSTEM_TOKEN_2022_PROGRAM = Pubkey.from_string(
@@ -365,19 +380,11 @@ async def buy_token(
)
amount_lamports = int(amount * LAMPORTS_PER_SOL)
# Fetch bonding curve state to calculate price and determine fee recipient
# NOTE: Price calculation is commented out to speed up testing - using fixed values
# For production, uncomment the lines below to:
# 1. Calculate proper token amounts based on current price
# 2. Detect mayhem mode and use correct fee recipient
# curve_state = await get_pump_curve_state(client, bonding_curve)
# token_price_sol = calculate_pump_curve_price(curve_state)
# token_amount = amount / token_price_sol
# fee_recipient = await get_fee_recipient(client, curve_state)
# Testing values - replace with code above for production
token_amount = 100 # Fixed token amount
fee_recipient = PUMP_FEE # Standard fee recipient (doesn't detect mayhem mode)
# Fetch bonding curve state for price + mayhem-mode-aware fee recipient.
curve_state = await get_pump_curve_state(client, bonding_curve)
token_price_sol = calculate_pump_curve_price(curve_state)
token_amount = amount / token_price_sol
fee_recipient = await get_fee_recipient(client, curve_state)
# Calculate maximum SOL to spend with slippage
max_amount_lamports = int(amount_lamports * (1 + slippage))
@@ -433,6 +440,12 @@ async def buy_token(
is_signer=False,
is_writable=False,
),
# 18th account: breaking-upgrade fee recipient (mutable) — required from 2026-04-28
AccountMeta(
pubkey=random.choice(BREAKING_FEE_RECIPIENTS),
is_signer=False,
is_writable=True,
),
]
discriminator = struct.pack("<Q", 16927863322537952870)