Pump.fun gRPC Streams

Real-time streaming of Pump.fun DEX trades, orders, and transactions via CoreCast gRPC API.

Repository

Clone and get started:

git clone https://github.com/Akshat-cs/pump.fun-gRPC-Streams.git

Introduction

This Node.js client allows you to stream real-time trading data from Pump.fun (Solana's popular memecoin launchpad) using the CoreCast gRPC API. Monitor track buying/selling pressure, detect whale activity, and analyze trading patterns in real-time.

Key Features:

🚀 Real-time trade streaming from Pump.fun
🎯 Flexible filtering by tokens, traders, and trade direction
💰 Separate buy and sell trade monitoring
📊 Performance metrics and statistics
🔍 Detailed trade information including accounts and currencies
⚡ High-performance with caching and buffering

Quick Start

# 1. Install dependencies
npm install

# 2. Configure your filters in config.yaml
# Edit the file to set your desired token and trade filter

# 3. Run the client
node index.js

Stream Types

The client supports multiple stream types:

Stream Type	Description
`dex_trades`	Real-time trade events (default)
`dex_orders`	Order placement and cancellation events
`dex_pools`	Pool liquidity change events
`transactions`	General transaction stream
`transfers`	Token transfer events
`balances`	Balance update events

For Pump.fun monitoring, use dex_trades (default).

Trade Data Structure

When you stream Pump.fun trades, each message contains:

Trade Event Structure

{
  Block: {
    Slot: 370485092  // Solana block slot number
  },
  Transaction: {
    Index: 1,
    Signature: "5277PwHQ4PkKRExT45HV8X8XXDmQjWZzHK8dx5ru1eaA...",
    Status: {
      Success: true,
      ErrorMessage: null
    },
    Header: {
      Fee: 5000,
      FeePayer: "7GCihgDB8fe6KNjn2MYtkzZcRjQy3t9GHdC8uHYmW2hr",
      Signer: "7GCihgDB8fe6KNjn2MYtkzZcRjQy3t9GHdC8uHYmW2hr",
      Accounts: [...]
    }
  },
  Trade: {
    InstructionIndex: 2,
    Dex: {
      ProgramAddress: "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P",
      ProtocolName: "pump_fun",
      ProtocolFamily: "pump_fun"
    },
    Market: {
      MarketAddress: "YcQB1hGSR9hNbJ52zrCJyMvbRViQKiaLfenrgZR9BXY",
      BaseCurrency: {
        Symbol: "PUMPTOKEN",
        Name: "Pump Token",
        MintAddress: "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump",
        Decimals: 6
      },
      QuoteCurrency: {
        Symbol: "SOL",
        Name: "Wrapped SOL",
        MintAddress: "So11111111111111111111111111111111111111112",
        Decimals: 9
      }
    },
    Buy: {
      Amount: 100000000,  // Amount of token being bought
      Currency: {
        Symbol: "PUMPTOKEN",
        Name: "Pump Token",
        MintAddress: "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump",
        Decimals: 6,
        Parsed: true
      },
      Account: {
        Address: "8HqR8D9gHtN1eMJyaX7BN5PmzF5z9KgQzY4nXvFfRD8m",
        IsSigner: true,
        IsWritable: true
      },
      Order: {
        OrderId: null
      }
    },
    Sell: {
      Amount: 500000000,  // Amount of SOL being sold
      Currency: {
        Symbol: "SOL",
        Name: "Wrapped SOL",
        MintAddress: "So11111111111111111111111111111111111111112",
        Decimals: 9
      },
      Account: {
        Address: "8HqR8D9gHtN1eMJyaX7BN5PmzF5z9KgQzY4nXvFfRD8m",
        IsSigner: true,
        IsWritable: true
      },
      Order: {
        OrderId: null
      }
    },
    Fee: 0,
    Royalty: 0,
    Instruction: {
      Index: 2,
      Depth: 0,
      Program: {
        Address: "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P",
        Name: "pump_fun",
        Method: "swap",
        Parsed: true
      },
      Accounts: [...],
      Logs: [...]
    }
  }
}

Key Fields Explained

Field	Description
`Trade.Buy.Amount`	Amount of token being bought (in base units)
`Trade.Sell.Amount`	Amount of SOL being sold (in lamports)
`Trade.Buy.Currency.MintAddress`	Token mint address
`Trade.Buy.Account.Address`	Buyer's wallet address
`Trade.Dex.ProgramAddress`	Always `6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P` for Pump.fun
`Trade.Market.MarketAddress`	Unique market/pool address for the token
`Block.Slot`	Solana block slot for timing analysis

Configuration Options

Edit config.yaml to configure your stream:

trade_filter: "alltrades" # or "buys" or "sells"

Value	Description
`alltrades`	Show all trades (both buys and sells)
`buys`	Show only trades where the token is being bought
`sells`	Show only trades where the token is being sold

Available Filters

Server-side filters (applied by CoreCast API):

Filter	Description	Example
`programs`	Filter by DEX program address	Pump.fun: `6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P`
`tokens`	Filter by token mint address(es)	Your token mint address
`pool`	Filter by specific market/pool address	Specific Pump.fun market
`traders`	Filter by wallet address(es)	Specific trader wallets

Client-side filter (applied by this client):

Filter	Description
`trade_filter`	Filter by trade direction (buys/sells/alltrades)

Filter Examples

1. Monitor ALL Trades for a Specific Token

Track all trading activity (both buys and sells) for a specific token on Pump.fun.

trade_filter: "alltrades"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  tokens:
    - "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump"

Use Case: General market monitoring, volume analysis

2. Monitor Only BUYS for a Specific Token

Track buying pressure - see when traders are accumulating the token.

trade_filter: "buys"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  tokens:
    - "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump"

Use Case: Track accumulation patterns, detect buying momentum

3. Monitor Only SELLS for a Specific Token

Track selling pressure - detect when traders are dumping the token.

trade_filter: "sells"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  tokens:
    - "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump"

Use Case: Detect sell pressure, identify dumps, risk monitoring

4. Monitor Multiple Tokens

Track trading activity across multiple Pump.fun tokens simultaneously.

trade_filter: "alltrades"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  tokens:
    - "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump"
    - "H15fwzsYWQiGTQBn23sC2QuByu9zSvaXhaDwwVmkX5m9"
    - "AnotherTokenMintAddressHere"

Use Case: Portfolio tracking, multi-token analysis

5. Monitor ALL Pump.fun Activity

Stream all trades on Pump.fun (no token filter) - useful for market-wide analysis.

trade_filter: "alltrades"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  # No tokens filter = all tokens

Use Case: Market-wide analytics, new token discovery, volume tracking

⚠️ Warning: This will stream a high volume of messages. Ensure your system can handle the load.

6. Monitor Specific Trader Activity

Track all trades made by a specific wallet on Pump.fun.

trade_filter: "alltrades"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  traders:
    - "7GCihgDB8fe6KNjn2MYtkzZcRjQy3t9GHdC8uHYmW2hr"

Use Case: Whale watching, copytrading, smart money tracking

7. Monitor Specific Trader's Token Buys

Track when a specific wallet buys a specific token.

trade_filter: "buys"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  tokens:
    - "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump"
  traders:
    - "7GCihgDB8fe6KNjn2MYtkzZcRjQy3t9GHdC8uHYmW2hr"

Use Case: Copy-trading specific whales, alpha signal detection

8. Monitor Multiple Traders

Track activity from multiple wallets (whale watching).

trade_filter: "alltrades"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  traders:
    - "7GCihgDB8fe6KNjn2MYtkzZcRjQy3t9GHdC8uHYmW2hr"
    - "8HqR8D9gHtN1eMJyaX7BN5PmzF5z9KgQzY4nXvFfRD8m"
    - "9iJkLmNoPQrsTUVxYZaBcDeFgH1JkLmNoPQrsTUVxYZ"

Use Case: Monitor multiple known profitable traders

9. Monitor Specific Market/Pool

Track all activity in a specific Pump.fun market.

trade_filter: "alltrades"
filters:
  pool:
    - "YcQB1hGSR9hNbJ52zrCJyMvbRViQKiaLfenrgZR9BXY"

Use Case: Deep dive into a specific token's liquidity pool

10. Detect Large Buys (Whale Accumulation)

Monitor buy trades and filter large amounts in your application logic.

trade_filter: "buys"
filters:
  programs:
    - "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"
  tokens:
    - "7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump"

Then in your code, filter by Trade.Buy.Amount or Trade.Sell.Amount (SOL value).

Use Case: Whale buy alerts, large transaction monitoring

Output Example

When a trade matches your filters, you'll see:

================================================================================
🟢 BUY Trade
================================================================================
Block Slot: 370485092
Timestamp: 2025-10-01T13:11:32.922Z
Instruction Index: 2

📍 DEX Info:
  Program: 6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P
  Protocol: pump_fun (pump_fun)

🏪 Market Info:
  Address: YcQB1hGSR9hNbJ52zrCJyMvbRViQKiaLfenrgZR9BXY
  Base Currency: PUMPTOKEN
  Quote Currency: SOL

💰 Buy Side:
  Amount: 100000000
  Currency: PUMPTOKEN (Pump Token)
  Mint: 7CyJ5J3tqRKKJjSWSzASuVJdD2oryAJZfyvbMVJmpump
  Decimals: 6
  Account: 8HqR8D9gHtN1eMJyaX7BN5PmzF5z9KgQzY4nXvFfRD8m
  Is Signer: true
  Is Writable: true
  Order ID: undefined

💸 Sell Side:
  Amount: 500000000
  Currency: SOL (Wrapped SOL)
  Mint: So11111111111111111111111111111111111111112
  Decimals: 9
  Account: 8HqR8D9gHtN1eMJyaX7BN5PmzF5z9KgQzY4nXvFfRD8m
  Is Signer: true
  Is Writable: true
  Order ID: undefined

💵 Fee: 0
👑 Royalty: 0
================================================================================

Repository​

Introduction​

Quick Start​

Stream Types​

Trade Data Structure​

Trade Event Structure​

Key Fields Explained​

Configuration Options​

Trade Filter Options​

Available Filters​

Filter Examples​

1. Monitor ALL Trades for a Specific Token​

2. Monitor Only BUYS for a Specific Token​

3. Monitor Only SELLS for a Specific Token​

4. Monitor Multiple Tokens​

5. Monitor ALL Pump.fun Activity​

6. Monitor Specific Trader Activity​

7. Monitor Specific Trader's Token Buys​

8. Monitor Multiple Traders​

9. Monitor Specific Market/Pool​

10. Detect Large Buys (Whale Accumulation)​

Output Example​