About

Imported from jeremylongshore/tons-of-skills-marketplace (skills/.curated/analyzing-mempool/SKILL.md). Install upstream with npx skills add jeremylongshore/tons-of-skills-marketplace --skill analyzing-mempool. Copyright stays with the author (MIT).

Analyzing Mempool

Name: analyzing-mempool
Author: jeremylongshore

Overview

Monitor Ethereum mempool for pending transactions, analyze gas prices, detect DEX swaps, and identify potential MEV opportunities. Useful for traders, MEV researchers, and protocol developers.

Prerequisites

Install Python 3.8+ with requests library
Configure Ethereum RPC URL (default: public endpoint, or set ETH_RPC_URL)
Verify internet access for RPC calls

Instructions

Step 1: Navigate to Scripts Directory

cd ${CLAUDE_SKILL_DIR}/scripts

Step 2: Choose a Command

View pending transactions: python mempool_analyzer.py pending
Analyze gas prices: python mempool_analyzer.py gas
Detect pending DEX swaps: python mempool_analyzer.py swaps
Scan MEV opportunities: python mempool_analyzer.py mev
Get mempool summary: python mempool_analyzer.py summary
Watch specific contract: python mempool_analyzer.py watch 0x7a250d...

Alternatively, customize with flags:

python mempool_analyzer.py pending --limit 100    # Limit results
python mempool_analyzer.py --chain polygon gas     # Use different chain
python mempool_analyzer.py --chain arbitrum pending # Or use Arbitrum

Step 3: Interpret Results

Gas Recommendations:

Slow (10th percentile): May take 10+ blocks
Standard (50th percentile): 2-5 blocks
Fast (75th percentile): 1-2 blocks
Instant (90th percentile): Next block likely

MEV Warnings:

MEV detection is for educational purposes
Real MEV extraction requires specialized infrastructure
Use this for research and understanding mempool dynamics

Output

Pending transaction lists with gas prices and types
Gas price distribution and recommendations
Detected DEX swaps with amounts and DEX identification
MEV opportunity analysis with estimated profits
JSON output for programmatic use (--format json)

Error Handling

See ${CLAUDE_SKILL_DIR}/references/errors.md for:

RPC connection issues and timeout recovery
Mempool access limitations per chain
Transaction decoding errors and fallbacks
Gas analysis edge cases

Examples

Example 1: Check gas before sending transaction:

python mempool_analyzer.py gas
# Use "Fast" for quick confirmation

Example 2: Monitor for large pending swaps:

python mempool_analyzer.py swaps --limit 200  # 200: max results to scan

Example 3: Research MEV opportunities:

python mempool_analyzer.py mev -v

See ${CLAUDE_SKILL_DIR}/references/examples.md for more usage patterns.

Resources

${CLAUDE_SKILL_DIR}/references/implementation.md - Gas analysis, MEV detection, multi-chain details
Ethereum JSON-RPC - RPC specification
Flashbots - MEV research and infrastructure
DEX Subgraphs - Pool and swap data
Supports: Ethereum, Polygon, Arbitrum, Optimism, Base

Use it

Copy one of these into your project. Installing also returns the manifest and these snippets.

yaml

targets:
  - https://api.opensmartroute.ai/api/v1/registry/jeremylongshore-tons-of-skills-marketplace-analyzing-mempool/manifest   # or paste the manifest below

Manifest

An Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.

jeremylongshore-tons-of-skills-marketplace-analyzing-mempool.ocm.jsonjson

{
  "ocm": "1",
  "id": "jeremylongshore-tons-of-skills-marketplace-analyzing-mempool",
  "kind": "skill",
  "name": "analyzing-mempool",
  "description": "Monitor blockchain mempools for pending transactions, gas analysis, and MEV opportunities. Use when analyzing pending transactions, optimizing gas prices, or researching MEV. Trigger with phrases like \"check mempool\", \"scan pending txs\", \"find MEV\", \"gas price analysis\", or \"pending swaps\".",
  "publisher": "jeremylongshore",
  "version": "1.0.0",
  "capabilities": {
    "domains": [
      "general"
    ],
    "tags": [
      "skill-md",
      "crypto",
      "monitoring",
      "analyzing-mempool",
      "skills-sh"
    ],
    "languages": [
      "en"
    ]
  },
  "quality_prior": 0.6,
  "examples": [
    "Monitor blockchain mempools for pending transactions, gas analysis, and MEV opportunities. Use when analyzing pending transactions, optimizing gas prices, or researching MEV. Trigger with phrases like \"check mempool\", \"scan pending txs\", \"find MEV\", \"gas price analysis\", or \"pending swaps\"."
  ],
  "primary": false,
  "metadata": {
    "source": {
      "provider": "skills.sh",
      "repository": "https://github.com/jeremylongshore/tons-of-skills-marketplace",
      "path": "skills/.curated/analyzing-mempool/SKILL.md",
      "ref": "HEAD",
      "url": "https://github.com/jeremylongshore/tons-of-skills-marketplace/blob/HEAD/skills/.curated/analyzing-mempool/SKILL.md",
      "key": "jeremylongshore/tons-of-skills-marketplace/skills/.curated/analyzing-mempool/SKILL.md"
    },
    "compatibility": "Designed for Claude Code",
    "allowed_tools": [
      "Read,",
      "Write,",
      "Edit,",
      "Grep,",
      "Glob,",
      "Bash(python:*mempool*)"
    ],
    "license": "MIT"
  },
  "instructions": "# Analyzing Mempool\n\n## Contents\n\n[Overview](#overview) | [Prerequisites](#prerequisites) | [Instructions](#instructions) | [Output](#output) | [Error Handling](#error-handling) | [Examples](#examples) | [Resources](#resources)\n\n## Overview\n\nMonitor Ethereum mempool for pending transactions, analyze gas prices, detect DEX swaps, and identify potential MEV opportunities. Useful for traders, MEV researchers, and protocol developers.\n\n## Prerequisites\n\n1. Install Python 3.8+ with requests library\n2. Configure Ethereum RPC URL (default: public endpoint, or set `ETH_RPC_URL`)\n3. Verify internet acc",
  "cost": {
    "context_tokens": 789
  }
}

Fetch it by URL: GET /api/v1/registry/jeremylongshore-tons-of-skills-marketplace-analyzing-mempool/manifest?version=1.0.0

Reviews

Star ratings from people who tried it. One review per account; edit yours any time.

No reviews yet. Install it, try it, and be the first to rate it.