Agent skill

Tracking Crypto Prices

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Track real-time cryptocurrency prices across exchanges with historical data and alerts.

MITAuto-check passedBusiness, Finance & HR

Install Tracking Crypto Prices

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill tracking-crypto-prices -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace tracking-crypto-prices --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/tracking-crypto-prices .claude/skills/tracking-crypto-prices && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
tracking-crypto-prices
GitHub stars
2.8k
Token cost
~1.1k tokens
SKILL.md length
277 words
Files
11 (incl. scripts, references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Track real-time cryptocurrency prices across exchanges with historical data and alerts.

  • Works in 4 steps: Install dependencies: pip install… → Optional: pip install python-dotenv for… → Optional: Get free API key from… → …
  • Checking crypto prices
  • SKILL.md covers Contents, Overview, Prerequisites and Instructions, plus 4 more sections
  • Runs Python scripts from its folder; calls python and pip; needs COINGECKO_API_KEY

What it does

Tracking Crypto Prices is an agent skill from jeremylongshore/tons-of-skills-marketplace. Track real-time cryptocurrency prices across exchanges with historical data and alerts. Provides price data infrastructure for dependent skills (portfolio, tax, DeFi, arbitrage). Use when checking crypto prices, monitoring markets, or fetching historical price data. Trigger with phrases like "check price", "BTC price", "crypto prices", "price history", "get quote for", "what's ETH trading at", "show me top coins", or "track my watchlist".

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 13 other files, including scripts and reference files (for example `ARD.md`, `PRD.md` and `config/settings.yaml`). Compatibility notes: Designed for Claude Code

It sits in Business, Finance & HR, covering Crypto and DeFi analysis. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Checking crypto prices
  • Monitoring markets
  • Fetching historical price data
  • With phrases like check price

Example prompts

  • “check price”
  • “BTC price”
  • “crypto prices”
  • “/tracking-crypto-prices”

Requirements

  • Python 3
  • A credential in COINGECKO_API_KEY
  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Grep, Glob, Bash(python:*)

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Install dependencies: pip install requests pandas yfinance
  2. Optional: pip install python-dotenv for API key management
  3. Optional: Get free API key from https://www.coingecko.com/en/api for higher rate limits
  4. Add API key to ${CLAUDE_SKILL_DIR}/config/settings.yaml or set COINGECKO_API_KEY env var

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Write
    • Edit
    • Grep
    • Glob
    • Bash(python:*)

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 4 files in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python
    • pip

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • coingecko.com
    • github.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • COINGECKO_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Tracking Crypto Prices loads about 1.1k tokens when it runs, and up to ~6.1k if it reads all its reference files. Until then it costs about 116 tokens; SKILL.md has 277 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~116
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~6.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 277 words, ~1,111 tokens.

Download SKILL.mdSave it as .claude/skills/tracking-crypto-prices/SKILL.md (or your agent's skills folder). This skill also uses 10 other files; get the full folder from GitHub.
name
tracking-crypto-prices
description
Track real-time cryptocurrency prices across exchanges with historical data and alerts. Provides price data infrastructure for dependent skills (portfolio, tax, DeFi, arbitrage). Use when checking crypto prices, monitoring markets, or fetching historical price data. Trigger with phrases like "check price", "BTC price", "crypto prices", "price history", "get quote for", "what's ETH trading at", "show me top coins", or "track my watchlist".
allowed-tools
Read, Write, Edit, Grep, Glob, Bash(python:*)
compatibility
Designed for Claude Code
version
1.27.0
author
Jeremy Longshore <jeremy@intentsolutions.io>
license
MIT
tags
crypto, monitoring, tracking-crypto

Tracking Crypto Prices

Contents

Overview | Prerequisites | Instructions | Output | Error Handling | Examples | Resources

Overview

Foundation skill providing real-time and historical cryptocurrency price data for 10,000+ coins. This is the data layer for the crypto plugin ecosystem -- 10+ other skills depend on it for price information.

Prerequisites

  1. Install dependencies: pip install requests pandas yfinance
  2. Optional: pip install python-dotenv for API key management
  3. Optional: Get free API key from https://www.coingecko.com/en/api for higher rate limits
  4. Add API key to ${CLAUDE_SKILL_DIR}/config/settings.yaml or set COINGECKO_API_KEY env var

Instructions

  1. Check current prices for one or more symbols:

    bash
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbols BTC,ETH,SOL
  2. Use watchlists to scan predefined groups (available: top10, defi, layer2, stablecoins, memecoins):

    bash
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist top10     # Top 10 by market cap
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist defi      # DeFi tokens
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist layer2    # Layer 2 tokens
  3. Fetch historical data by period or custom date range:

    bash
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC --period 30d
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC --period 90d --output csv
    python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol ETH --start 2024-01-01 --end 2024-12-31  # 2024 full year
  4. Configure settings by editing ${CLAUDE_SKILL_DIR}/config/settings.yaml to customize cache TTLs, default currency, and custom watchlists. See references/implementation.md for the full configuration reference.

Output

  • Table (default): Symbol, price, 24h change, volume, market cap in formatted columns
  • JSON (--format json): Machine-readable with prices array and metadata
  • CSV (--output csv): OHLCV historical data export to ${CLAUDE_SKILL_DIR}/data/

See ${CLAUDE_SKILL_DIR}/references/implementation.md for detailed output format examples.

Error Handling

ErrorCauseSolution
Unknown symbol: XYZInvalid tickerCheck spelling, use --list to search
Rate limit exceededToo many API callsWait 60s, or add API key for higher limits
Network errorNo internetCheck connection; cached data used automatically
Cache staleData older than TTLShown with warning, refreshes on next call

The skill auto-manages rate limits: cache first, exponential backoff, yfinance fallback, stale cache as last resort.

Examples

Quick price check:

bash
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol BTC
# Output: BTC (Bitcoin) $97,234.56 USD +2.34% (24h) | Vol: $28.5B | MCap: $1.92T

Watchlist scan:

bash
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --watchlist top10

Historical export:

bash
python ${CLAUDE_SKILL_DIR}/scripts/price_tracker.py --symbol ETH --period 90d --output csv
# Creates: ${CLAUDE_SKILL_DIR}/data/ETH_90d_[date].csv

Resources

  • ${CLAUDE_SKILL_DIR}/references/implementation.md - Output formats, full config, integration guide, file map
  • CoinGecko API - Primary data source
  • yfinance - Fallback for historical data

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 10 other files (scripts, references) in skills/.curated/tracking-crypto-prices of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • ARD.md
  • PRD.md
  • config/settings.yaml
  • references/errors.md
  • references/examples.md
  • references/implementation.md
  • scripts/api_client.py
  • scripts/cache_manager.py
  • scripts/formatters.py
  • scripts/price_tracker.py

Open the folder on GitHubat commit cfae287

Compare with similar skills

Tracking Crypto Prices next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Tracking Crypto Prices compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Tracking Crypto Prices this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.1kAutomated safety check: PassMIT
Technical Analysttradermonty/claude-trading-skills3k4 repos~4.6kAutomated safety check: PassMIT
Polyclawchainstacklabs/polyclaw3591 repos~2kAutomated safety check: PassApache-2.0
Longbridge Researchhelsome/folio2713 repos~2.1kAutomated safety check: PassMIT
Stock Analysis24mlight/StockClaw1012 repos~2kAutomated safety check: NotesMIT
Swapper Depositswapperfinance/swapper-toolkit852—~1.8kAutomated safety check: PassMIT

Similar skills

  • Technical Analyst

    tradermonty/claude-trading-skills

    This skill should be used when analyzing weekly price charts for stocks, stock indices, cryptocurrencies, or forex pairs.

    3k GitHub starsUsed in 4 repos~4.6k tokens
    Business, Finance & HRAuto-check passed
  • Polyclaw

    chainstacklabs/polyclaw

    Trade on Polymarket via split + CLOB execution. An agent skill from chainstacklabs/polyclaw.

    359 GitHub starsUsed in 1 repo~2k tokens
    Business, Finance & HRAuto-check passed
  • Longbridge Research

    helsome/folio

    Institution ratings, consensus price targets, EPS/revenue forecasts, finance calendar, shareholder data, fund holders, insider trades (SEC Form 4), short interest, industry rankings, peer group…

    271 GitHub starsUsed in 3 repos~2.1k tokens
    Business, Finance & HRAuto-check passed
  • Stock Analysis

    24mlight/StockClaw

    Analyze stocks and cryptocurrencies using Yahoo Finance data.

    101 GitHub starsUsed in 2 repos~2k tokens
    Business, Finance & HRAuto-check: notes
  • Swapper Deposit

    swapperfinance/swapper-toolkit

    Deposit and bridge funds into a wallet or protocol using Swapper Finance.

    852 GitHub stars~1.8k tokensUpdated 6 mo ago
    Business, Finance & HRAuto-check passed
  • Okx Cex Earn

    okx/agent-skills

    Manages OKX Simple Earn (flexible savings/lending), Flash Earn, On-chain Earn (staking/DeFi), Dual Investment (DCD/双币赢), and AutoEarn (自动赚币) via the okx CLI.

    187 GitHub starsUsed in 2 repos~3.3k tokens
    Business, Finance & HRAuto-check passed

More from jeremylongshore/tons-of-skills-marketplace

All 3,342 skills in this repo
  • Performing Security Code Review

    jeremylongshore/tons-of-skills-marketplace

    Execute this skill enables AI assistant to conduct a security-focused code review using the security-agent plugin.

    2.8k GitHub starsUsed in 2 repos~1.3k tokens
    Auto-check: notes
  • Adapting Transfer Learning Models

    jeremylongshore/tons-of-skills-marketplace

    Build this skill automates the adaptation of pre-trained machine learning models using transfer learning techniques.

    2.8k GitHub stars~1.1k tokensUpdated today
    Auto-check passed
  • Agent Context Loader

    jeremylongshore/tons-of-skills-marketplace

    Execute proactive auto-loading: automatically detects and loads agents.md files.

    2.8k GitHub stars~1.1k tokensUpdated today
    Auto-check passed
  • Aggregating Performance Metrics

    jeremylongshore/tons-of-skills-marketplace

    Aggregate and centralize performance metrics from applications, systems, databases, caches, and services.

    2.8k GitHub stars~1.2k tokensUpdated today
    Auto-check passed
  • Analyzing Capacity Planning

    jeremylongshore/tons-of-skills-marketplace

    Execute this skill enables AI assistant to analyze capacity requirements and plan for future growth.

    2.8k GitHub stars~947 tokensUpdated today
    Auto-check passed
  • Analyzing Database Indexes

    jeremylongshore/tons-of-skills-marketplace

    Process use when you need to work with database indexing. An agent skill from jeremylongshore/tons-of-skills-marketplace.

    2.8k GitHub stars~2k tokensUpdated today
    Auto-check passed

Questions about Tracking Crypto Prices

What does Tracking Crypto Prices do?

Track real-time cryptocurrency prices across exchanges with historical data and alerts. Tracking Crypto Prices is an agent skill from jeremylongshore/tons-of-skills-marketplace. Track real-time cryptocurrency prices across exchanges with historical data and alerts.

When should I use Tracking Crypto Prices?

Tracking Crypto Prices fits situations like: checking crypto prices; monitoring markets; fetching historical price data; with phrases like check price.

How do I install Tracking Crypto Prices in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill tracking-crypto-prices -a claude-code`. Or copy the skill folder (skills/.curated/tracking-crypto-prices in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/tracking-crypto-prices in your project. Claude Code loads it when a task matches its description.

How do I install Tracking Crypto Prices in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill tracking-crypto-prices -a codex`. Or copy the skill folder (skills/.curated/tracking-crypto-prices in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/tracking-crypto-prices in your project. Codex loads it when a task matches its description.

Can I use Tracking Crypto Prices in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill tracking-crypto-prices -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tracking-crypto-prices, .gemini/skills/tracking-crypto-prices, .github/skills/tracking-crypto-prices and .opencode/skills/tracking-crypto-prices in your project.

What does Tracking Crypto Prices need to run?

Going by SKILL.md and its folder, Tracking Crypto Prices needs Python for the scripts in its folder, the command-line tools its instructions call (python and pip) and credentials named COINGECKO_API_KEY. Our summary lists: Python 3; A credential in COINGECKO_API_KEY. Its frontmatter pre-approves these tools: Read, Write, Edit, Grep, Glob, Bash(python:*). Compatibility (from SKILL.md): Designed for Claude Code.

Does Tracking Crypto Prices access the network?

SKILL.md names 2 domains. As links in the text: coingecko.com and github.com. This is read from the text; nothing was executed.

Is Tracking Crypto Prices safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Tracking Crypto Prices use?

Tracking Crypto Prices is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Tracking Crypto Prices use?

About 1.1k tokens (SKILL.md is roughly 4.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 5k tokens, read only when the agent opens those files.

What are the alternatives to Tracking Crypto Prices?

Skills that share tags, products or a category with Tracking Crypto Prices: Technical Analyst (tradermonty/claude-trading-skills, 3k stars), Polyclaw (chainstacklabs/polyclaw, 359 stars), Longbridge Research (helsome/folio, 271 stars) and Stock Analysis (24mlight/StockClaw, 101 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Tracking Crypto Prices?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.