One Million Tools for Claude.ai

io.github.lucas-project/one-million-tools

42 free deterministic utilities: JSON, CSV, YAML, encoding, hashing, JWT, cron, formatters, CSS.

client:Claude.ai transport:streamable-http tools:42

Install One Million Tools in Claude.ai

Settings → Connectors → Add custom connector

https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

json_format
json_minify
json_validate
json_diff
json_to_yaml
yaml_to_json
json_to_csv
csv_to_json
base64_encode
base64_decode
url_encode
url_decode
sha256_hash
hash_text
uuid_generate
regex_test
unix_timestamp_convert
jwt_decode
sql_format
html_format
css_format
js_format
yaml_format
cron_explain

All 42 tools →

One Million Tools in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

One Million Tools MCP server