Gmail filter generator
Build Gmail filters for multiple senders, domains and subjects, test each one in Gmail search, then import them all with one XML file. Free, no signup.
- Search strings
- mailFilters.xml
- Bulk import
Open the tool
Free tools, no signup
Free tools
Small, single-purpose tools for email, automation and AI setup, made by the team behind Construct. Each one works the moment it opens, keeps what you type on your device, and gives you something you can use straight away: a file to import, a price to plan around, or config to paste.
- No account
- Runs in your browser
- Works on your phone
- AI agents can use them
Email
Automation
Zapier cost calculator
How much will Zapier cost you? Enter your Zaps, steps and runs to see your monthly tasks, the cheapest plan and your cost per task, at current Zapier prices.
- Monthly tasks
- Cheapest plan
- Cost per task
Open the tool
AI setup
MCP config generator
Generate mcp.json and MCP config for Claude Desktop, Claude Code, Cursor, VS Code and Codex from one server. Local or remote, env vars and headers. Free.
- Claude
- Cursor
- VS Code
- Codex
Open the tool
Use them from an AI agent
Every tool is also a free endpoint with no key. Agents that can fetch a URL get each tool's input schema and an example, then run it with a GET or a POST. Agents working in a browser with WebMCP find the same tools registered on every page of this site.
# Every tool, with schemas and examples
GET https://construct.computer/api/tools
# Run one
GET https://construct.computer/api/tools/zapier-cost-calculator
?input={"zaps":[{"action_steps":2,"runs_per_month":300}]}