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36 free private calculator tools for Claude. No accounts, no data leaves your session.
MCP endpoint :https://boringtoolskit.com/mcp · website · measurements and details23-in-1 developer utility toolkit — search, exchange rates, crypto, QR codes, and more
Package npm :myclaw-toolkit · website · measurements and detailsThe documentation, as a tool your agent can call: 950+ AI-dev guides. Search + fetch tools.
MCP endpoint :https://developertoolkit.ai/mcp · website · measurements and detailsConvert, clean, retime and validate SRT, WebVTT, ASS/SSA, SBV and TTML subtitles. 8 tools.
MCP endpoint :https://subtitle-mcp.toolboxes.top/mcp · website · measurements and detailsDeveloper toolkit: UUID, timestamp, unit conversion, JSON tools, and QR code (SVG). Free.
MCP endpoint :https://mcp.pianam.cn/devtools-mcp/mcp · website · measurements and detailsdev.to developer blog & tutorial feed. $0.01/query. Register in-session — free testnet funds.
MCP endpoint :https://a2awire.com/mcp/data/devtowatch-dev-to-developer-blog-tutorial-firehose-11f3ce/http · website · measurements and detailsPay-per-call developer utilities and npm supply-chain security tools for coding agents, over x402.
Package npm :agent-toolkit-mcp · website · measurements and detailsPublic read-only MCP HTTP gateway for the Solapur software developers registry.
MCP endpoint :https://solapursoftwaredevelopers.dominal.in/api/mcp · website · measurements and detailsEngineering leadership benchmarks, 1:1 playbooks, developer value calculator. 3,662 sessions.
MCP endpoint :https://www.marian.coach/mcp · website · measurements and details制造业管理工具箱:TBP问题解决/品质管理/TPM设备保全/J成本改善/OEE计算/活力组织诊断。一句话出成品报告。
MCP endpoint :https://polyester-appease-bulldog.ngrok-free.dev/mcp · website · measurements and detailsFormaCV MCP server for AI-powered CV formatting, anonymization, tailoring, and ATS push-back.
Package npm :@formacv/mcp · website · measurements and details8 curriculum, classroom, accommodations and exam-prep skill products. 5 of 7 free.
MCP endpoint :https://mcp.moltlinestudio.com/educator · website · measurements and detailsEight free investment and trading calculators with PNG charts and editable result links.
MCP endpoint :https://pnltoolkit.com/mcp · website · measurements and detailsWeb search, page extraction, visual tools and developer utilities through Baizhi Cloud.
MCP endpoint :https://agent-toolkit.app.baizhi.cloud/mcp · website · measurements and detailsThe accessibility layer for AI coding agents: audit, fix, document and watch - WCAG 2.2.
Package pypi :a11y-toolkit · website · measurements and detailsMCP server aggregating developer infrastructure deals, free tiers, and startup programs
MCP endpoint :https://agentdeals.dev/mcp · website · measurements and detailsx402 web/data toolkit: tools, US$5 lead pack, free flapjax_check, paid Nostr relay
MCP endpoint :https://automatom.matt-d59.workers.dev/mcp · website · measurements and detailsHiring developers? Find and source software engineers by what they build on GitHub.
MCP endpoint :https://app.getstarhunt.com/mcp · website · measurements and detailsbug-bounty-programs
MCP endpoint :https://gateway.pipeworx.io/bug-bounty-programs/mcp · website · measurements and detailsIntegrates agents with Linear software development workflows.
MCP endpoint :https://linear-broker-mcp.vercel.app/api/mcp · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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