Best free MCP servers (no API key) (October 2026)
Live remote servers that need no sign-in and no API key. Paste the URL and go.
Updated 2026-10-18 · live checks of 45,029 servers · How we rank
Top picks
No picks pass this filter right now.
More live servers, ranked by trust
| Server | Status | Sign-in | Tools | Trust |
|---|---|---|---|---|
| Exa | Live | No auth | 2 | A |
| Microsoft Learn MCP | Live | No auth | 3 | A |
| Bitbybit CAD MCP | Live | No auth | 7 | A |
| GitDiagram | Live | No auth | 3 | A |
| MCP Docs Server | Live | No auth | 3 | A |
| Cloudflare | Live | No auth | 2 | A |
| draw.io | Live | No auth | 3 | A |
| Front-End Checklist | Live | No auth | 11 | A |
| Licensed House Painters | Live | No auth | 3 | A |
| Oh My Posh Validator | Live | No auth | 2 | A |
| MCP Registry Server | Live | No auth | 3 | A |
| Equation.io | Live | No auth | 3 | A |
| Etherscan | Live | No auth | 16 | A |
| Compiler Explorer | Live | No auth | 7 | A |
| Svelte MCP | Live | No auth | 4 | A |
| squirrelscan | Live | No auth | 27 | A |
| XposedOrNot Breach Intelligence | Live | No auth | 6 | A |
| Skill of Skills | Live | No auth | 6 | A |
| COTAL actions (cotal.ai) | Live | No auth | 12 | A |
| runx | Live | No auth | 2 | A |
| Docs | Live | No auth | 4 | A |
| RevoGrid DataGrid MCP | Live | No auth | 8 | A |
| Mu | Live | No auth | 167 | A |
| OpenCaseLaw — Swiss Caselaw, Statutes & Doctrine | Live | No auth | 42 | A |
| RevoGrid DataGrid MCP Pro | Live | No auth | 8 | A |
| Labelhead Artist Momentum | Live | No auth | 3 | A |
| Tldraw | Live | No auth | 6 | A |
| emailmd | Live | No auth | 3 | A |
| Semiotic | Live | No auth | 5 | A |
| Bilig WorkPaper | Live | No auth | 8 | A |
What are the best free mcp servers (no api key)?
Exa, Microsoft Learn MCP, Bitbybit CAD MCP, based on search demand and canmyaiuse live checks on 2026-10-18.
How is this list ranked?
Our picks follow real search demand for each app's MCP server, then we choose the best live server for that app (official first). The second list ranks every other live server by trust score: uptime, verified publisher, maintenance, adoption and transparency.
Can I pay to be on this list?
No. Rankings and grades can't be bought. Sponsored slots are always labeled Featured and sit outside the ranking.
Build one of these? Add the free live badge or get featured.