LastSearch MCP server
io.github.LastSearch-HQ/lastsearch·v1.4.1·20 starsEvidence-backed web research for AI agents with citations and confidence scores.
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20 stars65 downloads/wk
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If you have run it, two minutes of your experience saves the next person an afternoon.
LastSearch tools
No tool declarations could be read from the package source. They show once the server is installed.
How LastSearch compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 82/100
- higher than 63% of 48,255 servers
- GitHub stars
- 20
- more than 91% of 28,688 servers
- Downloads a week
- 65
- more than 51% of 12,191 servers with a package
Release history: 4 versions in the registry since 2026-09-14, latest 2026-10-27, typically one every 14 days.
Install LastSearch in Claude Code, Cursor or VS Code
Runs npx -y lastsearch on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add lastsearch -- npx -y lastsearch
What the publisher says
From the LastSearch repository's README, as published. We do not edit it. Read it on GitHub
LastSearch
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Research infrastructure for AI agents with Grounded Intelligence — real-time web search, evidence extraction, verification, and structured citations. Every claim is backed by a URL. Every answer has a confidence score.
Agent → LastSearch → Internet → Verified answers + sourcesWebsite · Playground · API Docs · Alternatives · Discord
Package names: npm: lastsearch · PyPI: lastsearch · LangChain: langchain-lastsearch — Previously lastsearch and lastsearch. Old names still work and redirect automatically.
How It Works
search → fetch pages → neural rerank → extract claims → verify → cited answer (streamed)Every answer goes through a multi-step verification pipeline. No hallucination. Every claim is backed by a real source.
Verification & Confidence Scoring
Confidence scores are evidence-based — not LLM self-assessed. After the LLM extracts claims and sources, a post-extraction verification engine checks every claim against the actual source page text:
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
LastSearch: common questions
- Is LastSearch MCP server safe?
- Mostly: it is graded B (82/100). Read the LastSearch safety report
- How do I install LastSearch?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does LastSearch need an API key?
- Yes. The registry entry asks for
LASTSEARCH_API_KEY. - Is LastSearch maintained?
- The last commit was 38 days ago (2026-09-27). The latest release is v1.4.1.
- How does LastSearch compare with other MCP servers?
- safety score 82/100 (higher than 63% of 48,255 servers); github stars 20 (more than 91% of 28,688 servers); downloads a week 65 (more than 51% of 12,191 servers with a package). Full comparison.