AgentIndex icon
AgentIndex
ToolsMCP ServersHOTCategoriesTrendingNewBest ListsCompareGuides
Submit Tool
ToolsMCP ServersHOTCategoriesTrendingNewBest ListsCompare
Home/
RAG / Knowledge Base/
lastsearch
lastsearch logo

lastsearch

Active·★ 20·Apache-2.0·Updated 2026-10-18

LastSearch provides a robust research infrastructure for AI agents, offering real-time web search, evidence extraction, and multi-step verification to ensure every claim is backed by a URL and has an evidence-based confidence score. It features iterative deep research modes, persistent memory sessions for collaborative knowledge accumulation, and integrates with various platforms like Python SDK and LangChain.

#AI Agents#Web Search#Fact-Checking#Knowledge Base#LLM Grounding#Retrieval Augmented Generation
© 2026 AgentIndex.app|Built by a 10-year iOS Developer.
Best by use caseAboutContactAdvertisePrivacy PolicyTerms of UseQYSGitHubBuy me a coffee ☕

Browse by Category

MCP ServersCode AssistantWorkflow AutomationRAG / Knowledge BaseMulti-AgentBrowser AutomationLLM InfraDev ToolingObservability

Not affiliated with Anthropic, OpenAI or Microsoft.

Guides
#Verification Engine
#Research Automation
$ Install
$ pip install lastsearch
↗ Visit site★ GitHub
01

Features

01Evidence-Based Verification & Confidence Scoring: Multi-step pipeline including atomic claim decomposition, hybrid retrieval, semantic reranking, and cross-source consensus to ensure accuracy.
02Multiple Research Depth Modes: From `fast` lookups to `thorough` iterative verification and `deep` multi-step agentic reasoning with gap analysis.
03Research Memory (Sessions): Persistent sessions that accumulate verified knowledge across multiple queries, allowing for collaborative and forkable research workflows.
04Self-Improving Accuracy via Feedback Loop: The verification pipeline automatically improves with user feedback, adjusting domain authority, thresholds, and confidence weights.
05Enterprise Search Providers: Integrate with internal data sources like Elasticsearch and Confluence, including zero data retention options for compliance.
02

Compatibility

Python
SDK
Verified via docs
LangChain
Integration
Verified via docs
MCP Server (Node.js)
Runtime
Verified via docs
REST API
Interface
Verified via docs
03

Quick start

1
$ pip install lastsearch
04

Use cases

↳AI Agent Grounding: Provide reliable, cited information to AI agents, preventing hallucinations and ensuring factual accuracy.
↳Fact-Checking and Content Verification: Verify claims, surface contradictions, and assess the trustworthiness of information for critical research or content creation.
↳Collaborative Research: Share and fork research sessions to enable multi-agent or human-agent teams to build deeper knowledge over time.
↳Building Knowledge Bases from Internal Data: Use enterprise search providers to ground LLMs on company-specific knowledge for internal tools or customer support bots.
↳Automated Research for Complex Questions: Leverage deep mode for iterative, multi-step agentic research to comprehensively answer complex inquiries.
05

Alternatives

⚡Top VS:
VSsample-okf-llm-wiki★33→VSmcp-unifi-applications★40→VScrystalline★17→

Comments

Log in to leave a comment

No comments yet. Be the first!

On this page
01Features02Compatibility03Quick start04Use cases05Alternatives
VS
stashbase
★1.1k
→
sample-okf-llm-wiki logo
sample-okf-llm-wiki★ 33
Data Wiki turns data into portable knowledge bundles following Open Knowledge Format (OKF) and serves them to AI agents over the Model Context Protocol (MCP).
VSCompare→
mcp-unifi-applications logo
mcp-unifi-applications★ 40
UniFi MCP server that makes the official UniFi API documentation (Network, Protect, Site Manager, InnerSpace) queryable by AI agents — endpoint search, schema drill-down, code examples in 5 languages. Read-only, no controller credentials.
VSCompare→
crystalline logo
crystalline★ 17
Local-first crystalline intelligence for AI agents: the knowledge that endures across sessions, taught as Markdown Domains and captured as Engrams. One Rust binary with MCP server, CLI and hybrid search.
VSCompare→
stashbase logo
stashbase★ 1.1k
Turn local files into searchable context for AI agents.
VSCompare→
MisakaNet logo
MisakaNet★ 543
📚 A zero-dependency, git-backed micro-lesson library for AI Agents to asynchronously share and search verified debugging experience. Python stdlib only. | https://misakanet.org
VSCompare→
tela logo
tela★ 85
Open-source, self-hostable markdown team wiki with a built-in MCP server — so AI agents read, write, and search your docs as first-class teammates. Live multiplayer, semantic + full-text search. Go + PostgreSQL + React/Milkdown.
VSCompare→
agent-search-mcp logo
agent-search-mcp★ 112
Free, lightweight MCP web search for AI agents with zero-key sources, compact multi-source evidence, and native Chinese search.
VSCompare→
wet logo
wet★ 19
Open-source MCP server for AI agents: web search, content extraction, and library docs -- 5-strategy scraping, runs without API keys.
VSCompare→
See all alternatives →
LastSearch-HQ /
lastsearch
↗

Reliable research infrastructure for AI agents. Evidence-backed web search with citations, confidence scores, and Clarity anti-hallucination. MCP server, REST API, Python SDK.

20Apache-2.0
Last commit5d ago
StatusActive
CategoryRAG / Knowledge Base
Links
Documentation↗Discussion↗Issues↗Releases↗
Cloud Infrastructure
Ad

Deploy on DigitalOcean

Host your MCP servers, Docker containers, and AI agents with $200 free credit over 60 days.

Claim $200 Free Credit