AI Tools That Integrate with LangChain (Freemium)

17 tools

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Respan
AI Infrastructure
AI router with built-in observability and automated evaluations.
- LLM Observability
- Automated Evals
- Prompt Optimization
Freemium
From $199/month
Details
Future AGI
AI Agents
Builds self-improving AI agents with observability and optimization.
- AI Agents
- Observability
- AI Optimization
Freemium
From $750/month
Details
Pinecone
AI Infrastructure
AI knowledge platform for accurate, fast, cost-effective AI.
- AI Knowledge
- Vector Databases
Freemium
From $50/month
Details
Keywords AI
AI Infrastructure
AI router with observability and automated evaluations
- LLM Engineering
- LLM Observability
- LLM Evals
Freemium
From $199/month
Details
ManyPI
Marketing
AI sales agent for lead generation and cold email outreach
- AI Sales Agent
- Lead Generation
- Cold Email Software
Freemium
Details
Metaphor
AI Search
Search API for AI agents needing real-time web data and deep research.
- Real-Time Web Data
- Deep Research
- Enterprise Security
Freemium
Details
PandaProbe
AI Agents
Traces agent runs, evaluates outcomes, and turns failures into fixes.
- Agent Self-Repair
- Agent Evaluation
- Agent Tracing
Freemium
From $29/month
Details
Execlave
AI Agents
Checks AI agent actions against policy before execution and records audit evidence.
- AI Agent Governance
- Policy Enforcement
- Compliance
Freemium
From $199/month
Details
Opik
AI Infrastructure
End-to-end AI observability platform for developers with agent testing, optimization, and monitoring.
- AI Observability
- LLM Monitoring
- Agent Testing
Freemium
From $19/month
Details
Loomal
AI Infrastructure
Enables AI agents to pay for and buy from your store using USDC on Base.
- USDC on Base
- Per-Request Pricing
- Signed Receipts
Freemium
From $199/month
Details
Traccia
AI Infrastructure
AI agent control plane for observability, evaluation, and governance
Freemium
From $799/month
Details
ZooData
AI Infrastructure
Agent-native commerce intelligence API for real-time products, market analysis, and competitor lookup.
- Commerce Intelligence
- Real-Time Data
- Market Analysis
Freemium
From $29/month
Details
CometAPI
AI Infrastructure
Access 500+ AI models with a single API key.
- AI API
- Unified AI API
- Developer Tools
Freemium
From $50/month
Details
Context.dev
Data & Analytics
Scrape URLs into LLM-ready Markdown, crawl sites, and extract structured data via API.
- Web Scraping API
- Scrape API
- Crawl Website
Freemium
Details
Donely
AI Agents
Autonomous AI security agent for continuous vulnerability testing and exploit validation.
- Exploit Validation
- Continuous Security Testing
Freemium
Details
NovaSynth by Noveum
AI Agents
Evaluates chat, voice, and workflow AI agents with validated fixes.
- AI Agent Monitoring
- Agent Evaluation
- Free Plan
Freemium
Details
Phoenix
Machine Learning
Open source AI development platform for monitoring and improving AI quality.
Freemium
From $50/month
Details

Showing 1–17 of 17 tools