LangChain vs LlamaIndex MCP: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for LangChain and LlamaIndex MCP side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
LangChain
Build LLM-powered applications
Best for you if:
- • You want great for AI apps
LlamaIndex MCP
Connect your private data to any AI agent via a universal protocol
Best for you if:
- • You want connect your private data to any AI agent via a universal protocol
| At a Glance | LangChain | LlamaIndex MCP |
|---|---|---|
Starts at | Free plan, paid from $39/mo, billed monthly Plus plan | Free plan |
Category | AI Agents Developer Tools | Developer Tools AI Agents |
Rating | 4.6/5 G2 4.5 · SourceForge 5.0 127 reviews | n/a |
Free plan | Yes | Yes |
Watch out for | Potential overage fees for traces | 100 user seat limit on all tiers |
Choose LangChain or LlamaIndex MCP?
Choose LangChain if
- You want great for AI apps
- You want active development
- You work in AI agents, not developer tools
Choose LlamaIndex MCP if
- You want connect your private data to any AI agent via a universal protocol
- You work in developer tools, not AI agents
In-Depth Analysis
LangChain
Build LLM-powered applications
LangChain's pricing is quite generous, especially with a robust free Developer tier offering 5,000 traces/month.
Watch out
Potential overage fees for traces
Strengths
- Pro: Great for AI apps
- Pro: Active development
- Pro: Large community
Weaknesses
- Con: Fast changing API
- Con: Can be complex
Key features
LlamaIndex MCP
Connect your private data to any AI agent via a universal protocol
The Free tier offers a generous 10K credits for exploration, but the Starter and Pro tiers are pay-as-you-go with caps of $500 and $5,000 per month, which is expensive for small teams but reasonable for heavy AI integrations.
Watch out
100 user seat limit on all tiers
Key features
Plans and prices: LangChain vs LlamaIndex MCP
| Tool | Plans and prices | Source |
|---|---|---|
| LangChain |
| langchain.com/pricing read Oct 2, 2026 |
| LlamaIndex MCP |
| llamaindex.ai/pricing read Oct 17, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on LangChain pricing and LlamaIndex MCP pricing.
Key Takeaways
LangChain
- Choose if you want build LLM-powered applications
LlamaIndex MCP
- Choose if you want connect your private data to any AI agent via a universal protocol
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Only LangChain has a published user rating (4.6/5 from 127 reviews); LlamaIndex MCP has none we can show.
- LangChain starts at $39/mo, billed monthly; LlamaIndex MCP has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do LangChain and LlamaIndex MCP compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Only LangChain has a published user rating (4.6/5 from 127 reviews); LlamaIndex MCP has none we can show. LangChain starts at $39/mo, billed monthly; LlamaIndex MCP has no public paid plan price on file. Both have a free plan.
What are LangChain and LlamaIndex MCP used for?
LangChain: Build LLM-powered applications. LlamaIndex MCP: Connect your private data to any AI agent via a universal protocol.
What does LangChain cost vs LlamaIndex MCP?
LangChain's cheapest paid plan is Plus at $39/mo, billed monthly; it also has a free plan. LlamaIndex MCP has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 17, 2026.
What's the main difference between LangChain and LlamaIndex MCP?
LangChain's main strength: great for AI apps. LlamaIndex MCP focuses on connect your private data to any AI agent via a universal protocol.