LangSmith is a platform for engineering AI agents, providing tools to observe, evaluate, and deploy agents. It allows users to build agents without writing code and offers options for data residency.

How much does LangSmith cost?

LangSmith operates on a freemium model, meaning there is likely a free tier or plan available. Specific pricing tiers and costs for advanced features are not detailed on the provided pages.

What can LangSmith do?

LangSmith enables users to observe the execution of their AI agents, evaluate their performance and behavior, and deploy them into various environments. It also supports building agents with a no-code approach.

Is LangSmith free to use?

Yes, LangSmith is available on a freemium model, suggesting that a free tier or plan is offered. Details on what is included in the free tier are not specified.

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LangSmith

Platform for AI agents

No-code agent building

Agent observability

Freemium available

The platform for agent engineering

Last updated: May 30, 2026

FREEMIUM

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smith.langchain.com

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Quick Answer

LangSmith is an AI agent engineering platform that helps users observe, evaluate, and deploy their AI agents. It features no-code agent building and offers data residency choices for US and EU. Best for developers and teams working with AI agents who need robust monitoring and evaluation tools. Freemium plan available.

About LangSmith

LangSmith is a platform designed for engineering AI agents, enabling users to observe, evaluate, and deploy their agents. It supports building agents without requiring code and offers data residency options for US and EU regions. Freemium plans are available.

What Makes It Unique

It allows users to build AI agents without writing code, simplifying the development and deployment process for complex AI systems.

AI-extracted from public sources. May contain errors. Methodology · Are you LangSmith? Claim listing

Use Cases & Target Users

Use Cases

Data Analysis

Best For

Developing AI agents efficiently

Monitoring AI agent performance

Evaluating AI agent reliability

Deploying AI agents at scale

Building AI agents for non-technical users

Company Size

SMALL

MEDIUM

ENTERPRISE

Fit Score

Complexity

Intermediate

Target Team Size

SMALL_TEAM

LARGE_TEAM

Target Skill Level

BEGINNER

INTERMEDIATE

Key Features

Observe AI agent behavior

Evaluate AI agent performance

Deploy AI agents to production

Build AI agents without code

Data residency selection (US Central, EU West)

Authentication via Google, GitHub, Discord, or email

Technical Specifications

API Available

SDK Available

MCP Compatible

Open Source

Team Features

SSO/Enterprise

Webhook Support

Has Demo

Function Calling

Browser Extension

Sandbox Mode

Audit Logs

Free Plan

No Signup

Works Offline

Requires Host App

Framework

MCP Server

IDE Plugin

Inference API

SCIM Provisioning

Developer Access

API

ENTERPRISE

SDK

Deployment:

CLOUD

Pros

+Enables no-code AI agent development
+Provides tools for comprehensive agent observation
+Offers robust agent evaluation capabilities
+Supports deployment of AI agents
+Allows choice of data region for compliance

Limitations

-Limited information on specific pricing tiers and features
-Lack of explicit details on integrations beyond authentication
-No clear mention of advanced team collaboration features
-Website content is minimal, lacking in-depth feature descriptions
-No explicit free trial for paid features mentioned

Decision Intelligence

Best For

Developing AI agents efficiently

Monitoring AI agent performance

Evaluating AI agent reliability

Deploying AI agents at scale

Building AI agents for non-technical users

Not Ideal For

General content generation tasks not related to agents

Simple AI model inference without agentic behavior

Users seeking a standalone LLM interface

Deep learning model training from scratch

Project management for non-AI related tasks

Frequently Asked Questions

Your Actions

Dimension Scores

Ease of Use7/10

Output Quality7/10

Value for Money6/10

Customization5/10

Support5/10

Integration6/10

Task Scores

Data Visualization

3

Dashboard Creation

3

Data Integration

3

Collaboration Sharing

3

Natural Language Queries

2

Data Cleaning

2

Automated Insights

2

Report Generation

2

Trust Score

41/100

Limited Data

Based on 6 data signals

Reflects publicly available data, not an independent audit

Company Strength25/25

Team Size201-500

Funding$260M

Company ListedLangChain

Operational Trust16/20

Uptime SLAEnterprise plans include SLA-backed uptime guarantees.

Status PageView

Data ResidencyUS, EU

Switching & Migration

Migration Difficulty

Moderate Effort

Data portable as:

CSV

JSONL

OPENAI'S FINE-TUNING FORMAT

PARQUET

Email-based support is available for the Plus plan. Dedicated Slack support and a customer success manager are provided for Enterprise plans.

API Access

Quick Stats

CategoryData Analysis

PlatformsWEB, API

Integrations3+

LaunchedFeb 2024

Setup TimeMinutes

AddedMar 2026

Company & Links

CompanyLangChain

Documentation Changelog

LinkedIn Twitter/X Discord

YouTube

AI Tools

AI Tools

LangSmith

Quick Answer

Decision Intelligence

Best For

Not Ideal For

Frequently Asked Questions

What is LangSmith?

How much does LangSmith cost?

What can LangSmith do?

Is LangSmith free to use?

Dimension Scores

Task Scores

Trust Score

Switching & Migration