LangSmith

LangSmith

LangChain
+
+

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About

Skim through traffic with highlighting by content type, status & source, or use powerful filtering tools to precisely match the messages that matter to you. Examine the URL, status, headers & body of each request or response, with inline explanations & docs from MDN. Dig into message bodies with highlighting & auto formatting for JSON, HTML, JS, hex and others, all using the power of Monaco, the editor from Visual Studio Code. Precisely match requests, jump to them when they appear, and edit anything: the target URL, method, headers or body. Manually respond directly to requests as they arrive, or pass them upstream, and pause & edit the real response on the way back. Step through HTTP traffic request by request, or manually mock endpoints and errors. Create rules to match requests and respond with your own content, to quickly prototype against new endpoints or services.

About

Unexpected results happen all the time. With full visibility into the entire chain sequence of calls, you can spot the source of errors and surprises in real time with surgical precision. Software engineering relies on unit testing to build performant, production-ready applications. LangSmith provides that same functionality for LLM applications. Spin up test datasets, run your applications over them, and inspect results without having to leave LangSmith. LangSmith enables mission-critical observability with only a few lines of code. LangSmith is designed to help developers harness the power–and wrangle the complexity–of LLMs. We’re not only building tools. We’re establishing best practices you can rely on. Build and deploy LLM applications with confidence. Application-level usage stats. Feedback collection. Filter traces, cost and performance measurement. Dataset curation, compare chain performance, AI-assisted evaluation, and embrace best practices.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers looking for a solution for debugging, testing and building with HTTP

Audience

Developers seeking a platform to design, build, and test their applications

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Core features (interception, debugging, manual rewriting for all traffic) are all free.

Advanced features (automated rewriting, import/export, advanced configuration options) require a Pro subscription.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • HTTP Toolkit makes it easy to intercept traffic even in complicated cases, like Docker, Android and command-line/backend software. The UI looks good (much nicer than older alternatives like Fiddler, Burp and Charles) and the UX is clear. I really like that it's all open source so you can see how it works.

Cons

  • Not quite as feature filled as older tools like Fiddler/Burp/Charles, but rapidly improving and it's possible to contribute to help move things forwards.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

HTTP Toolkit
Founded: 2018
Spain
httptoolkit.com

Company Information

LangChain
United States
www.langchain.com/langsmith

Alternatives

Alternatives

Fiddler

Fiddler

Progress Software
Braintrust

Braintrust

Braintrust Data
Griptape

Griptape

Foundry
LangGraph

LangGraph

LangChain

Categories

Categories

Integrations

AgentForge
Android
Azure Marketplace
Brave Browser
Disco.dev
Docker
Electron
Google Chrome
LangChain
LangGraph
Microsoft Edge
Mozilla Firefox
Noma
Semarchy xDI
TierZero
Voker
ZenML

Integrations

AgentForge
Android
Azure Marketplace
Brave Browser
Disco.dev
Docker
Electron
Google Chrome
LangChain
LangGraph
Microsoft Edge
Mozilla Firefox
Noma
Semarchy xDI
TierZero
Voker
ZenML
Claim HTTP Toolkit and update features and information
Claim HTTP Toolkit and update features and information
Claim LangSmith and update features and information
Claim LangSmith and update features and information