Comparison
langchainjs vs mcpproxy-go
Verdict
Pick langchainjs if langChain.js is a TypeScript-based tool designed for building AI agents. It simplifies the development process with its specific focus and ease of installation via popular package managers; pick mcpproxy-go if mcpproxy-go is a proxy server built for developers to enhance AI agents with functionality and security features through the Model Context Protocol (MCP). It supports tool routing.
Markdown twin · langchainjs alternatives · mcpproxy-go alternatives
GraphCanon updated 2w
vs
Trust & integrity
| Signal | langchainjs | mcpproxy-go |
|---|---|---|
| Maintenance | Very active (0d since push) As of 2w · github_public_v1 | Very active (0d since push) As of 3w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 2w · github_public_v1 | Not a fork · Organization account As of 3w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No published findings from this source as of 2026-07-11 As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- langchainjs
- The agent engineering platform
- mcpproxy-go
- Supercharge AI Agents, Safely
Stars
- langchainjs
- 18k
- mcpproxy-go
- 305
Forks
- langchainjs
- 3.3k
- mcpproxy-go
- 43
Open issues
- langchainjs
- 475
- mcpproxy-go
- 15
Language
- langchainjs
- TypeScript
- mcpproxy-go
- Go
Adopt for
- langchainjs
- LangChain.js is a TypeScript-based tool designed for building AI agents. It simplifies the development process with its specific focus and ease of installation via popular package managers.
- mcpproxy-go
- mcpproxy-go is a proxy server built for developers to enhance AI agents with functionality and security features through the Model Context Protocol (MCP). It supports tool routing, audit logging, and provides a web UI.
Persona
- langchainjs
- -
- mcpproxy-go
- -
Runtime
- langchainjs
- -
- mcpproxy-go
- -
License
- langchainjs
- MIT
- mcpproxy-go
- MIT
Last pushed
- langchainjs
- Aug 7, 2026
- mcpproxy-go
- Aug 2, 2026
Categories
- langchainjs
- AI Agents, Developer Tools
- mcpproxy-go
- AI Agents, Developer Tools
Trust and health
Open issues (now)
- langchainjs
- 475
- mcpproxy-go
- 15
OSV dependency advisories
- langchainjs
- No lockfile (source not queried)
- mcpproxy-go
- No published findings from this source as of 2026-07-11
Full report
- langchainjs
- Trust report
- mcpproxy-go
- Trust report
Choose langchainjs if…
- langchainjs is primarily TypeScript; mcpproxy-go is Go.
- Tags unique to langchainjs: typescript.
- - You are working specifically with TypeScript projects, as LangChain.js leverages TypeScript's strong typing to enhance agent-building quality.
When NOT to use langchainjs
- - When the project or team lacks experience with TypeScript. Since LangChain.js is built on TypeScript, leveraging its full potential might be challenging without proficiency in this language.
- - In scenarios requiring minimal dependencies where a lightweight setup is necessary. LangChain.js relies on specific installation methods and may not fit environments that restrict the use of package
- managers like npm or yarn
Choose mcpproxy-go if…
- mcpproxy-go is primarily Go; langchainjs is TypeScript.
- Pricing: mcpproxy-go is free to use under the MIT license; however, premium support or advanced features may have associated costs..
- Requirements: Min 2 GB RAM; The installation process varies by operating system and includes options for manual setup as well as automated installers for ease of use..
- Tags unique to mcpproxy-go: audit-logging, context-window, local-first, model-context-protocol.
- mcpproxy-go ships Docker support for self-hosted deployment.
- When you need a Go-based solution that focuses specifically on enhancing AI functionalities using MCP.
When NOT to use mcpproxy-go
- When a simpler proxy solution that does not offer specialized AI-focused tools like MCP or advanced logging is sufficient.
- If your project is strictly frontend and does not require backend server enhancement features such as those provided by mcpproxy-go's tool-routing capabilities.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (langchain-ai/langchainjs) · observed Aug 8, 2026
- GitHub forks (langchain-ai/langchainjs) · observed Aug 8, 2026
- Last push (langchain-ai/langchainjs) · observed Aug 7, 2026
- License file (MIT) · observed Aug 8, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (smart-mcp-proxy/mcpproxy-go) · observed Aug 2, 2026
- GitHub forks (smart-mcp-proxy/mcpproxy-go) · observed Aug 2, 2026
- Last push (smart-mcp-proxy/mcpproxy-go) · observed Aug 2, 2026
- License file (MIT) · observed Aug 2, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: langchainjs 18k · mcpproxy-go 305 (synced Aug 8, 2026).
Common questions
- What is the difference between langchainjs and mcpproxy-go?
- langchainjs: The agent engineering platform. mcpproxy-go: Supercharge AI Agents, Safely. See the comparison table for live GitHub stats and shared categories.
- When should I choose langchainjs over mcpproxy-go?
- Choose langchainjs over mcpproxy-go when langchainjs is primarily TypeScript; mcpproxy-go is Go; Tags unique to langchainjs: typescript; - You are working specifically with TypeScript projects, as LangChain.js leverages TypeScript's strong typing to enhance agent-building quality.
- When should I choose mcpproxy-go over langchainjs?
- Choose mcpproxy-go over langchainjs when mcpproxy-go is primarily Go; langchainjs is TypeScript; Pricing: mcpproxy-go is free to use under the MIT license; however, premium support or advanced features may have associated costs.; Requirements: Min 2 GB RAM; The installation process varies by operating system and includes options for manual setup as well as automated installers for ease of use.; Tags unique to mcpproxy-go: audit-logging, context-window, local-first, model-context-protocol; mcpproxy-go ships Docker support for self-hosted deployment; When you need a Go-based solution that focuses specifically on enhancing AI functionalities using MCP.
- When should I avoid langchainjs?
- - When the project or team lacks experience with TypeScript. Since LangChain.js is built on TypeScript, leveraging its full potential might be challenging without proficiency in this language. - In scenarios requiring minimal dependencies where a lightweight setup is necessary. LangChain.js relies on specific installation methods and may not fit environments that restrict the use of package managers like npm or yarn
- When should I avoid mcpproxy-go?
- When a simpler proxy solution that does not offer specialized AI-focused tools like MCP or advanced logging is sufficient. If your project is strictly frontend and does not require backend server enhancement features such as those provided by mcpproxy-go's tool-routing capabilities.
- Is langchainjs or mcpproxy-go more popular on GitHub?
- langchainjs has more GitHub stars (18,020 vs 305). Stars measure visibility, not whether either tool fits your constraints.
- Are langchainjs and mcpproxy-go open source?
- Yes - both are open-source projects on GitHub (langchainjs: MIT, mcpproxy-go: MIT).
- Where can I find alternatives to langchainjs or mcpproxy-go?
- GraphCanon lists graph-backed alternatives at langchainjs alternatives and mcpproxy-go alternatives (langchainjs markdown twin, mcpproxy-go markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, langchainjs or mcpproxy-go?
- langchainjs: Very active. mcpproxy-go: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for langchainjs and mcpproxy-go?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: langchainjs trust report; mcpproxy-go trust report.