langchain-mcp
Model Context Protocol tool calling support in LangChain.
Create a langchain_mcp.MCPToolkit with an mcp.ClientSession,
then await toolkit.initialize() and toolkit.get_tools() to get the list of langchain_core.tools.BaseTools.
Example:
Demo
You can run the demo against Groq llama-3.1-8b-instant:
$ export GROQ_API_KEY=xxx
$ uv run tests/demo.py "Read and summarize the file ./LICENSE"
Secure MCP Filesystem Server running on stdio
Allowed directories: [ '/users/aw/projects/rectalogic/langchain-mcp' ]
The file ./LICENSE is a MIT License agreement. It states that the software is provided "as is" without warranty and that the authors and copyright holders are not liable for any claims, damages, or other liability arising from the software or its use.
1 maintainer
Metadata
1 maintainer
Release files for langchain-mcp 0.2.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| langchain_mcp-0.2.1.tar.gz | 61.1 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| langchain_mcp-0.2.1-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 65.2 kB
Release files / langchain_mcp-0.2.1.tar.gz
| Download URL | langchain_mcp-0.2.1.tar.gz |
|---|---|
| Size | 61.1 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
cb5bf34e609746cf40544b2e509ec927acbdcd4fc1031a1689f4ada52459e113
|
|
BLAKE2b-256 checksum How to use checksums |
bc63dc1b4a702de92e298b6b9cebc338c6ac375a0770d67f71613b2fef866198
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.12.9
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Mar 1, 2025.
Transparency logRelease files / langchain_mcp-0.2.1-py3-none-any.whl
| Download URL | langchain_mcp-0.2.1-py3-none-any.whl |
|---|---|
| Size | 4.1 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
d7ddc9b4281cc3eadcc0fcf2151d196ad19038585f9850883ad497254d02ef5b
|
|
BLAKE2b-256 checksum How to use checksums |
567e6d3d54602b7b798af8e704a6cf22ca123fbdc12562d24c30f173fd03ec54
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.12.9
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Mar 1, 2025.
Transparency log
