In the Crest catalog
langchain-ai/langchainjs
The agent engineering platform
- Stars
- 18.2K
- Forks
- 3.4K
- Language
- TypeScript
- Last push
- 22d ago
- Last release
- 23d ago
Linked by the package’s own registry metadata.GitHub (opens in a new tab)
Package · npm
@langchain/core
npm · v1.2.16 · MIT
Core LangChain.js abstractions and schemas
Tentative categories were assigned with moderate confidence (0.5 to 0.75): they are shown, but they do not count toward a category’s momentum. How categories work
Technologies
Install
npm install @langchain/coreAdoption
- Downloads (30 days)
- 23.3M
- Observeddownloads / 30 days
- Popularity
- Top 25% on npm
- Derived82nd percentile within npm
- Dependents
- Collectinghistory
- Collecting
- Maintenance
- 0.99
- DerivedRelease cadence and recency, 0 to 1
- Releases per year
- 124
- 356 versions over its life
Growth by period
Derived by Crest of Tech from two observations of npm’s own figure, a period apart. Nothing is stored or estimated: without an observation near the period’s start, the period is still collecting.
- 7 days
- +5.5% · 7d
- Derived+1.2M downloads / 30 days, SEP 28 → OCT 5
- 30 days
- +4.9% · 30d
- Derived+1.1M downloads / 30 days, SEP 5 → OCT 5
- 90 days
- +15.9% · 90d
- Derived+3.2M downloads / 30 days, JUL 6 → OCT 5
- 1 year
- +231.2% · 1y
- Derived+16.2M downloads / 30 days, OCT 6 → OCT 5
Adoption history
Adoption historydownloads / 30 days · 30 observations
Table of observations (31)
| Day | downloads / 30 days | Dependents |
|---|---|---|
| OCT 6, 2026 | Not observed | Not observed |
| OCT 5, 2026 | 23,275,097 | Not observed |
| OCT 4, 2026 | 23,758,364 | Not observed |
| OCT 3, 2026 | 24,032,484 | Not observed |
| OCT 2, 2026 | 23,439,077 | Not observed |
| OCT 1, 2026 | 23,421,066 | Not observed |
| SEP 30, 2026 | 23,212,002 | Not observed |
| SEP 29, 2026 | 22,858,938 | Not observed |
| SEP 28, 2026 | 22,053,044 | Not observed |
| SEP 27, 2026 | 21,244,958 | Not observed |
| SEP 26, 2026 | 21,555,352 | Not observed |
| SEP 25, 2026 | 22,079,232 | Not observed |
| SEP 24, 2026 | 22,098,332 | Not observed |
| SEP 23, 2026 | 22,035,471 | Not observed |
| SEP 22, 2026 | 21,848,291 | Not observed |
| SEP 21, 2026 | 21,208,847 | Not observed |
| SEP 20, 2026 | 20,694,147 | Not observed |
| SEP 19, 2026 | 21,063,363 | Not observed |
| SEP 18, 2026 | 21,572,200 | Not observed |
| SEP 17, 2026 | 21,613,782 | Not observed |
| SEP 16, 2026 | 21,574,917 | Not observed |
| SEP 15, 2026 | 21,308,922 | Not observed |
| SEP 14, 2026 | 21,758,029 | Not observed |
| SEP 13, 2026 | 21,101,526 | Not observed |
| SEP 12, 2026 | 20,659,407 | Not observed |
| SEP 11, 2026 | 21,177,844 | Not observed |
| SEP 10, 2026 | 21,196,277 | Not observed |
| SEP 9, 2026 | 21,099,285 | Not observed |
| SEP 8, 2026 | 20,952,140 | Not observed |
| SEP 7, 2026 | 21,402,803 | Not observed |
| SEP 6, 2026 | 21,800,838 | Not observed |
Facts from the registry
- Latest version
- v1.2.16
- 356 versions
- First published
- NOV 22, 2023
- Last release
- OCT 6, 2026
- 18d ago
- Licence
- MIT
Repository
Dependencies latest version · v1.2.16
Runtime 7
- @cfworker/json-schema
^4.0.2 - @standard-schema/spec
^1.1.0 - js-tiktoken
^1.0.12 - langsmith
>=0.5.0 <1.0.0 - mustache
^4.2.0 - p-queue
^6.6.2 - zod
^3.25.76 || ^4
Related packages
- @langchain/anthropicAnthropic integrations for LangChain.jsPublished from the same repository
- @langchain/awsLangChain AWS integrationPublished from the same repository
- @langchain/classicOld abstractions from LangChain.jsPublished from the same repository
- @langchain/deepseekDeepseek integration for LangChain.jsPublished from the same repository
- @langchain/googleGoogle integrations for LangChain.jsPublished from the same repository
- @langchain/google-commonCore types and classes for Google services.Published from the same repository
- keras-hub-nightlyPretrained models for Keras.Same primary category
- nemo-relayPython bindings for the NeMo Relay agent runtime.Same primary category
- pipecat-aiAn open source framework for voice (and multimodal) assistantsSame primary category
- langflow-baseA Python package with a built-in web applicationSame primary category
- compressed-tensorsLibrary for utilization of compressed safetensors of neural network modelsSame primary category
- langgraphBuilding stateful, multi-actor applications with LLMsSame primary category
Related news
No published news event mentions this package or its repository yet.