stale · -1.2 marketcapability

LangChain

Score 16.3 / 100 10 providers 3 APIs Search apis.io →

Providers using this tag (10)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Developing 6 Usable, with meaningful gaps to close

FlowiseFlowise is an open-source, low-code visual builder for LangChain-based LLM workflows and AI agents. Built o...13 APIs48.0 LangWatchLangWatch is an open-source LLM observability, evaluation, and AI agent testing platform. Built around Open...28 APIs47.6 Anchor BrowserAnchor Browser is an AI-native cloud browser infrastructure platform that lets AI agents interact with the ...20 APIs46.8 Mem0Mem0 is a memory infrastructure layer that gives AI agents and applications persistent context across sessi...15 APIs45.4 TavilyTavily is a web access API platform optimized for LLMs and AI agents. It exposes a unified REST surface for...6 APIs41.7 DoclingDocling is an open-source toolkit for parsing diverse document formats — PDF, DOCX, PPTX, XLSX, HTML, image...18 APIs40.3

Thin 2 Limited public surface area

LangflowLangflow is an open-source low-code visual builder for AI agents, RAG pipelines, and LangChain-based workfl...15 APIs37.6 LangSmithLangSmith is the observability, debugging, and evaluation platform for LLM applications, built by LangChain...73 APIs31.3

Emerging 2 Early or largely undocumented

ZepZep is a context engineering and agent memory platform that assembles relevant context from chat history, b...1 API22.8 EvalsA landscape catalog of the platforms, frameworks, libraries, and benchmark suites used to evaluate large la...20 APIs16.0

APIs with this tag (3)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Developing 2 Usable, with meaningful gaps to close

LangChain Anchor Browser ToolsLangChain-ready tools that wrap Anchor Browser-powered browser actions for use inside LangChain and LangGra...46.8 Docling LangChain IntegrationFirst-party LangChain document loader and chunker for Docling. Drops Docling output directly into LangChain...40.3

Emerging 1 Early or largely undocumented

LangSmith EvaluationLangSmith Evaluation is LangChain's evaluation framework for measuring application quality across the lifec...16.0

Score breakdown

Frequency

28.1

log-scaled weighted occurrences

Breadth

0.3

spread across providers

Quality lift

45.2

mean composite of providers using it

Cohesion

0.9

strength of nearest seed neighbor

Where this tag comes from

Api tag3

Provider tag7

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools

Call it yourself

curl for this page

This tag

curl "https://apis.io/api/v1/tags/langchain"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/langchain"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/langchain/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.