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Provider, API, MCP, framework and protocol are different entities. These original source-linked notes are separate from the imported index and its counters; selection is editorial, not a performance ranking.

EDITORIAL · FRAMEWORK DOCUMENTATION · Agent frameworks

LangChain

LangChain documents a framework for composing models, tools and agent behaviour. It is a software framework, not a universal hosted API endpoint.

Official documentation ↗

Documentation reviewed 2026-10-28. No provider operation tested.

All editorial references and Datoka examples →

This count is registry listings, not unique companies or services tested by Datoka. One provider may have several integrations or endpoints.

72 indexed listings for “LangChain” · Reset filters
EXTERNAL

LLM Orchestration Agent 2

LLM Orchestration Agent 2: composes langchain + langchain-anthropic + langchain-openai + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

LLM Orchestration Agent (Openai)

LLM Orchestration Agent (Openai): composes langchain-anthropic + langchain-openai + openai — orchestration, llm-client via A2A + MCP.

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

LLM Orchestration Agent

LLM Orchestration Agent: composes langchain-mcp-adapters + langchain-openai + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

LangSmith Traced OpenAI Agent

LangSmith Traced OpenAI Agent: composes langchain-core + langchain-openai + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

LLM Orchestration Agent 5

LLM Orchestration Agent 5: composes langchain-core + langchain-openai + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

Authenticated LLM MCP Agent

Authenticated LLM MCP Agent: composes google-auth-oauthlib + langchain + langchain-community + mcp + openai — oauth-oidc, orchestration, agent-protocol, llm-client via…

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

LLM Orchestration MCP Agent

LLM Orchestration MCP Agent: composes cryptography + langchain + langchain-core + mcp + opentelemetry-sdk + python-jose — crypto, orchestration, agent-protocol, observ…

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

OAuth Multi-LLM Orchestrator

OAuth Multi-LLM Orchestrator: composes cryptography + google-auth-oauthlib + langchain + langchain-anthropic + mcp + openai + opentelemetry-sdk — crypto, oauth-oidc, o…

A2A

Listing info 50/100

Metadata needs editorial review. This listing is separate from the editorial selection; no service failure is inferred.

Price not supplied by publisherIndexed
EXTERNAL

api-changelog

SDK breaking-change tracker for AI agents — Anthropic/OpenAI/LangChain/MCP/Mistral.

MCP

Listing info 65/100

Price not supplied by publisherIndexed
EXTERNAL

authenticated-llm-agent

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion.

MCP

Listing info 65/100

Price not supplied by publisherIndexed
EXTERNAL

authenticated-mcp-agent

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion.

MCP

Listing info 65/100

Price not supplied by publisherIndexed
EXTERNAL

llm-observability-orchestration

Run a prompt through a LangChain (system + human) chain over Gemini on Vertex AI; optional LangSmith

MCP

Listing info 65/100

Price not supplied by publisherIndexed

Indexed listings, not certifications. Completeness is not proof of working service. Prices and protocols are publisher declarations. How the index works