How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
LangGraph

LangGraph Agent Connections (v2) API

The Agent Connections (v2) API from LangGraph — 2 operation(s) for agent connections (v2).

Documentation Provider Profile APIs.io OpenAPI GitHub

LangGraph Agent Connections (v2) API is one of 5 APIs that LangGraph publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Agent Connections (v2). The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and authentication docs.

This API exposes 3 operations across 2 paths, and defines 5 schemas. It is described by OpenAPI 3.1.0, at version 0.1.0.

Requests are made against the base URL https://api.host.langchain.com.

3 operations 2 paths 5 schemas 1 DELETE1 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
0.1.0
Base URL
https://api.host.langchain.com
Authentication
API Key
Resource Areas
1

Authentication & Security 1

LangGraph Agent Connections (v2) API declares 1 security scheme for authenticating requests. An API key is passed in the header as X-Api-Key (LangSmith API Key).

Paths & Operations 3

Across 2 paths, the API surfaces 3 operations — 1 DELETE, 1 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Agent Connections (v2) 3
GET
/v2/auth/agents/{agent_id}/connections
List Connections
list_connections_v2_auth_agents__agent_id__connections_get 1 param → 200422
POST
/v2/auth/agents/{agent_id}/connections
Create Connection
create_connection_v2_auth_agents__agent_id__connections_post 1 param body → 201422
DELETE
/v2/auth/agents/{agent_id}/connections/{connection_id}
Remove Connection
remove_connection_v2_auth_agents__agent_id__connections__connection_id__delete 2 params → 204422

Schemas 5

The contract defines 5 schemas that model the data the API accepts and returns. The most detailed are AgentConnectionResponse (9 properties), ValidationError (3 properties), AgentConnectionListResponse (1 property), HTTPValidationError (1 property). Each schema is shown below with its type and property counts.

CreateAgentConnectionRequest
object
1 property 1 required
HTTPValidationError
object
1 property
ValidationError
object
3 properties 3 required
AgentConnectionResponse
object
9 properties 9 required
AgentConnectionListResponse
object
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

langgraph-agent-connections-v2-api-openapi.yml Raw ↑

Other APIs LangGraph publishes across the network.

LangGraph Auth Service (v2) API
AE Profile APIs.io
LangGraph Deployments (v2) API
AE Profile APIs.io
LangGraph Integrations (v1) API
AE Profile APIs.io
LangGraph Listeners (v2) API
AE Profile APIs.io
#Agent Connections (v2)
← Back to L APIs
API Details
ID
langgraph:langgraph-agent-connections-v2-api
Base URL
https://api.host.langchain.com
Docs
https://docs.langchain.com/langgraph-platform
Provider
LangGraph
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=langgraph-agent-connections-v2-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/langgraph-agent-connections-v2-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

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

Where this information came from

This is an independent, third-party profile of LangGraph Agent Connections (v2) API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.