LangDB Chat API
OpenAI-compatible chat completions and model routing.
LangDB Chat API is one of 6 APIs that LangDB publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.
Tagged areas include Chat. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and an AsyncAPI specification.
This API exposes 1 operation across 1 path, and defines 6 schemas. It is described by OpenAPI 3.0.1, at version 1.0.
Requests are made against 2 base URLs: https://api.us-east-1.langdb.ai/{project_id}/v1, https://api.us-east-1.langdb.ai.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
LangDB Chat API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (JWT) (bearerAuth).
By default, every request must be authenticated.
bearerAuth— LangDB API key (project access token) sent as Authorization: Bearer .
Paths & Operations 1
Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.
OpenAI-compatible chat completions and model routing.
Schemas 6
The contract defines 6 schemas that model the data the API accepts and returns. The most detailed are ChatCompletionRequest (13 properties), ChatCompletionResponse (6 properties), ChatMessage (4 properties), McpServer (4 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from LangDB 5
Other APIs LangDB publishes across the network.
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