Letta Chat API is one of 41 APIs that Letta publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 14 JSON Schema definitions.
Tagged areas include Chat. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, pricing, a changelog, and 14 JSON Schemas.
This API exposes 1 operation across 1 path, and defines 40 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0.
Requests are made against 3 base URLs: https://api.letta.com, https://app.letta.com, http://localhost:8283.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Letta Chat API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (bearerAuth).
By default, every request must be authenticated.
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.
Chat operations.
Schemas 40
The contract defines 40 schemas that model the data the API accepts and returns. The most detailed are ChatCompletionRequest (11 properties), ChatCompletion (8 properties), ChatCompletionMessage (7 properties), ChatCompletionAssistantMessageParam (7 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 Letta 12
Other APIs Letta publishes across the network.
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