The Chat API provides a programmatic chat-style text generation interface. It accepts a sequence of messages and returns model responses. Intended for assistant-like interactions and evaluation. Streaming responses are supported.
Parallel Chat API (Beta) API is one of 8 APIs that Parallel publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Chat API (Beta). The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, and authentication docs.
This API exposes
1 operation
across 1 path,
and defines 35 schemas.
It is described by OpenAPI 3.1.0, at version 0.1.2.
Requests are made against a single base URL, https://api.parallel.ai.
1 operations1 paths35 schemas1 POST
Metadata
The identity and technical contract details declared by the specification.
Parallel Chat API (Beta) API declares
1 security scheme
for authenticating requests.
An API key is passed in the header as x-api-key (ApiKeyAuth).
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 API (Beta) 1
The Chat API provides a programmatic chat-style text generation interface. It accepts a sequence of messages and returns model responses. Intended for assistant-like interactions…
The contract defines 35 schemas that model the data the API accepts and returns. The most detailed are ChatCompletionResponseChunk (12 properties), ChatCompletion (11 properties), ChatCompletionRequest (11 properties), ModerationInputModerationResultsResult (6 properties). Each schema is shown below with its type and property counts.
JSONSchema
object
Structured Outputs configuration options, including a JSON Schema.
4 properties1 required
CompletionTokensDetails
object
Breakdown of tokens used in a completion.
4 properties
TopLogprob
object
3 properties2 required
ChatMessage
object
Chat message for OpenAI API.
3 properties2 required
PromptTokensDetails
object
Breakdown of tokens used in the prompt.
2 properties
ChatCompletionResponseChunk
object
Chat completion response chunk.
12 properties6 required
HTTPValidationError
object
1 property
ModerationInputModerationResult
object
A moderation result produced for the response input or output.
6 properties6 required
openai__types__chat__chat_completion__Moderation
object
Moderation results for the request input and generated output, if moderated completions were requested.
2 properties2 required
Choice
object
4 properties2 required
ChatCompletionTokenLogprob
object
4 properties3 required
ModerationInputError
object
An error produced while attempting moderation for the response input or output.
3 properties3 required
FieldBasis
object
Citations and reasoning supporting one field of a task output.
4 properties2 required
ChoiceDeltaFunctionCall
object
Deprecated and replaced by toolcalls. The name and arguments of a function that should be called, as generated by the model.
2 properties
ChatCompletion
object
Chat completion response.
11 properties5 required
ModerationOutputModerationResultsResult
object
A moderation result produced for the response input or output.
6 properties6 required
ChoiceLogprobs
object
Log probability information for the choice.
2 properties
ChoiceDelta
object
A chat completion delta generated by streamed model responses.
5 properties
ModerationInputModerationResults
object
Successful moderation results for the request input or generated output.
3 properties3 required
ChoiceDeltaToolCallFunction
object
2 properties
Citation
object
A citation for a task output.
3 properties1 required
ValidationError
object
3 properties3 required
ChatCompletionRequest
object
Request for the chat completions endpoint. Note that all parameters except for model, stream, and responseformat are ignored.
JSON object response format. An older method of generating JSON responses. Using jsonschema is recommended for models that support it. Note that the model will…
1 property1 required
CompletionUsage
object
Usage statistics for the completion request.
5 properties3 required
ResponseFormatJSONSchema
object
JSON Schema response format. Used to generate structured JSON responses. Learn more about [Structured Outputs](https://platform.openai.com/docs/guides/structur…
2 properties2 required
ChoiceDeltaToolCall
object
4 properties1 required
ModerationInputModerationResultsResult
object
A moderation result produced for the response input or output.
6 properties6 required
ModerationOutputModerationResult
object
A moderation result produced for the response input or output.
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