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Fireworks AI

Fireworks AI Chat API

The Chat API from Fireworks AI — 1 operation(s) for chat.

Documentation Provider Profile APIs.io OpenAPI GitHub

Fireworks AI Chat API is one of 10 APIs that Fireworks AI 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 29 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0.

Requests are made against a single base URL, https://api.fireworks.ai/inference.

1 operations 1 paths 29 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0.0
Base URL
https://api.fireworks.ai/inference/v1
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

Fireworks AI Chat API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (API_KEY) (BearerAuth). By default, every request must be authenticated.

  • BearerAuth — Bearer authentication using your Fireworks API key. Format: 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.

Chat 1
POST
/v1/chat/completions
Create Chat Completion
create_chat_completion_v1_chat_completions_post body → 200422

Schemas 29

The contract defines 29 schemas that model the data the API accepts and returns. The most detailed are ChatCompletionRequest (46 properties), NewLogProbsContent (9 properties), ChatCompletionStreamResponse (8 properties), ChatCompletionResponse (8 properties). Each schema is shown below with its type and property counts.

LogProbs
object
Legacy log probabilities format
5 properties
NewLogProbs
object
OpenAI-compatible log probabilities format
1 property
ValidationError
object
5 properties 3 required
RawOutput
object
Extension of OpenAI that returns low-level interaction of what the model sees, including the formatted prompt and function calls
8 properties 3 required
ThinkingConfigDisabled
object
Configuration for disabling extended thinking (Anthropic-compatible format).
1 property 1 required
ChatCompletionStreamResponse
object
The streamed response message from a /v1/chat/completions call.
8 properties 4 required
PredictedOutput
object
OpenAI-compatible struct for the "speculation" field.
2 properties 1 required
ChatMessageContentImageURL
object
2 properties 1 required
ChatCompletionFunction
object
4 properties 1 required
DeltaMessage
object
A message delta.
4 properties
ChatCompletionTool
object
2 properties 1 required
NewLogProbsContent
object
9 properties 6 required
PromptTokensDetails
object
1 property
ChatCompletionResponse
object
The response message from a /v1/chat/completions call.
8 properties 4 required
FunctionNameSpec
object
1 property 1 required
ChatMessageContentVideoURL
object
5 properties 1 required
ChatCompletionRequest
object
46 properties 2 required
UsageInfo
object
Usage statistics.
4 properties 2 required
ChatCompletionMessageToolCall
object
3 properties 1 required
ChatMessage
object
A chat completion message.
5 properties 1 required
ChatCompletionResponseStreamChoice
object
A streamed chat completion choice.
7 properties 2 required
ChatCompletionResponseChoice
object
A chat completion choice generated by a chat model. Attributes: index (int): The index of the chat completion choice. message (ChatMessage): The chat completio…
6 properties 2 required
HTTPValidationError
object
1 property
ThinkingConfigEnabled
object
Configuration for enabling extended thinking (Anthropic-compatible format).
2 properties 1 required
ChatMessageContent
object
4 properties 1 required
FunctionSelection
object
2 properties 1 required
ResponseFormat
object
4 properties 1 required
NewLogProbsContentTopLogProbs
object
4 properties 3 required
ChatCompletionMessageToolCallFunction
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fireworks-ai-chat-api-openapi.yml Raw ↑

Other APIs Fireworks AI publishes across the network.

Fireworks AI anthropic-messages.openapi_other API
AE Profile APIs.io
Fireworks AI Completions API
AE Profile APIs.io
Fireworks AI Gateway API
AE Profile APIs.io
Fireworks AI gateway-extra.openapi_Gateway API
AE Profile APIs.io
Fireworks AI gateway.openapi_Gateway API
AE Profile APIs.io
Fireworks AI Messages API
AE Profile APIs.io
Fireworks AI Responses API
AE Profile APIs.io
Fireworks AI responses.openapi_other API
AE Profile APIs.io
Fireworks AI text-completion.openapi_other API
AE Profile APIs.io
#Chat
← Back to F APIs
API Details
ID
fireworks-ai:fireworks-ai-chat-api
Base URL
https://api.fireworks.ai/inference/v1
Docs
https://docs.fireworks.ai/api-reference/post-chatcompletions
Provider
Fireworks AI
APIs.io →  GitHub →
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