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Fireworks AI

Fireworks AI Completions API

The Completions API from Fireworks AI — 1 operation(s) for completions.

Documentation Provider Profile APIs.io OpenAPI GitHub

Fireworks AI Completions 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 Completions. 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 21 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 21 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 Completions 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.

Completions 1
POST
/v1/completions
Create Completion
create_completion_v1_completions_post body → 200422

Schemas 21

The contract defines 21 schemas that model the data the API accepts and returns. The most detailed are CompletionRequest (40 properties), NewLogProbsContent (9 properties), RawOutput (8 properties), CompletionResponseStreamChoice (7 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
PredictedOutput
object
OpenAI-compatible struct for the "speculation" field.
2 properties 1 required
ChatMessageContentImageURL
object
2 properties 1 required
CompletionRequest
object
40 properties 2 required
CompletionResponse
object
The response message from a /v1/completions call.
7 properties 5 required
Choice
object
A completion choice.
7 properties 2 required
NewLogProbsContent
object
9 properties 6 required
PromptTokensDetails
object
1 property
ChatMessageContentVideoURL
object
5 properties 1 required
UsageInfo
object
Usage statistics.
4 properties 2 required
HTTPValidationError
object
1 property
CompletionResponseStreamChoice
object
A streamed completion choice. Attributes: index (int): The index of the completion choice. text (str): The completion response. logprobs (float, optional): The…
7 properties 2 required
ThinkingConfigEnabled
object
Configuration for enabling extended thinking (Anthropic-compatible format).
2 properties 1 required
ChatMessageContent
object
4 properties 1 required
ResponseFormat
object
4 properties 1 required
NewLogProbsContentTopLogProbs
object
4 properties 3 required
CompletionStreamResponse
object
The streamed response message from a /v1/completions call.
7 properties 4 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fireworks-ai-completions-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 Chat 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
#Completions
← Back to F APIs
API Details
ID
fireworks-ai:fireworks-ai-completions-api
Base URL
https://api.fireworks.ai/inference/v1
Docs
https://docs.fireworks.ai/api-reference/post-chatcompletions
Provider
Fireworks AI
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