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Fastino Labs

Fastino Labs openai-compat API

OpenAI-compatible endpoints. Use with the OpenAI SDK by setting base_url=https://api.pioneer.ai/v1.

Documentation Provider Profile APIs.io OpenAPI GitHub

Fastino Labs openai-compat API is one of 4 APIs that Fastino Labs publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include openai-compat. The published artifact set on APIs.io includes an OpenAPI specification, authentication docs, and rate-limit docs.

This API exposes 2 operations across 2 paths, and defines 10 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0.

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

2 operations 2 paths 10 schemas 2 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.pioneer.ai
Authentication
API Key, HTTP Bearer
Contact
Pioneer AI
Resource Areas
1

Authentication & Security 2

Fastino Labs openai-compat API declares 2 security schemes for authenticating requests. An API key is passed in the header as X-API-Key (ApiKeyAuth). It accepts HTTP bearer tokens (JWT) (BearerAuth). By default, every request must be authenticated.

  • ApiKeyAuth — Pioneer API key. Generate one at https://agent.pioneer.ai/settings/api-keys. Keys begin with piosk.
  • BearerAuth — Supabase access token or Pioneer API key as a Bearer token.

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 POST. Each is listed below with its method, path, parameters, and response codes.

openai-compat 2

OpenAI-compatible endpoints. Use with the OpenAI SDK by setting baseurl=https://api.pioneer.ai/v1.

POST
/v1/chat/completions
Chat completions (OpenAI-compatible)
create_chat_completion body → 200401402404422429
POST
/v1/completions
Text completions (OpenAI-compatible)
create_text_completion body → 200401402404422429

Schemas 10

The contract defines 10 schemas that model the data the API accepts and returns. The most detailed are ChatCompletionRequest (19 properties), TextCompletionRequest (10 properties), ChatCompletionResponse (7 properties), TextCompletionStreamChunk (7 properties). Each schema is shown below with its type and property counts.

TextCompletionRequest
object
10 properties 2 required
UsageStats
object
4 properties
ValidationErrorResponse
object
1 property
TextCompletionResponse
object
7 properties 6 required
ChatCompletionRequest
object
19 properties 2 required
PioneerExtension
object
Pioneer-specific extension on OpenAI-compatible responses.
2 properties
ErrorResponse
object
1 property
TextCompletionStreamChunk
object
One SSE event payload for /v1/completions when stream=true.
7 properties
ChatCompletionResponse
object
7 properties 6 required
ChatCompletionStreamChunk
object
One SSE event payload when stream=true. Terminal chunk carries finishreason and optionally usage and xpioneer. Stream ends with data: [DONE].
7 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fastino-labs-openai-compat-api-openapi.yml Raw ↑

Other APIs Fastino Labs publishes across the network.

Fastino Labs anthropic-compat API
AE Profile APIs.io
Fastino Labs inference API
AE Profile APIs.io
Fastino Labs inference-history API
AE Profile APIs.io
#openai-compat
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API Details
ID
fastino-labs:fastino-labs-openai-compat-api
Base URL
https://api.pioneer.ai
Docs
https://docs.pioneer.ai/api-reference
Provider
Fastino Labs
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This is an independent, third-party profile of Fastino Labs openai-compat API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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