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FlexAI Completions API

Legacy text completions

FlexAI Completions API is one of 7 APIs that FlexAI publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Completions. 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 1 schema. It is described by OpenAPI 3.0.3, at version v1.

Requests are made against a single base URL, https://tokens.flex.ai/v1.

1 operations 1 paths 1 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
v1
Base URL
https://tokens.flex.ai/v1
Authentication
HTTP Bearer
Contact
Terms of Service
Resource Areas
1

Authentication & Security 1

FlexAI Completions API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — FlexAI API key passed as a bearer token: Authorization: Bearer $FLEXAIAPIKEY. Create a key at https://tokens.flex.ai/signup.

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

Legacy text completions

POST
/completions
Create a text completion (legacy)
createCompletion body → 200400401429

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is ErrorResponse (1 property). Each schema is shown below with its type and property counts.

ErrorResponse
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

flexai-completions-api-openapi.yml Raw ↑

Other APIs FlexAI publishes across the network.

FlexAI Audio API
FlexAI Chat API
FlexAI Embeddings API
FlexAI Images API
FlexAI Models API
FlexAI Video API
Where this information came from

This is an independent, third-party profile of FlexAI Completions 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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