What is ApexAPI?

ApexAPI provides a unified AI API gateway exposing 14+ providers through a single OpenAI-compatible endpoint.Developers use one API key and a consistent request format to access models from OpenAI, Anthropic, Google (Vertex AI), Mistral, Cohere, Replicate, Groq, Perplexity and others.

Supports chat completions, text and image model endpoints, and real-time token streaming via Server-Sent Events (SSE).Switch providers by changing the model name, manage multiple provider accounts from one interface, and integrate with existing OpenAI SDKs as a drop-in replacement.

Suitable for developer prototypes, multi-model experimentation, and production deployments that require model portability and unified monitoring.

ApexAPI pricing Paid

Starter $10

Developer $25

Pro $50

Scale $100

Verify on the official pricing page.

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ApexAPI's key features

Unified OpenAI-compatible API gateway for multiple model providers
Single API key and consistent request format to access all providers
Support for chat completions, text and image model endpoints, and real-time token streaming via Server-Sent Events (SSE)
Provider switching by model-name and management of multiple provider accounts from one interface
Drop-in compatibility with existing OpenAI SDKs and documentation including API reference, model catalog, authentication, rate limits, and streaming examples

ApexAPI use cases

Build a multi-model experimentation platform with apexapi's unified AI gateway and single-key access, enabling teams to switch providers, compare chat/text/image models, and port models without changing integration code
Integrate real-time token streaming and SSE into chatbots and collaborative apps using apexapi's drop-in SDK replacement to deliver low-latency, token-by-token responses and seamless provider failover
Consolidate multi-provider account management, billing, and model selection for production pipelines by routing text, chat, and image requests through apexapi's single endpoint to simplify deployment, scaling, and provider fallback