RouterPlex
RouterPlex is an OpenAI- and Anthropic-compatible AI gateway that fronts 39 chat and image models from 14 vendors — OpenAI, Anthropic, Google, DeepSeek, Moonshot, Alibaba, MiniMax, Zhipu, xAI and others — behind one API key and one prepaid balance, at vendor list prices with no markup and no top-up fee. It exposes OpenAI Chat Completions, the OpenAI Responses route for Codex, Anthropic Messages, image generation and a model catalog on a single v1 REST surface, so the official OpenAI and Anthropic SDKs work unmodified with only a base URL change. Per-key hard spend budgets, model allowlists and optional RPM/TPM limits are the containment model for autonomous agents. RouterPlex also runs an anonymous read-only MCP server for model discovery and publishes an RFC 9727 API catalog, an OpenAPI 3.1 description, llms.txt and Markdown pricing and benchmark companions.
RouterPlex publishes 5 APIs on the APIs.io network, including Chat API, Images API, Messages API, and 2 more. Tagged areas include llm, ai, ai-gateway, inference, and model-router.
RouterPlex’s developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, pricing, and 30 more developer resources.
Kin Score
APIs 5
Individual APIs this provider publishes, each with its own machine-readable definition.
RouterPlex Chat API
The Chat API from RouterPlex — 1 operation(s) for chat.
RouterPlex Images API
The Images API from RouterPlex — 1 operation(s) for images.
RouterPlex Messages API
The Messages API from RouterPlex — 1 operation(s) for messages.
RouterPlex Models API
The Models API from RouterPlex — 1 operation(s) for models.
RouterPlex Responses API
The Responses API from RouterPlex — 1 operation(s) for responses.
Open Collections 6
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONRouterPlex Chat API
OPEN COLLECTIONRouterPlex Images API
OPEN COLLECTIONRouterPlex Messages API
OPEN COLLECTIONRouterPlex Models API
OPEN COLLECTIONRouterPlex Responses API
OPEN COLLECTIONMCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
RouterPlex Public Catalog
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Routerplex Plans
PLANSRate Limits 1
Documented rate limits and quota policies.
Routerplex Rate Limits
RATE LIMITSSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 5
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 4
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 5
Properties that don't map to a standard resource type