RouterPlex

RouterPlex is an OpenAI- and Anthropic-compatible AI gateway that fronts 64 chat and image models from 15 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 API contracts indexed on the APIs.io network, including Images API, Messages API, Models API, and 2 more. Tagged areas include LLM, Artificial Intelligence, AI Gateway, Inference, and Model Router.

The RouterPlex catalog on APIs.io includes 1 Spectral governance ruleset.

RouterPlex’s developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, pricing, and 31 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

48.1/100 developing ▬ flat Agent 40/100 agent ready Front door AI 6/6 dominant Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers 3 Agent Skills

LLM Artificial Intelligence AI Gateway InferenceModel RouterOpenAI-Compatible Anthropic Compatible Claude GPT Gemini API Gateway Agent Infrastructure Developer Tools MCP LLMOps

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

AI Model Services

AE-110

Chat CompletionsImagesMessagesResponses

POST /chat/completions POST /images/generations POST /responses POST /messages

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 48.1/100 · developing

Contract Quality 10.1 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 9.3 / 15

Operational Transparency 3.3 / 10

Contract Governance 1.6 / 9

Discoverability 6.4 / 8

Regulatory Posture 2.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 40/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 3 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

4 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 36.3 — up to +12.7 composite points
Contract Quality scores 53.9 — up to +11.5 composite points
Contract Governance scores 18.2 — up to +9.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/routerplex/apis.yml: open an issue on github.com/api-evangelist/routerplex to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

The Anthropic Messages Dialect reaches core

declared — publishes a spec that declares them

2 core of 244 operations graded · api-commons/models

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

The OpenAI Interface reaches extended

declared — publishes a spec that declares them

2 core of 338 operations graded · api-commons/models

OpenAPI

measured — observed by APIs.io (published)

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

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.

RouterPlex Chat Completions API

The Chat Completions API from RouterPlex — 1 operation(s) for chat completions.

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

RouterPlex Chat API

OPEN COLLECTION

RouterPlex Images API

OPEN COLLECTION

RouterPlex Messages API

OPEN COLLECTION

RouterPlex Models API

OPEN COLLECTION

RouterPlex Responses API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

RouterPlex Public Catalog

Read-only model discovery, pricing, and official RouterPlex API references.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Call any RouterPlex model through the Anthropic Messages format

AGENT SKILL

Generate an image through RouterPlex

AGENT SKILL

Select a RouterPlex model and call it

AGENT SKILL

RouterPlex API pricing

Prices published by RouterPlex, read 2026-10-28 from routerplex.com/pricing.

Plan	Price
Pay as you go	$0 per token Includes: Balance only; unlimited API keys after paid top-up
Plex Lite	$10/month Includes: $11 model credit, up to 10 API keys
Plex Pro	$30/month Includes: $35 model credit, up to 50 API keys
Plex Max	$100/month Includes: $125 model credit, unlimited API keys

Plan details, limits and sources →

Billed by: token · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Routerplex Plans

4 plans

PLANS

Routerplex Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Routerplex Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

RouterPlex

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Routerplex Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

RouterPlex API Rules

48 rules · 45 errors 1 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Routerplex Inference Overlay

10 actions · documentation · routerplex-inference-openapi.json

DERIVED

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Routerplex Authentication

http · 1 scheme

SECURITY

Routerplex Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Routerplex Agentic Access

5 operations · 4 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

AgentSkill

LLMsTxt

WellKnown

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

ToolCrosswalk

ToolCrosswalk

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Support

Support

Support

Support

RateLimits

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Pricing

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Other 6

Properties that don't map to a standard resource type

CapabilityMap

Overlay

APICatalog

ContentSignal

Playground

Benchmarks

Source (apis.yml)

name: RouterPlex
description: RouterPlex is an OpenAI- and Anthropic-compatible AI gateway that fronts 64 chat and image models from 15 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.
url: https://raw.githubusercontent.com/api-evangelist/routerplex/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://routerplex.com/icon.svg
created: '2026-07-26'
modified: '2026-08-09'
specificationVersion: '0.23'
tags:
- LLM
- Artificial Intelligence
- AI Gateway
- Inference
- Model Router
- OpenAI-Compatible
- Anthropic Compatible
- Claude
- GPT
- Gemini
- API Gateway
- Agent Infrastructure
- Developer Tools
- MCP
- LLMOps
tags_raw:
- llm
- ai
- ai-gateway
- inference
- model-router
- openai-compatible
- anthropic-compatible
- claude
- gpt
- gemini
- api-gateway
- agent-infrastructure
- developer-tools
- mcp
- llmops
apis:
- aid: routerplex:routerplex-images-api
  name: RouterPlex Images API
  description: The Images API from RouterPlex — 1 operation(s) for images.
  humanURL: https://docs.routerplex.com
  baseURL: https://api.routerplex.com/v1
  tags:
  - Image
  tags_raw:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/routerplex-images-api-openapi.yml
  - type: Documentation
    url: https://docs.routerplex.com
  - type: APIReference
    url: https://docs.routerplex.com/chat-completions
  - type: GettingStarted
    url: https://docs.routerplex.com/quickstart
  - type: Authentication
    url: https://docs.routerplex.com/authentication
  - type: ErrorCatalog
    url: https://docs.routerplex.com/errors
  - type: LLMSTxt
    url: https://routerplex.com/llms.txt
  - type: LLMSTxt
    url: https://docs.routerplex.com/llms-full.txt
- aid: routerplex:routerplex-messages-api
  name: RouterPlex Messages API
  description: The Messages API from RouterPlex — 1 operation(s) for messages.
  humanURL: https://docs.routerplex.com
  baseURL: https://api.routerplex.com/v1
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/routerplex-messages-api-openapi.yml
  - type: Documentation
    url: https://docs.routerplex.com
  - type: APIReference
    url: https://docs.routerplex.com/chat-completions
  - type: GettingStarted
    url: https://docs.routerplex.com/quickstart
  - type: Authentication
    url: https://docs.routerplex.com/authentication
  - type: ErrorCatalog
    url: https://docs.routerplex.com/errors
  - type: LLMSTxt
    url: https://routerplex.com/llms.txt
  - type: LLMSTxt
    url: https://docs.routerplex.com/llms-full.txt
- aid: routerplex:routerplex-models-api
  name: RouterPlex Models API
  description: The Models API from RouterPlex — 1 operation(s) for models.
  humanURL: https://docs.routerplex.com
  baseURL: https://api.routerplex.com/v1
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/routerplex-models-api-openapi.yml
  - type: Documentation
    url: https://docs.routerplex.com
  - type: APIReference
    url: https://docs.routerplex.com/chat-completions
  - type: GettingStarted
    url: https://docs.routerplex.com/quickstart
  - type: Authentication
    url: https://docs.routerplex.com/authentication
  - type: ErrorCatalog
    url: https://docs.routerplex.com/errors
  - type: LLMSTxt
    url: https://routerplex.com/llms.txt
  - type: LLMSTxt
    url: https://docs.routerplex.com/llms-full.txt
- aid: routerplex:routerplex-responses-api
  name: RouterPlex Responses API
  description: The Responses API from RouterPlex — 1 operation(s) for responses.
  humanURL: https://docs.routerplex.com
  baseURL: https://api.routerplex.com/v1
  tags:
  - Responses
  properties:
  - type: OpenAPI
    url: openapi/routerplex-responses-api-openapi.yml
  - type: Documentation
    url: https://docs.routerplex.com
  - type: APIReference
    url: https://docs.routerplex.com/chat-completions
  - type: GettingStarted
    url: https://docs.routerplex.com/quickstart
  - type: Authentication
    url: https://docs.routerplex.com/authentication
  - type: ErrorCatalog
    url: https://docs.routerplex.com/errors
  - type: LLMSTxt
    url: https://routerplex.com/llms.txt
  - type: LLMSTxt
    url: https://docs.routerplex.com/llms-full.txt
- aid: routerplex:routerplex-chat-completions-api
  name: RouterPlex Chat Completions API
  description: The Chat Completions API from RouterPlex — 1 operation(s) for chat completions.
  humanURL: https://docs.routerplex.com
  baseURL: https://api.routerplex.com/v1
  tags:
  - Chat Completions
  properties:
  - type: OpenAPI
    url: openapi/routerplex-chat-completions-api-openapi.yml
  - type: Documentation
    url: https://docs.routerplex.com
  - type: APIReference
    url: https://docs.routerplex.com/chat-completions
  - type: GettingStarted
    url: https://docs.routerplex.com/quickstart
  - type: Authentication
    url: https://docs.routerplex.com/authentication
  - type: ErrorCatalog
    url: https://docs.routerplex.com/errors
  - type: LLMSTxt
    url: https://routerplex.com/llms.txt
  - type: LLMSTxt
    url: https://docs.routerplex.com/llms-full.txt
maintainers:
- FN: RouterPlex
  email: support@routerplex.com
  url: https://routerplex.com
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 95
  at: '2026-07-26T00:46:39.460Z'
common:
- type: CapabilityMap
  url: capabilities/routerplex-capability-edges.yml
  name: RouterPlex Business Capability Map
- type: Overlay
  url: overlays/routerplex-inference-overlay.yaml
- type: AgenticAccess
  url: agentic-access/routerplex-agentic-access.yml
- type: DomainSecurity
  url: security/routerplex-domain-security.yml
- type: Authentication
  url: authentication/routerplex-authentication.yml
- type: Website
  url: https://routerplex.com
- type: DeveloperPortal
  url: https://docs.routerplex.com
- type: Documentation
  url: https://docs.routerplex.com
- type: APIReference
  url: https://docs.routerplex.com/chat-completions
- type: GettingStarted
  url: https://docs.routerplex.com/quickstart
- type: Support
  name: Email support
  url: mailto:support@routerplex.com
- type: Support
  name: Telegram
  url: https://t.me/RouterPlex
- type: Blog
  url: https://routerplex.com/blog
- type: BlogRSS
  url: https://routerplex.com/rss.xml
- type: GitHubOrganization
  url: https://github.com/RouterPlex
- type: Pricing
  url: https://routerplex.com/pricing
- type: SignUp
  url: https://routerplex.com/sign-up
- type: Login
  url: https://routerplex.com/sign-in
- type: TermsOfService
  url: https://routerplex.com/terms
- type: PrivacyPolicy
  url: https://routerplex.com/privacy
- type: MCPServer
  name: RouterPlex Public Catalog
  url: mcp/routerplex-mcp.yml
- type: ToolCrosswalk
  url: mcp/routerplex-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/routerplex-llms.txt
- type: WellKnown
  url: well-known/routerplex-well-known.yml
- type: APICatalog
  name: RFC 9727 API catalog
  url: https://routerplex.com/.well-known/api-catalog
- type: ContentSignal
  name: robots.txt Content-Signal (ai-train=no, search=yes, ai-input=yes)
  url: https://routerplex.com/robots.txt
- type: Conformance
  url: conformance/routerplex-conformance.yml
- type: ErrorCatalog
  url: errors/routerplex-problem-types.yml
- type: Lifecycle
  url: lifecycle/routerplex-lifecycle.yml
- type: Conventions
  url: conventions/routerplex-conventions.yml
- type: RateLimits
  url: rate-limits/routerplex-rate-limits.yml
- type: Plans
  url: plans/routerplex-plans.yml
- type: Packages
  url: packages/routerplex-packages.yml
- type: Playground
  url: https://routerplex.com/dashboard/playground
- type: Sandbox
  url: sandbox/routerplex-sandbox.yml
- type: Benchmarks
  name: Machine-readable model benchmarks
  url: https://routerplex.com/benchmarks.md
- type: Pricing
  name: Machine-readable pricing
  url: https://routerplex.com/pricing.md
x-enrichment:
  date: '2026-08-09'
  status: enriched
  artifacts_added: 24
  pass: local-v1

RouterPlex API — frequently asked questions

Does RouterPlex have an API?

Yes. APIs.io lists 5 APIs from RouterPlex, including RouterPlex Images API, RouterPlex Messages API and RouterPlex Models API, and 2 more.

Is there an OpenAPI specification for the RouterPlex API?

Yes. APIs.io indexes 5 OpenAPI specifications for RouterPlex, each linked for download from this page.

How do I authenticate with the RouterPlex API?

RouterPlex uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Routerplex Authentication.

How much does the RouterPlex API cost?

RouterPlex publishes its prices; its Pay as you go plan is $0 per token as of 2026-10-28. APIs.io lists 4 pricing plans for RouterPlex, with each plan's price, limits and inclusions under Pricing on this page.

Does RouterPlex have an MCP server?

Yes. APIs.io lists 1 MCP server for RouterPlex: Read-only model discovery, pricing, and official RouterPlex API references.

Is the RouterPlex API ready for AI agents?

RouterPlex has a Kin Score of 48.1 out of 100 (developing) and an Agent Readiness score of 39.8 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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