OpenRouter

OpenRouter is an API platform that provides unified access to multiple AI language models through a single interface. OpenRouter acts as a "router" or gateway that lets developers and applications access dozens of different AI models from various providers through one standardized API, rather than having to integrate with each provider separately.

OpenRouter publishes 7 API contracts indexed on the APIs.io network, including Completions API, Credits API, Generation API, and 4 more. Tagged areas include Artificial Intelligence, Gateways, LLM, and Router.

The OpenRouter catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

OpenRouter’s developer surface includes authentication, getting-started guide, FAQ, pricing, developer portal, documentation, support, and 40 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

47.2/100 developing ▬ flat Agent 48/100 agent ready Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers 16 Features

Artificial Intelligence Gateways LLM Router

What this lets a business do 1

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

Developer Platform & API Ecosystem Management

BC-4270

Keys

POST /keys

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 47.2/100 · developing

Contract Quality 11.4 / 19

Developer Ergonomics 7.3 / 15

Access Clarity 7.1 / 15

Operational Transparency 2.8 / 10

Contract Governance 0.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 4.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 48/100 · 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 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

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/.

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 github.com/api-evangelist/openrouter: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
AI Model Routing	coverage	47.7	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

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 OpenAI Interface reaches extended

declared — publishes a spec that declares them

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

APIs 7

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

OpenRouter Completions API

Legacy completions endpoint.

OpenRouter Credits API

Account credit balance and usage.

OpenRouter Generation API

Query stats and usage for completed generations.

OpenRouter Keys API

Provisioning and management of API keys.

OpenRouter Models API

Discover available models and their endpoints.

OpenRouter Providers API

List supported providers.

OpenRouter Chat Completions API

Chat completion endpoints (OpenAI-compatible).

Scroll for all 7

Postman Collections 7

Ready-to-run Postman collections for exercising this provider's APIs.

OpenRouter Chat API

POSTMAN

OpenRouter Chat Completions API

POSTMAN

OpenRouter Chat Credits API

POSTMAN

OpenRouter Chat Generation API

POSTMAN

OpenRouter Chat Keys API

POSTMAN

OpenRouter Chat Models API

POSTMAN

OpenRouter Chat Providers API

POSTMAN

Scroll for all 7

Open Collections 9

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

API Collection

OPEN COLLECTION

OpenRouter Chat API

OPEN COLLECTION

OpenRouter Chat Completions API

OPEN COLLECTION

OpenRouter Chat Credits API

OPEN COLLECTION

OpenRouter Chat Generation API

OPEN COLLECTION

OpenRouter Chat Keys API

OPEN COLLECTION

OpenRouter Chat Models API

OPEN COLLECTION

OpenRouter Chat Providers API

OPEN COLLECTION

OpenRouter API

OPEN COLLECTION

Scroll for all 9

MCP Servers 1

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

OpenRouter MCP Server

Remote MCP server at mcp.openrouter.ai over HTTP.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Openrouter Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Openrouter Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Openrouter Finops

FINOPS

Features 16

Notable capabilities this provider offers.

Free: 25+ models, 50 req/day cap

Pay-As-You-Go: 300+ models, 0% provider markup

5.5% platform fee on credit purchases

Enterprise: volume discounts, custom platform fee

Failed/fallback attempts NOT billed

OpenAI-compatible Chat Completions API

300+ models from OpenAI, Anthropic, Google, Mistral, Meta, etc.

Automatic fallback routing on errors

Bring Your Own Key (BYOK) for select providers

Streaming responses

Tool use / function calling (model-dependent)

Vision (model-dependent)

Per-model upstream rate limit passthrough

Bearer token auth

Provider transparency (see live latency/uptime/throughput)

Credits + Stripe payments + crypto

Scroll for all 16

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Openrouter Context

21 classes · 1 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

OpenRouter — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

OpenRouter Chat Message

5 properties

JSON SCHEMA

ChatCompletionRequest

12 properties

JSON SCHEMA

ChatCompletionResponse

6 properties

JSON SCHEMA

ChatMessage

4 properties

JSON SCHEMA

CompletionRequest

5 properties

JSON SCHEMA

ModelList

1 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Openrouter Structure

0 properties

JSON STRUCTURE

Security Posture 3

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

Openrouter Authentication

http · 1 scheme

SECURITY

Openrouter Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Openrouter Trust Center

SOC 2

SECURITY

Agentic Access 1

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

Openrouter Agentic Access

12 operations · 5 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Portal

Portal

Documentation 15

Reference material describing how the API behaves

Documentation

Documentation

OpenAPI

OpenAPI

Documentation

Documentation

Documentation

Documentation

Documentation

Documentation

Documentation

Documentation

Documentation

Documentation

Documentation

Scroll for all 15

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

ErrorCodes

ErrorCodes

Build 6

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubRepository

GitHubRepository

SDKs

SDKs

Access & Security 5

Authentication, authorization, and security posture

TrustCenter

DomainSecurity

Authentication

Authentication

APIKeys

Operate 5

Status, limits, changes, and where to get help

StatusPage

FAQ

RateLimits

Support

Discord

Commercial 6

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

PrivacyPolicy

TermsOfService

Pricing

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Models

Models

Source (apis.yml)

aid: openrouter
url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/apis.yml
x-docs-platform: fern
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
apis:
- aid: openrouter:openrouter-completions-api
  name: OpenRouter Completions API
  description: Legacy completions endpoint.
  humanURL: https://openrouter.ai/
  baseURL: https://openrouter.ai/api/v1
  tags:
  - Completions
  properties:
  - type: OpenAPI
    url: openapi/openrouter-completions-api-openapi.yml
  - type: Documentation
    url: https://openrouter.ai/
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/overview
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-schema/openrouter-chat-message-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-ld/openrouter-context.jsonld
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/parameters
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/streaming
  - type: Documentation
    url: https://openrouter.ai/docs/api/api-reference/models/get-models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/provisioning-api-keys
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/management-api-keys
- aid: openrouter:openrouter-credits-api
  name: OpenRouter Credits API
  description: Account credit balance and usage.
  humanURL: https://openrouter.ai/
  baseURL: https://openrouter.ai/api/v1
  tags:
  - Credit
  tags_raw:
  - Credits
  properties:
  - type: OpenAPI
    url: openapi/openrouter-credits-api-openapi.yml
  - type: Documentation
    url: https://openrouter.ai/
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/overview
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-schema/openrouter-chat-message-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-ld/openrouter-context.jsonld
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/parameters
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/streaming
  - type: Documentation
    url: https://openrouter.ai/docs/api/api-reference/models/get-models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/provisioning-api-keys
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/management-api-keys
- aid: openrouter:openrouter-generation-api
  name: OpenRouter Generation API
  description: Query stats and usage for completed generations.
  humanURL: https://openrouter.ai/
  baseURL: https://openrouter.ai/api/v1
  tags:
  - Generation
  properties:
  - type: OpenAPI
    url: openapi/openrouter-generation-api-openapi.yml
  - type: Documentation
    url: https://openrouter.ai/
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/overview
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-schema/openrouter-chat-message-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-ld/openrouter-context.jsonld
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/parameters
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/streaming
  - type: Documentation
    url: https://openrouter.ai/docs/api/api-reference/models/get-models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/provisioning-api-keys
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/management-api-keys
- aid: openrouter:openrouter-keys-api
  name: OpenRouter Keys API
  description: Provisioning and management of API keys.
  humanURL: https://openrouter.ai/
  baseURL: https://openrouter.ai/api/v1
  tags:
  - Keys
  properties:
  - type: OpenAPI
    url: openapi/openrouter-keys-api-openapi.yml
  - type: Documentation
    url: https://openrouter.ai/
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/overview
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-schema/openrouter-chat-message-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-ld/openrouter-context.jsonld
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/parameters
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/streaming
  - type: Documentation
    url: https://openrouter.ai/docs/api/api-reference/models/get-models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/provisioning-api-keys
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/management-api-keys
- aid: openrouter:openrouter-models-api
  name: OpenRouter Models API
  description: Discover available models and their endpoints.
  humanURL: https://openrouter.ai/
  baseURL: https://openrouter.ai/api/v1
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/openrouter-models-api-openapi.yml
  - type: Documentation
    url: https://openrouter.ai/
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/overview
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-schema/openrouter-chat-message-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-ld/openrouter-context.jsonld
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/parameters
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/streaming
  - type: Documentation
    url: https://openrouter.ai/docs/api/api-reference/models/get-models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/provisioning-api-keys
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/management-api-keys
- aid: openrouter:openrouter-providers-api
  name: OpenRouter Providers API
  description: List supported providers.
  humanURL: https://openrouter.ai/
  baseURL: https://openrouter.ai/api/v1
  tags:
  - Providers
  properties:
  - type: OpenAPI
    url: openapi/openrouter-providers-api-openapi.yml
  - type: Documentation
    url: https://openrouter.ai/
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/overview
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-schema/openrouter-chat-message-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-ld/openrouter-context.jsonld
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/parameters
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/streaming
  - type: Documentation
    url: https://openrouter.ai/docs/api/api-reference/models/get-models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/provisioning-api-keys
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/management-api-keys
- aid: openrouter:openrouter-chat-completions-api
  name: OpenRouter Chat Completions API
  description: Chat completion endpoints (OpenAI-compatible).
  humanURL: https://openrouter.ai/
  baseURL: https://openrouter.ai/api/v1
  tags:
  - Chat Completions
  properties:
  - type: OpenAPI
    url: openapi/openrouter-chat-completions-api-openapi.yml
  - type: Documentation
    url: https://openrouter.ai/
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/overview
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-schema/openrouter-chat-message-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/openrouter/refs/heads/main/json-ld/openrouter-context.jsonld
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/parameters
  - type: Documentation
    url: https://openrouter.ai/docs/api/reference/streaming
  - type: Documentation
    url: https://openrouter.ai/docs/api/api-reference/models/get-models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/models
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/provisioning-api-keys
  - type: Documentation
    url: https://openrouter.ai/docs/guides/overview/auth/management-api-keys
name: OpenRouter
tags:
- Artificial Intelligence
- Gateways
- LLM
- Router
tags_raw:
- Artificial Intelligence
- Gateway
- Large Language Models
- Router
kind: contract
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - openrouterteam/python-sdk
    - openrouterteam/typescript-sdk
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/openrouter.png
access: 3rd-Party
common:
- type: CapabilityMap
  url: capabilities/openrouter-capability-edges.yml
  name: OpenRouter Business Capability Map
- type: Plans
  url: plans/openrouter-plans-pricing.yml
- type: FinOps
  url: finops/openrouter-finops.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/openrouter/overview
- type: AgenticAccess
  url: agentic-access/openrouter-agentic-access.yml
- type: TrustCenter
  url: security/openrouter-trust-center.yml
- type: DomainSecurity
  url: security/openrouter-domain-security.yml
- type: Authentication
  url: authentication/openrouter-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/openrouter
- url: https://openrouter.ai/
  name: OpenRouter
  type: Website
  description: 'null'
- url: https://openrouter.ai/models
  name: Models
  type: Models
  description: 'null'
- url: https://status.openrouter.ai/
  name: OpenRouter Status
  type: StatusPage
  description: 'null'
- url: https://openrouter.ai/docs/quickstart
  name: Getting Started
  type: GettingStarted
  description: 'null'
- url: https://openrouter.ai/docs/faq
  name: OpenRouter FAQ
  type: FAQ
  description: 'null'
- url: https://openrouter.ai/models?fmt=table
  name: Pricing
  type: Pricing
  description: 'null'
- url: https://openrouter.ai/privacy
  name: Privacy Policy
  type: PrivacyPolicy
  description: 'null'
- url: https://openrouter.ai/terms
  name: Terms Of Service
  type: TermsOfService
  description: 'null'
- url: https://openrouter.ai/docs
  name: Documentation Portal
  type: Portal
  description: 'null'
- url: https://openrouter.ai/docs/api/reference/overview
  name: API Reference
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/api/reference/authentication
  name: Authentication
  type: Authentication
  description: 'null'
- url: https://openrouter.ai/docs/api/reference/limits
  name: Rate Limits
  type: RateLimits
  description: 'null'
- url: https://openrouter.ai/docs/api/reference/errors-and-debugging
  name: Errors and Debugging
  type: ErrorCodes
  description: 'null'
- url: https://openrouter.ai/docs/api/reference/streaming
  name: Streaming
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/openapi.json
  name: OpenAPI Specification (JSON)
  type: OpenAPI
  description: 'null'
- url: https://openrouter.ai/openapi.yaml
  name: OpenAPI Specification (YAML)
  type: OpenAPI
  description: 'null'
- url: https://openrouter.ai/pricing
  name: Platform Pricing
  type: Pricing
  description: 'null'
- url: https://openrouter.ai/support
  name: Support
  type: Support
  description: 'null'
- url: https://openrouter.ai/announcements
  name: Announcements and Blog
  type: Blog
  description: 'null'
- url: https://discord.com/invite/openrouter
  name: Discord Community
  type: Discord
  description: 'null'
- url: https://github.com/OpenRouterTeam
  name: GitHub Organization
  type: GitHubOrganization
  description: 'null'
- url: https://github.com/OpenRouterTeam/typescript-sdk
  name: TypeScript SDK
  type: GitHubRepository
  description: 'null'
- url: https://github.com/OpenRouterTeam/python-sdk
  name: Python SDK
  type: GitHubRepository
  description: 'null'
- url: https://openrouter.ai/docs/sdks/typescript/overview
  name: TypeScript SDK Documentation
  type: SDKs
  description: 'null'
- url: https://openrouter.ai/docs/sdks/python/overview
  name: Python SDK Documentation
  type: SDKs
  description: 'null'
- url: https://openrouter.ai/docs/guides/community/frameworks-and-integrations-overview
  name: Frameworks and Integrations
  type: Integrations
  description: 'null'
- url: https://openrouter.ai/docs/guides/community/openai-sdk
  name: OpenAI SDK Integration
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/routing/provider-selection
  name: Provider Routing
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/features/tool-calling
  name: Tool and Function Calling
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/features/structured-outputs
  name: Structured Outputs
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/features/model-routing
  name: Model Routing
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/features/guardrails
  name: Guardrails
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/features/zdr
  name: Zero Data Retention
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/features/plugins/web-search
  name: Web Search Plugin
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/overview/auth/byok
  name: Bring Your Own Key (BYOK)
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/docs/guides/guides/for-providers
  name: Provider Integration Guide
  type: Documentation
  description: 'null'
- url: https://openrouter.ai/settings/keys
  name: API Keys
  type: APIKeys
  description: 'null'
- url: https://openrouter.ai/docs/guides/overview/principles
  name: Principles
  type: Documentation
  description: 'null'
- type: Features
  data:
  - 'Free: 25+ models, 50 req/day cap'
  - 'Pay-As-You-Go: 300+ models, 0% provider markup'
  - 5.5% platform fee on credit purchases
  - 'Enterprise: volume discounts, custom platform fee'
  - Failed/fallback attempts NOT billed
  - OpenAI-compatible Chat Completions API
  - 300+ models from OpenAI, Anthropic, Google, Mistral, Meta, etc.
  - Automatic fallback routing on errors
  - Bring Your Own Key (BYOK) for select providers
  - Streaming responses
  - Tool use / function calling (model-dependent)
  - Vision (model-dependent)
  - Per-model upstream rate limit passthrough
  - Bearer token auth
  - Provider transparency (see live latency/uptime/throughput)
  - Credits + Stripe payments + crypto
  sources:
  - https://openrouter.ai/pricing
  updated: '2026-05-04'
- type: LlmsText
  url: https://openrouter.ai/llms.txt
created: '2025-08-19T00:00:00.000Z'
modified: '2026-05-19'
position: Consuming
segments:
- Gateways
description: OpenRouter is an API platform that provides unified access to multiple AI language models through a single interface.
  OpenRouter acts as a "router" or gateway that lets developers and applications access dozens of different AI models from
  various providers through one standardized API, rather than having to integrate with each provider separately.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.23'

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