OpenRouter

Unified API for 300+ LLMs — one interface, all major models

OpenRouter provides a single API to access 300+ models from 60+ providers including OpenAI, Anthropic, Google, and Meta. OpenAI SDK compatible. Features automatic fallback for higher availability, edge routing for minimal latency, custom data policies, and per-model pricing. 70T+ monthly tokens processed across 5M+ global users. Used by 250K+ apps including Replit and Kilo Code.

Best for agent capabilities

Web search Web extraction Workflow automation

Useful in agent tasks

Research the web

Find, inspect, extract, and synthesize reliable information from the open web.

Manage memory and knowledge

Keep useful context available across long-running tasks and sessions.

Communicate with users

Send timely, personalized messages and handle conversations across channels.

Automate business workflows

Connect services and coordinate durable multi-step operational work.

Overview

Websiteopenrouter.ai

Authapi key

PricingFree tier available · Pay per token

SDKstypescript, python

OpenAPIYes

MCP SupportNo

When to use OpenRouter

OpenRouter is listed for Data, Search workflows. OpenRouter provides a single API to access 300+ models from 60+ providers including OpenAI, Anthropic, Google, and Meta. OpenAI SDK compatible. Features automatic fallback for higher availability, edge routing for minimal latency, custom data policies, and per-model pricing. 70T+ monthly tokens processed across 5M+ global users. Used by 250K+ apps including Replit and Kilo Code. Consider it when an agent needs this capability through a documented service boundary instead of custom infrastructure maintained inside the application.

In 4agent's task model, the product maps to web search, web extraction, workflow automation. That makes it a candidate for workflows that research the web, manage memory and knowledge, communicate with users, automate business workflows.

Integration checklist

Access: confirm the api key authentication flow, credential scope, rotation process, and whether calls can be attributed to a user or service identity.
Client support: official or documented clients are listed for typescript, python.
Automation: OpenAPI is listed as available, MCP is not currently recorded, and CLI support is not currently recorded. Confirm each requirement in the provider's current documentation.
Operations: test rate limits, timeouts, retry safety, error payloads, logs, data retention, and the current free-tier and paid pricing model with production-like volume.

Sources and verification

Use these primary sources to verify current behavior before making an implementation or purchasing decision. Product capabilities, limits, and prices can change after a 4agent listing is reviewed.