TheRouter.aiTheRouter.ai

TheRouter is an AI API gateway for one-person companies and solo founders. It provides a single API key to access over 100 AI models from OpenAI, Anthropic, Google, DeepSeek, and more. Key features include automatic failover across providers, smart cost-optimized routing, real-time usage tracking, budget alerts, and OpenAI SDK compatibility requiring only a one-line code change to migrate. TheRouter runs dual-region infrastructure on AWS (US) and Aliyun (China) for global coverage.

For One-Person Companies

One Person. One API. Every Model.

Stop managing 5 AI provider accounts. TheRouter gives solo founders enterprise-grade AI infrastructure — unified billing, automatic failover, and smart routing across all models.

Start FreeRead the Docs

Migrate from OpenAI — change one line:

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.therouter.ai/v1",
  apiKey: "your-router-key",
});

// GPT-4o, Claude, Gemini, DeepSeek... switch in one line
const res = await client.chat.completions.create({
  model: "anthropic/claude-sonnet-4.6",
  messages: [{ role: "user", content: "Hello!" }],
});
125+
Models
14
Providers
<50ms
Overhead
$0
To Start

Sound Familiar?

The daily reality of solo founders managing AI

Juggling 5 API keys and billing dashboards
1 key, 1 dashboard
$80/month on ChatGPT Plus + Claude Pro + Gemini
Pay only for what you use
Rewriting adapters when a new model drops
Change one string, done
OpenAI goes down = your product goes down
Auto-failover, zero downtime
Surprise $500 bill at month end
Real-time spend tracking
2 hours/month reconciling invoices
Unified usage analytics

Average OPC saves 15+ hours/month and 30% on AI costs

Unified API

One endpoint, one key, every model. OpenAI SDK compatible — change the base URL and you're done.

  • 100+ models from OpenAI, Anthropic, Google, DeepSeek, and more
  • Works with Cursor, Claude Code, and any OpenAI-compatible tool
  • Text, image, audio, and PDF — all through one API
Browse all models →

Smart Routing

Automatic failover and health-aware routing keep your product online when providers go down.

  • Priority-based fallback across providers
  • Cost-optimized routing for the same model
  • Provider health checks in real time
How routing works →

Cost Control

See exactly where every token goes. Set budget alerts before you get a surprise bill.

  • Real-time usage and cost dashboard
  • Per-model and per-key spend tracking
  • Budget alerts at thresholds you set
View pricing →

Global Reach

Dual-region infrastructure for worldwide coverage. China direct connect, global low latency.

  • AWS (US) + Aliyun (China) dual clusters
  • Chinese models (Qwen, DeepSeek) accessible globally
  • Data stays with the provider — we don't store content
Trust & privacy →

Built for Builders Like You

Real scenarios from solo founders using TheRouter

Solo dev shipping an AI writing tool

Let users pick their model

Pain

Users want to choose GPT, Claude, or Gemini — but integrating each provider means weeks of adapter code.

Solution

TheRouter unifies them behind one API. Users pick a model on the frontend; your backend stays one line.

Result

Integration time: 2 weeks to 1 day. Maintenance: zero.

// User picks a model — your backend doesn't care which
const response = await client.chat.completions.create({
  model: userSelectedModel, // "openai/gpt-4o" or "anthropic/claude-sonnet-4.6"
  messages: [{ role: "user", content: prompt }],
});

Common Questions

Everything solo founders ask before switching to TheRouter.

Start building in 3 lines of code

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.therouter.ai/v1",
  apiKey: "sk-your-key",
});

const response = await client.chat.completions.create({
  model: "anthropic/claude-sonnet-4.6",
  messages: [{ role: "user", content: "Hello!" }],
});
Get API KeyOpenAI-Compatible Quickstart