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One API for 130+ AI models

OpenAI, Anthropic, Google, xAI, DeepSeek and more.

Stop juggling provider accounts, API keys and separate invoices. One key, one balance, one OpenAI-compatible format, across text, image, video and live web data.

  • No credit card required
  • Setup in 30 seconds
  • No subscription
Switching from another gateway?OpenRouterLiteLLMPortkeyHelicone
130+
AI models on one key
4
modalities: text, image, video, audio
1
balance, not one bill per provider
0
subscriptions or seat fees

Models from

OpenAIAnthropicGooglexAIMetaMistralDeepSeekAlibabaMoonshotByteDanceBlack Forest LabsElevenLabsKuaishouMiniMaxIdeogramRecraftStability AI

See every model and its live price →

Context for AI

Your agents can read the web. Not just models.

Clean, LLM-ready output on the same key and the same balance as every model. Failed requests are not billed.

No other model gateway gives you this on the same key.

Drop-in compatible. Zero learning curve.

Already using the OpenAI SDK? Change one line, your base URL. Works with any language or framework.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.apexapi.dev/v1",
    api_key="<YOUR_APEXAPI_KEY>",
)

response = client.chat.completions.create(
    model="anthropic/claude-opus-5",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

Using a coding agent? Cursor, Cline, Codex CLI, Copilot and 8 more guides.

Reliability

When a provider goes down, your app does not

A single provider outage is the most common way an AI feature breaks. Models that run on more than one rail fail over inside the same request, with no code change on your side.

We route through direct provider APIs plus compliant infrastructure rails, so models have somewhere to fall back to:

  • Anthropic directAnthropic on Google Vertex
  • Google AI StudioGoogle Vertex
  • Mistral directMistral on Google Vertex
  • Alibaba directAlibaba on Google Vertex

The published price of a model is the price of its most expensive rail, so a failover never costs you more than you were quoted.

Everything you need to integrate AI

A single API key unlocks every major AI model. No more managing multiple provider accounts.

Unified API

One OpenAI-compatible format for every model. Switch providers by changing a string, not your code.

Real dollars, not credits

$1 buys $1 of credits. No bonus tiers, no expiring balance, no invented currency to convert in your head.

Streaming everywhere

Full Server-Sent Events on every chat model, so tokens reach your users as they are generated.

Cost on every request

The exact price of a call comes back on the response and lands in your dashboard logs, streaming included.

Guardrails built in

PII detection, prompt-injection blocking, per-key rate limits and model allowlists, on by default.

Agent-native

A hosted MCP server, agent self-registration and autonomous USDC funding over x402. An agent can get its own key and top up its own balance.

Built for teams

When AI spend stops being a side project, you need control over who spends what.

  • Organizations and roles
  • Shared credit balance
  • Per-member spend caps
  • Per-member model access
  • Per-key limits and allowlists
  • Team-wide usage and request logs

Start building with AI today

Create an account, add credits, and make your first API call in under 2 minutes.

No credit card required. No subscription. Credits never expire.