LinkexLinkex Docs
Getting Started

What is Linkex?

A unified AI API gateway with agent-native stablecoin settlement.

Linkex solves two problems at once:

  1. Model access. One endpoint, one key, 40+ providers. Your code speaks the OpenAI API (or Anthropic / Gemini formats), and Linkex routes to the upstream provider, handles failover, rate limiting, and usage analytics. Model names follow the upstream convention — gpt-4o, claude-sonnet-4-5, gemini-2.5-pro.

  2. Payment. Traditional API platforms assume a human with a credit card. Linkex also supports stablecoin funding — pay from any crypto wallet in the console, or let an autonomous agent top up its own account over the x402 protocol. Settlement rails: BNB Smart Chain (USDT/USDC/$U), Base (USDC), Solana (USDC).

Who is it for?

  • Developers without an international credit card — pay for GPT/Claude/Gemini with stablecoins or regional e-wallets (Alipay+, GCash, DANA…).
  • Agent builders — issue each agent a scoped credential with spend caps; the agent funds itself and you revoke it at any time.
  • Teams shipping abroad — a single gateway with per-token billing, usage logs, and no subscription lock-in.

How billing works

You buy credits denominated in USD; every API call deducts credits based on the model's per-token price. There are no subscriptions and no expiry on the default plan. See Core concepts for how billing works and the pricing page for live per-model prices.

Next steps

Quickstart

First API call in 5 minutes.

Core concepts

Credits, API keys, agent credentials, x402.

Welcome to Linkex Docs

One OpenAI-compatible endpoint for 40+ AI models, with agent-native stablecoin payments via the x402 protocol.

Quickstart

Register, create an API key, and make your first call in about 5 minutes.

On this page

Who is it for?How billing worksNext steps