RouterPlexOne API key for multiple AI models across providers
About RouterPlex
RouterPlex is a hosted AI gateway for calling multiple third-party models through one account and API key. It offers OpenAI- and Anthropic-compatible endpoints, supports a shared base URL, and lets developers switch models by changing the model string. The site describes access to 37 chat and image models from 14 providers, including Claude, GPT, Gemini, DeepSeek, and others. Billing is prepaid and usage-based: users can top up from $5, pay per token at the vendor's published list price, and set hard per-key budgets, allowlists, and rate limits so balances do not overdraft. RouterPlex also offers optional monthly plans with bonus credits and higher rate limits.