Claude API gateways

Flow7's prepaid multi-model API gateway provides Responses, Chat Completions, and Anthropic Messages compatibility, request spend limits, locked price versions, and completed-response charge receipts. Public model-family labels do not establish verified upstream supplier or model-weight provenance.

A multi-model routing platform for developers; switch models by changing the base_url with the OpenAI SDK, ideal for teams comparing the quality and price of many models at once.

Vercel's official AI Gateway, emphasizing unified model calls, failover, caching, and observability; ideal for apps already deployed on Vercel.

A tool and API aggregation platform covering text, image, video, and audio AI capabilities; ideal for individuals and small teams wanting one-stop access to many models.

A common API relay service among Chinese users; the site highlights aggregation of OpenAI, Claude, and Gemini plus multiple top-up methods.

A multi-model API aggregation platform; the docs list an OpenAI-compatible interface, model list, and image/audio/video APIs, ideal for overseas developers wanting unified access.

An enterprise-oriented AI Gateway focused on a unified interface, routing, fallback, observability, and logging; ideal for teams needing to govern multi-model calls.

An open-source LLM gateway/proxy layer that unifies many providers into an OpenAI-style interface; ideal for teams that want to self-host a relay and control their own keys and logs.

An open-source project for managing and distributing OpenAI-style interfaces; commonly used to self-host an API relay with channel management, quotas, and token grouping.

An open-source multi-channel gateway evolved from the One API ecosystem, with more model channels, billing features, and operational config; ideal for webmasters or teams self-hosting a unified API entry point. The repository has moved from Calcium-Ion to the QuantumNous organization, with the old address redirecting.

A relay service aimed at individual developers and AI coding-tool users; public info highlights low multipliers, small-amount usage, and coding scenarios like Codex.

A relay service for API-compatible calls; public info emphasizes cost-effectiveness, stable availability, and account top-up features.

A relay service for GPT and Claude calls; public info emphasizes transparent pricing and response speed.

Anthropic's official Claude API. Since late 2025 the developer brand has been unified under Claude: the console moved to platform.claude.com and the docs to docs.claude.com, with console.anthropic.com now redirecting. Ideal for developers needing Claude's long context, tool calling, and the native interface.

A multi-model API aggregation service compiled from public info; it shows many integrated models and support for WeChat, Alipay, and crypto top-up.

A multi-model aggregation API service compiled from public info; it shows moderate pricing, acceptable stability, and WeChat/Alipay top-up.

A third-party technical provider for Claude calls, now renamed Apito, with claudeapi.com redirecting to apito.ai. The operator says it forwards requests through two official channels — Anthropic's first-party API and AWS Bedrock — and states prominently that it has no affiliation with, authorization from, or partnership with Anthropic.

A common China-based AI API relay; public info shows support for OpenAI, Claude, Gemini, and RMB and USDT top-up.

A one-stop multi-model AI API relay; public info shows support for OpenAI, Claude, Gemini, Midjourney, Suno, and more.

An AI API relay aimed at enterprises and research institutions; the site has moved to closeai-asia.com (referer.shadowai.xyz redirects there). The operator states it is run by an overseas entity and offers self-service Invoice and Receipt downloads for expense claims, and lists enterprise and university customers on its homepage — all vendor claims that need independent verification before procurement.

A China-based AI API relay; public info shows a focus on Claude and GPT relay, plus Gemini support.

An OpenAI/Claude relay for individual developers; public info shows low prices and small-amount top-up friendliness.

A relay service for AI coding tools. The site has moved to 3366.ai (0011.ai redirects there) while keeping the brand name, and now leads with two first-party clients: 0011 Code, a visual tool with built-in Claude Code and Codex engines and no CLI install, and 0011 Switch, a configuration switcher.

A unified LLM API gateway for China-based developers; public info shows support for Claude, GPT, Gemini, DeepSeek, and adaptation for tools like Cursor, Claude Code, and Cline.

A China-based multi-model relay; public info shows support for ChatGPT, Claude, Gemini, DeepSeek, and emphasizes China direct connection.