Anthropic API Free Credits: Claude API Limits & Setup

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Anthropic API provides API access to Claude model series. $5 free credits on signup, supports Claude Opus 4, Sonnet 4.5, and more. It is best for teams that need high-quality writing, coding, long-context, and safety behavior. Before production, check billing, model availability, Messages API format, rate limits, and Mainland China fallback access.

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Free tier API pricing No credit card China access Open-source alt Provider alternatives Alternatives

🎁 Free Tier

Daily Limit: N/A

ModelContextLimitNotes
Claude Opus 4 200k Paid only Strongest model, paid only

🔑 Free API

Free Credits: $5

Rate Limit: 5 RPM

$5 free credits on signup

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AI Opportunity Library What you can build with these free AI tools, how to ship an MVP, and how to monetize. Explore ideas → Free AI API directory Compare DeepSeek, Qwen, Grok, GLM, Hunyuan, Groq, and Cloudflare Workers AI free credits. Open hub → API relay and OpenAI-compatible endpoints Relay options, free models, China-access notes, and SDK-compatible setups. View guide → FreeLLMAPI GitHub guide Open-source free LLM API aggregation, alternatives, and setup notes. Read guide →

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Anthropic API Free API Credits Anthropic API API has a recorded free trial: $5; rate limit: 5 RPM. →

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