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Anthropic Claude

AI & Machine Learning · Large Language Models

Anthropic offers free API credits for Claude models, known for safety and long context windows.

No Credit CardLong Context
Duration

Initial credits (no expiry announced)

Credit Card

Not Required

Rating

4.6/5 (215)

Geo Restrictions

None

Rate Limits

Requests per Minute5 RPM
Requests per Day1,000 RPD
Tokens per Minute20,000 TPM

Free Tier Details

$5 in free credits

✅ Included

  • Claude 3.5 Sonnet
  • Claude 3 Haiku
  • Messages API
  • Vision capabilities

❌ Not Included

  • —Claude 3 Opus
  • —Batch API priority

How to Get Your Free API Key

Go to console.anthropic.com and sign up.

https://console.anthropic.com

Navigate to API Keys section and create a new key.

https://console.anthropic.com/settings/keys

Save the key as ANTHROPIC_API_KEY environment variable.

How to Test Your Key

Send a simple message to Claude.

curl https://api.anthropic.com/v1/messages \
  -H "x-api-key: YOUR_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-3-5-sonnet-20241022","max_tokens":256,"messages":[{"role":"user","content":"Hello!"}]}'

Expected: JSON response with Claude's reply.

Hidden Limitations

  • Free credits are limited and don't renew
  • Rate limits are strict on free tier
  • Some features require paid plan

Official Links

DocumentationPricingDashboardWebsite

Last verified: 2026-02-13 · Last updated: 2026-02-13