Claude API Free Tier in 2026: Does Anthropic Offer One, and How to Get Free Claude API Credits

Short answer: There is no free tier for the Claude API. Anthropic's free plan is for the claude.ai chat app; the API is prepaid per token from the first request. In 2026 the ways to call Claude models without paying are: Anthropic occasionally gives new Console accounts a small trial credit (not guaranteed), AWS and Google give new-account cloud credits that can be spent on Claude through Bedrock or Vertex, and Crazyrouter gives new accounts free credits that work on every Claude model through an Anthropic-compatible API.

Last updated: September 30, 2026.

What "free" means for each option#

Why Anthropic does not have a free API tier#

The API is metered per token and the models are expensive to serve, so Anthropic sells prepaid credits with spend limits that grow through usage tiers. The rate limits you see on the Console (requests and tokens per minute) are tied to how much you have deposited, which is the opposite of a free tier. Details of how the credits, tiers and invoices work are in the Anthropic billing guide.

The cheapest way to actually run Claude after the free credits#

Once you are paying, the price per 1M tokens is what matters. Anthropic's list prices are Opus 5 $5 /$25, Sonnet 5 $2 /$10, Haiku 4.5 $1 /$5; through Crazyrouter the same models are $3.25 /$16.25, $1.30 /$6.50 and $0.65 /$3.25. The full table for every model, with Azure, Bedrock and Vertex prices, is in Claude API pricing 2026; per-model pages such as Claude Sonnet 5 pricing include a monthly cost calculator.

Two habits stretch any budget further: use prompt caching for repeated system prompts (cached input is 10% of the input price) and route routine calls to Haiku 4.5.

How to get the free Crazyrouter credits and call Claude#

1. Create an account at crazyrouter.com/register — the free credits are added automatically.
2. Create an API key in the console.
3. Point your client at the Anthropic-compatible endpoint:

curl https://api.crazyrouter.com/v1/messages \
  -H "x-api-key: $CRAZYROUTER_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{"model":"claude-sonnet-5","max_tokens":256,"messages":[{"role":"user","content":"Say hello"}]}'

The official Anthropic SDKs work by setting ANTHROPIC_BASE_URL=https://api.crazyrouter.com; Claude Code and Cursor need only the base URL and key — see the Claude Code integration guide.

Frequently asked questions#

Is the Claude API free with a Claude Pro or Max subscription? No. Pro and Max cover the claude.ai app and Claude Code usage; API calls are billed separately from prepaid Console credits.

Does Anthropic give $5 free credits? Anthropic has at times added a small trial credit to new Console accounts, but it is not a published, guaranteed offer. Do not plan around it.

Is there a Claude API free trial for students or startups? Anthropic runs startup and research programmes with credits by application, not a self-serve free tier. Cloud credits (AWS Activate, Google for Startups) can be spent on Claude through Bedrock or Vertex.

What are the rate limits on the free credits? On Crazyrouter the free credits are subject to the normal per-account rate limits; on Anthropic, new accounts start in the lowest usage tier regardless of any trial credit.

→ Get free credits · Claude API pricing for every model