yangmao.ai · Free API intent page

Claude (Anthropic) Free API Guide

Claude (Anthropic) does not have a confirmed free API in our tracker yet, with $0 and rate limit notes of N/A.

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Quick verdict

Free API: Not confirmed in the current snapshot
Rate limits: N/A
Best model starting point: Claude Sonnet 4.6
Mainland China access: proxy/relay likely needed

Provider fit matrix

Best fit Fast provider evaluation, prototypes, and fallback routing

Watch out Free credits and rate limits can change without warning

Production fallback Keep at least one compatible backup provider before shipping

Production readiness checklist

Quota gate No confirmed free API quota is recorded; verify Claude (Anthropic) docs before collecting keys.

No-card check Try the free path first, then confirm whether billing is required for API keys, higher RPM, or production endpoints.

Regional smoke test Run signup, dashboard, DNS, TLS, and first API call checks from mainland China before launch.

Source freshness Snapshot date: 2026-06-01; official quota and pricing can change without notice.

Python setup snapshot

Start with the smallest possible chat completion, then move the key to your server-side secret manager before production.

import anthropic

client = anthropic.Anthropic(api_key="your-anthropic-key")

message = client.messages.create(
    model="claude-sonnet-4-5-20250514",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello!"}],
)
print(message.content[0].text)

cURL smoke test

Use this to verify endpoint, auth header, model name, response shape, and quota before adding SDK abstractions.

curl https://api.provider.example/v1/chat/completions \
  -H "Authorization: Bearer $CLAUDE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "Claude Sonnet 4.6",
    "messages": [{"role": "user", "content": "Hello from yangmao.ai"}]
  }'

Free API and pricing notes

API requires payment, no free tier

Access and production risk

Relay or proxy may be needed

Requires proxy in China. API accessible via relay services. Registration needs non-China phone number.

Decision checklist

Check Claude (Anthropic) free credits and rate limits.

Compare same-category providers and Mainland China access needs.

Pick the provider with the clearest no-card/free API path for testing.

Credit-change alerts

Want to know when free credits, pricing, or availability changes? Subscribe first, then compare official providers, API gateways, and alternatives.

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Source snapshot

Data source: yangmao.ai provider YAML tracker plus provider docs reviewed by the daily crawler. Official dashboards can change quota and pricing without notice; verify before production.

yangmao.ai provider id: claude
Official source: https://claude.ai
Last updated: 2026-06-01
Free tier: Limited messages/day
API credits: $0
Rate limit: N/A
Access note: Requires proxy in China. API accessible via relay services. Registration needs non-China phone number.

FAQ

Does Claude (Anthropic) have a free API?

No confirmed free API is recorded in the current yangmao.ai snapshot; use the official docs as source of truth before signing up.

Is Claude (Anthropic) OpenAI-compatible?

This snapshot uses a provider-specific OpenAI SDK example. If your app requires one stable OpenAI-compatible endpoint, use an aggregator or relay after checking Claude (Anthropic) docs.

Can I use Claude (Anthropic) from mainland China?

Claude (Anthropic) may need a proxy or relay from mainland China. Test latency and signup before production.

What should I do when Claude (Anthropic) credits run out?

Compare the alternatives below, check /en/free-ai-api/, and shortlist official providers or API gateway options before production.