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Anthropic API cURL API Setup

Use cURL to smoke-test Anthropic API before wiring SDK code. Confirm the exact endpoint, model name, and quota in the provider dashboard.

Open official provider → Get one OpenAI-compatible key → Compare API gateway options →

Quick verdict

Free API: $5
Rate limits: 5 RPM
Best model starting point: Claude Opus 4
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 Start inside $5; log usage before adding retries or batch jobs.

No-card check Assume billing may be required unless the official dashboard says otherwise.

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

Source freshness Snapshot date: 2026-06-16; official quota and pricing can change without notice.

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_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "Claude Opus 4",
    "messages": [{"role": "user", "content": "Hello from yangmao.ai"}]
  }'

Free API and pricing notes

$5 free credits on signup

Access and production risk

Relay or proxy may be needed

Requires proxy. Stable API, moderate latency.

How to set it up

Create an API key and copy the provider endpoint from official docs.

Export the key into your shell session.

Send a minimal chat completion payload with cURL.

Check status code, JSON body, and rate-limit headers.

Move the tested endpoint into your app or fallback relay.

Anthropic API production validation table

Use this table before sending real users, scheduled agents, or paid traffic to Anthropic API. The goal is to validate source freshness, quota behavior, regional access, and fallback needs instead of trusting a stale free-credit claim.

Check Pass condition If it fails

Signup and billing state Key creation works and the account can spend the recorded $5. Compare Anthropic API alternatives or route through a gateway before inviting users.

First request from target region Proxy, relay, or non-mainland deployment path is documented before launch. Do not ship cron jobs or public demos until latency, DNS, TLS, and auth are repeatable.

Quota, retry, and error shape Rate-limit behavior matches the current 5 RPM note or official dashboard values. Cap retries, add request logging, and keep a second route for 429/5xx bursts.

Cost per accepted task Real prompts stay within your target token, query, image-credit, or compute budget. Use cheaper primary routes, caching, shorter prompts, or fallback only after validation failure.

额度变动提醒

想知道免费额度、价格或可用性变化？先订阅提醒，后续也可以对比官方平台、API 网关和同类替代方案。

订阅提醒 → 获取 OpenLLMAPI Key → 比较 API 网关 →

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-api
Official source: https://console.anthropic.com
Last updated: 2026-06-16
Free tier: N/A
API credits: $5
Rate limit: 5 RPM
Access note: Requires proxy. Stable API, moderate latency.

FAQ

Does Anthropic API have a free API?

Yes. Current yangmao.ai record: $5. Rate limit note: 5 RPM.

Is Anthropic API 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 Anthropic API docs.

Can I use Anthropic API from mainland China?

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

What should I do when Anthropic API credits run out?

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