yangmao.ai · Python setup money page

Anthropic API Python API Setup

Use this page when you need a working Python starting point for Anthropic API, then validate quota and model names in the official console before production.

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.

Python setup snapshot

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

from anthropic import Anthropic

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

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

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 or locate your provider API key in the official dashboard.

Install the provider SDK or requests dependency shown in the example.

Set the API key in an environment variable instead of hard-coding secrets.

Run a small Anthropic API chat completion with Claude Opus 4.

Watch free credits, RPM/TPM limits, response shape, and error messages before scaling.

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.

Credit-change alerts

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

Subscribe → Get an OpenLLMAPI key → Compare API gateways →

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.