A Validated Developer Tools Tool for Your AI

Complete guide to the Anthropic API — authentication, models, tool use and rate limits.

SETUP TIME

0 min

SKILL LEVEL

beginner

COST TO RUN

Free to read. Using the API itself costs based on tokens: roughly $0.003 per 1M input tokens for Haiku, $0.03 per 1M for Sonnet. First $5 of usage each month is free.

SAFETY SCORE

99/100

A DAY WITH THIS

You're building a chatbot and need to choose between Claude 3.5 Sonnet and Opus. You pull up the API guide, scan the model comparison table, see that Sonnet costs 1/10th the price with 200k context, and decide to start there. Twenty minutes later your first request works.

TRY THIS FIRST

Show me the latest Claude models
████████████████████████████████
████████████████████

STACKS WELL WITH

████████ · ████████ · ████████

SUBSCRIBERS ONLY

The exact prompts, config and setup instructions are available to Followloop subscribers.

START FOR $5 →

Pay $5 · Cancel anytime

ACCESS THIS TOOL

Get access to this tool and 700+ other safety-validated resources through Followloop.

START FOR $5 →

Pay $5 · Cancel anytime

FOR BEGINNERS

The guide assumes basic API knowledge (HTTP, JSON) but is written for anyone new to Claude — no coding required to understand it.

SAFETY STATUS

Safety score99/100

✓URL reputation checked

✓Prompt injection screened

✓Malicious code scan

✓Re-scanned every 6h

MORE IN DEVELOPER TOOLS

Every tool in Followloop is screened like this one.

Claude will eat your time. Followloop gives it back, with interest.

START FOR $5 →