Anthropic API / Claude Platform

Frontier model provider API

PaidModel APIs, routers & observabilityplatform.claude.com

What it is

Anthropic's first-party API for the Claude models, plus the Agent SDK, tool use, MCP connectors, files and batch endpoints. This is a model provider, not a gateway — you get the models Anthropic trains and nothing else, with prompt caching and batch as the main cost levers.

Why it earns a slot

Best-in-class coding and agentic tool use, and the only place to get Claude with full feature support. Prompt caching at 0.1x read cost makes long system prompts and big codebase context genuinely affordable.

Know before you commit

Output tokens cost 5x input, and extended thinking bills as output — a reasoning-heavy agent loop can 10x your bill versus the naive estimate. Tier-based rate limits throttle new accounts hard.

Getting started

npm i @anthropic-ai/sdk (or pip install anthropic)

Field notes

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Field check

Unverified

Pricing snapshot

Per token. Opus 5 $5/$25 per M in/out; Sonnet 5 $2/$10; Haiku 4.5 $1/$5; Fable 5 and Mythos 5 $10/$50. Batch API 50% off; cache reads 0.1x input.

Snapshots move fast — verify at checkout, and post a field note if it changed.

Drop into your Lovable chat

Evaluate Anthropic API / Claude Platform (https://platform.claude.com) for this project, then use it only if it fits what we are already building.
Context: Frontier model provider API. Anthropic's first-party API for the Claude models, plus the Agent SDK, tool use, MCP connectors, files and batch endpoints. This is a model provider, not a gateway — you get the models Anthropic trains and nothing else, with prompt caching and batch as the main cost levers.
Reviewer notes (general, not written for this codebase): Best-in-class coding and agentic tool use, and the only place to get Claude with full feature support. Prompt caching at 0.1x read cost makes long system prompts and big codebase context genuinely affordable.
Watch out for: Output tokens cost 5x input, and extended thinking bills as output — a reasoning-heavy agent loop can 10x your bill versus the naive estimate. Tier-based rate limits throttle new accounts hard.
Pricing: Per token. Opus 5 $5/$25 per M in/out; Sonnet 5 $2/$10; Haiku 4.5 $1/$5; Fable 5 and Mythos 5 $10/$50. Batch API 50% off; cache reads 0.1x input.
Setup: npm i @anthropic-ai/sdk (or pip install anthropic)
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

/api/public/tools/anthropic-api-claude-platform

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