---
name: claude
description: Operate Claude as an agent using public APIs, CLIs, and docs. Twin Score agent 92.
---

# Claude skill

Claude is Anthropic's family of constitutional-AI models and the claude.ai workbench. It is widely used for long-context writing, coding, and careful tool use. Artifacts, Projects, and the desktop-class chat UI serve humans; the Messages API, tool use, computer-use betas, and MCP-oriented tooling serve agents. Anthropic publishes relatively clear model cards and rate-limit docs, which lifts the agent score above products that hide quotas behind a marketing site. Twin Score on this directory is 86 for humans and 92 for agents, using the public rubric (interface, onboarding, human docs, collaboration, support, pricing fairness, accessibility, reliability versus API quality, MCP or tool surface, CLI, structured docs, machine auth, quotas, determinism, and skill packaging). Claude is sold by Anthropic, founded 2023, headquartered in San Francisco, USA. Pricing in public materials: Free, Pro, Team, and Enterprise on claude.ai; Anthropic API is usage-based. Machine capabilities we record: API excellent, MCP strong, CLI strong, docs excellent, auth API keys, AWS Bedrock, Google Vertex. This page is editorial, not a star rating scraped from users.

## When to use

Use this skill when a user asks to integrate, script, or evaluate Claude (Anthropic).

## When not to use

Do not claim an MCP server exists unless the capability matrix says so (current MCP level: strong). Do not invent user-count ratings.

## Capability matrix

| Surface | Level |
|---|---|
| API | excellent |
| MCP | strong |
| CLI | strong |
| Docs | excellent |
| Auth | API keys, AWS Bedrock, Google Vertex |
| Webhooks | strong |
| SDKs | python, typescript, http |

## Auth

API keys, AWS Bedrock, Google Vertex

## Pricing (public)

Free, Pro, Team, and Enterprise on claude.ai; Anthropic API is usage-based.

## Official site

https://claude.ai

## Twin Score

Human 86. Agent 92. Updated 2026-08-01. Rubric: https://buildsomethingagentswant.com/scorecard

## Alternatives

- chatgpt
- gemini
- grok