# Anthropic Claude

**Canonical:** https://apis.io/providers/anthropic-claude/  
**Website:** https://www.anthropic.com  
**APIs profiled:** 4

Anthropic Claude is a family of frontier large language models (Opus, Sonnet, Haiku) accessible via the Anthropic API for building AI assistants, agents, and integrations. The API supports streaming chat completions, tool use, vision, prompt caching, batch processing, the Files API, computer use, and the Model Context Protocol, with authentication via x-api-key headers and a base URL at api.anthropic.com.

## Kin Score — 48.3 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 48.3).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 64.7 |
| Governance | 11.4 |
| Contract Governance | 11.4 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 50.0 |
| Commercial Clarity | 44.7 |
| Access Clarity | 44.7 |

## Agent readiness — 39.9 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | documented |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (4)

- **Anthropic Claude Message Batches API** — Submit and manage asynchronous Message Batches.
- **Anthropic Claude Messages API** — Create messages with Claude models.
- **Anthropic Claude Models API** — List and inspect available Claude models.
- **Anthropic Claude Token Counting API** — Count tokens for a prospective Messages request.

## MCP servers (1)

- **MCP Server**

## Agentic access (1)

- **Anthropic Claude Agentic Access** — 9 operations · 4 acting

## Security (3)

- **Anthropic Claude Authentication** — apiKey · 1 scheme
- **Anthropic Claude Domain Security** — TLSv1.3 · HSTS · DMARC
- **Anthropic Claude Vulnerability Disclosure** — Hackerone · security.txt · contact published

## Tags

Artificial Intelligence, Large Language Models, LLM, Generative AI, Chat, Agents, Claude

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/anthropic-claude/). Scores are computed from the provider's own public artifacts under a published rubric.