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Alternatives to claude-api

claude-api is an agent skill by anthropics: Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. If it doesn't fit your setup, these 12 agent skills cover similar ground. They are ordered by how closely they match claude-api and by our rank, which weighs adoption, freshness and documentation; money never changes the order. claude-api-managed-agents-onboarding-source-tier leads the list (open source). 1 of them is published by the company behind the product. Each entry shows data reasons to switch, and you can open a side-by-side comparison with claude-api.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

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claude-api

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration.

12 alternatives

Ordered by how closely each matches claude-api (shared product, category or stated alternative) and by rank.

  1. 1
    claude-api-managed-agents-onboarding-source-tier

    mkusaka

    Closing section of the Claude API skill prompt for managed-agents-onboard requests that states whether the source is a bundled quickstart, a first-party URL…

    • Open source

    ★ 8Last active Oct 6, 2026Claude Code, Claude apps, Codex, Cursor +6

  2. 2
    claude

    dzhng

    Use Claude Code as an independent `claude -p` subagent when the user explicitly asks for Claude, wants a second-agent opinion from Claude, or asks to delegate…

    • Open source

    ★ 1.4KLast active Oct 15, 2026Claude Code, Claude apps, Codex, Cursor +6

  3. 3
    claude-api-in-prototypes

    justinlietz93

    Call Claude from your HTML artifacts via window.claude.complete

    • Open source

    ★ 23Last active Aug 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  4. 4
    claude-api-ops

    claude-mods

    Building applications ON Claude - the Anthropic API and Claude Agent SDK.

    • Open source
    • Supports bash

    ★ 75Last active Oct 14, 2026Claude Code

  5. 5
    anthropic-claude-api

    Pyfagorass

    Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration.

    ★ 2Last active Jun 9, 2026Claude Code, Claude apps, Codex, Cursor +6

  6. 6
    stripe-docs

    stripeOfficial

    Use when the user or agent needs to read, search, or look up Stripe documentation or API reference.

    • Open source

    ★ 2KLast active Sep 9, 2026Claude Code, Claude apps, Codex, Cursor +6

  7. 7
    openloomi-api

    melandlabs

    openloomi HTTP API reference (local-first, served from the OpenLoomi Desktop app at http://localhost:3414).

    • Open source

    ★ 1KLast active Aug 31, 2026Claude Code, Claude apps, Codex, Cursor +6

  8. 8
    quota-tracker

    sonichi

    Track Claude Code quota usage via Anthropic API rate limit headers.

    • Open source
    • Supports TypeScript

    ★ 400Last active Oct 16, 2026Claude Code, Claude apps, Codex, Cursor +6

  9. 9
    context7

    pedronauck

    Retrieves up-to-date documentation, API references, and code examples for any developer technology.

    ★ 641Last active Sep 14, 2026Claude Code, Claude apps, Codex, Cursor +6

  10. 10
    core-animation

    Prisma-Labs-Dev

    API reference: Core Animation (QuartzCore).

    • Open source

    ★ 349Last active Sep 10, 2026Claude Code, Claude apps, Codex, Cursor +6

  11. 11
    Claude Agent SDK -- Python

    thiagofernandes1987-create

    Official Anthropic SDK for building multi-agent systems.

    • Supports bash

    ★ 2Last active Apr 11, 2026Claude Code, Claude apps, Codex, Cursor +6

  12. 12
    openhands-api

    OpenHands

    Reference skill for the OpenHands Cloud REST API (V1) and agent-server APIs, including how to start additional cloud or local backend conversations for…

    • Open source
    • Supports TypeScript

    ★ 173Last active Oct 23, 2026Claude Code, Claude apps, Codex, Cursor +6

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