---
title: Antigravity IDE vs Claude API
slug: antigravity-vs-claude-api
type: agent-comparison
a: antigravity
b: claude-api
canonical: https://top-agent-skills.com/compare/antigravity-vs-claude-api
rubric: 1.0
---

# Antigravity IDE vs Claude API

Side-by-side for SKILL.md agent Skills: install model, shell access, native support, and how many Skills are verified on each.

## At a glance

| | Antigravity | Claude API |
| --- | --- | --- |
| Vendor | Antigravity | Anthropic |
| Native SKILL.md support | Yes | Yes |
| Verified skills indexed | 36 | 13 |
| Install model | Local folder | POST /v1/skills |
| Shell / Bash access | Yes | Sandboxed |
| Tagline | Antigravity IDE ships with the awesome-skills bundle (1,234+ pre-installed) out of the box. | Claude API + Skills SDK. Pre-built skill_id values plus custom uploads via /v1/skills. |

## Overlap

- Verified on both: 3
- Only Antigravity: 33
- Only Claude API: 10

## Which should you pick?

Both support SKILL.md natively, so the choice is about ecosystem fit. Pick Antigravity IDE for Antigravity integrations and the workflows it makes easiest; pick Claude API for Anthropic integrations and its specific surface.

Many teams use both — Skills with the SKILL.md spec are portable, and 3 of the skills indexed here are verified on both agents.

Per-agent rankings: https://top-agent-skills.com/skills-for-antigravity · https://top-agent-skills.com/skills-for-claude-api

## Common questions

**Which is better for SKILL.md skills, Antigravity IDE or Claude API?**

Both support SKILL.md natively. Antigravity IDE has 36 verified skills indexed here; Claude API has 13. 3 skills work on both.

**Can I use the same Skill on Antigravity IDE and Claude API?**

3 of the skills indexed here work on both. The SKILL.md spec is shared, so most skills run cleanly on both — the exceptions are skills that depend on agent-specific tools (Bash, Workflows, MCP patterns).

**How do I install a Skill on Antigravity IDE?**

1,234+ as of the latest release. The bundle covers document processing, code quality, security, design, marketing, data and more — most users find what they need without installing anything.

**How do I install a Skill on Claude API?**

POST your Skill zip to /v1/skills. You receive a skill_id. Reference it in your messages request — the model loads the Skill on demand.

**Which agent should I pick for cross-platform skill use?**

Both support skills natively. Pick by ecosystem fit: Antigravity IDE for Antigravity customers, Claude API for Anthropic customers.

---

_Top Agent Skills. Machine-readable twin of https://top-agent-skills.com/compare/antigravity-vs-claude-api._