# BASE

BASE (Japan) is a free-to-start EC platform with strict checkout-page constraints; external ads on the storefront are limited; adult content is prohibited.

- slug: `base`
- type: EC / commerce platform
- status: active
- official site: https://thebase.com
- official docs: https://help.thebase.com

## Rights

| Key | Value | Condition | Source | Checked |
|---|---|---|---|---|
| adult_content_allowed | no |  | https://help.thebase.in/hc/ja/articles/115000410954 | 2026-04-18 |
| commercial_use_allowed | conditional | Permitted for most lawful commerce; prohibited categories listed in guidelines. | https://help.thebase.in/hc/ja/articles/115000410954 | 2026-04-18 |

## Constraints

| Key | Value | Condition | Source | Checked |
|---|---|---|---|---|
| api_available | conditional | BASE API v1 requires application approval for developer access. | https://developers.thebase.in | 2026-04-18 |
| checkout_customization_available | no | Checkout UI is fixed; only storefront is customizable. | https://thebase.com/pages/terms | 2026-04-18 |
| custom_domain_available | conditional | Available on paid plan; Standard plan uses base.ec subdomain. | https://thebase.com/pages/terms | 2026-04-18 |

## Primary sources

- [BASE Developers](https://developers.thebase.in) — official_docs (primary), Checked: 2026-04-18
- [BASE ショップ運営ガイドライン（禁止事項）](https://help.thebase.in/hc/ja/articles/115000410954) — official_docs (primary), Checked: 2026-04-18
- [BASE 利用規約](https://thebase.com/pages/terms) — official_terms (primary), Checked: 2026-04-18

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Canonical HTML: https://atlas.lb-product.com/en/entities/base