---
title: One public catalog contract for HTTP, MCP, SDKs and skills
url: https://namegarage.com/blog/catalog-api-sdk-skill-release
author: Namegarage
date: '2026-10-27'
description: Look up domains, compare payment options and find alternatives through
  matching public interfaces.
---

# One public catalog contract for HTTP, MCP, SDKs and skills

A useful assistant integration needs the same facts whichever interface it uses.
The catalog release coordinates the HTTP API, MCP tools, JavaScript and TypeScript
SDK, and catalog skill. The [developer changelog](/developers/changelog/) records
the exact versions and compatibility notes separately from this engineering blog.

The HTTP API adds three read-only routes:

- `GET /api/domain?name=example.invalid` looks up one complete published name, including its published description and potential uses.
- `GET /api/purchase-options?name=example.invalid` compares the current outright
  price with the published standard zero-down lease-to-own schedules.
- `GET /api/alternatives?name=example.invalid&query=project&limit=5` finds other
  published names and excludes the reference before applying the result limit.

The examples use a fictional `.invalid` name. A missing listing does not establish
registration availability. A null price means offer-only. Search text is sent to
Namegarage; keep confidential project details out of it.

[SDK 0.2.0](https://www.npmjs.com/package/@namegarage/sdk/v/0.2.0) adds
`getDomain()`, `getPurchaseOptions()` and `suggestAlternatives()`.
All payment amounts come from the server. Compare the monthly payment, final
payment, total and extra cost against buying outright; a cash-only discount may
not apply to the lease principal. Follow the returned page for current terms,
other payment choices and additional checkout fees.

These interfaces share the same publication checks and request allowance.
They do not reserve names, create quotes, start checkout, send messages or access
private portfolio records. The [API reference](/developers/api/),
[SDK quickstart](/docs/quickstart) and [MCP guide](/mcp/) describe the contracts.

[Catalog skill 1.1.0](https://github.com/namegarage/skills/releases/tag/v1.1.0)
includes the same operations and is available on
[ClawHub](https://clawhub.ai/namegarage/skills/catalog) and through the
[skills.sh install command](https://www.skills.sh/namegarage/skills/catalog).
Fresh skills.sh installs deliver the new skill; its listing page still shows
cached older guidance while the directory refreshes.

Future public changes require a compatibility record across the service, SDK
and skill repositories, a developer changelog entry and a dev-blog update.
A release remains pending until every affected package and directory is verified.