ebay-checkout SKILL.md skillA
ebay-checkout from zincio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add zincio/skills/ebay-checkout@git:20261019.d0d48d4Pins git:20261019.d0d48d4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- zincio/skills
- Path
skills/ebay-checkout/SKILL.md- Versions recorded
- 12
- Latest version
- git:20261019.d0d48d4, committed Oct 19, 2026
- First version recorded
- Jun 28, 2026
- Size
- 5,707 bytes
- Repository stars
- 7
- License
- MIT
Discover, buy, track, and return real products from eBay (ebay.com) through the Zinc API (zinc.com) — and from almost any other US retailer on the same API. Needs no account to begin — the agent mints its own test key, then earns a live key and a $5 starter credit once its operator approves it. Pay from a pre-funded wallet, per request over MPP or x402, or with a Stripe Link card.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# eBay Checkout
Buy, track, and return products from eBay (ebay.com) through the Zinc API (`https://api.zinc.com`). US orders.
> **Powered by Zinc Universal Checkout.** The same API buys from eBay and almost any other US retailer. To order across multiple retailers from one skill, install the [`universal-checkout`](https://github.com/zincio/skills/tree/master/skills/universal-checkout) skill (`npx skills add zincio/skills --skill universal-checkout`). Live retailer list: `GET https://api.zinc.com/retailers`.
## Getting started
Four steps, in order. Full walkthrough: [Agent Sandbox Quickstart](https://www.zinc.com/docs/v2/agent-sandbox/quickstart.md) and [Going Live](https://www.zinc.com/docs/v2/agent-sandbox/going-live.md).
1. **Get a test key.** `POST https://api.zinc.com/sandbox/keys` — no auth, no signup. Returns `api_key` (`zn_test_…`) and a ready-made `example_order`. Send it as `Authorization: Bearer <api_key>` from here on.
2. **Place a test order.** `POST /orders` with that `example_order`, then poll `GET /orders/{id}`. Free. `status` reaches **`order_placed`** — that is success, and it never becomes `delivered`; shipping shows up under `tracking_numbers[0].status`.
…Read the whole file at its exact version.
How to install
mdr add zincio/skills/ebay-checkout@sha256:51cc2fb904ae8402The line at the top of this page pins the label git:20261019.d0d48d4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_vlbh456oqlqmynk4)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 12 versions of this file, between Jun 28, 2026 and Oct 19, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261019.d0d48d4 latest | 2026-10-19 | d0d48d4 | 5,707 B | A | view · diff |
| git:20261006.6578080 | 2026-10-06 | 6578080 | 5,660 B | A | view · diff |
| git:20260915.a4d8998 | 2026-09-15 | a4d8998 | 5,122 B | A | view · diff |
| git:20260915.42a6204 | 2026-09-15 | 42a6204 | 4,904 B | A | view · diff |
| git:20260914.9ad9ced | 2026-09-14 | 9ad9ced | 4,796 B | A | view · diff |
| git:20260914.de4a110 | 2026-09-14 | de4a110 | 4,787 B | A | view · diff |
| git:20260914.bc382d6 | 2026-09-14 | bc382d6 | 15,088 B | A | view · diff |
| git:20260810.feed32e | 2026-08-10 | feed32e | 13,989 B | A | view · diff |
| git:20260728.9ecb238 | 2026-07-28 | 9ecb238 | 13,988 B | A | view · diff |
| git:20260710.bd81d31 | 2026-07-10 | bd81d31 | 13,920 B | A | view · diff |
| git:20260629.f3ce9dc | 2026-06-29 | f3ce9dc | 12,647 B | A | view · diff |
| git:20260628.b7ff2d7 | 2026-06-28 | b7ff2d7 | 12,581 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5707 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
zincio/skills · 7 stars · license MIT · pushed 2026-10-27 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_vlbh456oqlqmynk4 GET https://markdownregistry.com/api/v1/resolve?ref=zincio/skills/ebay-checkout GET https://markdownregistry.com/api/v1/blob/51cc2fb904ae84027c4ff20bedbc3dbc92bb203847eb581d688a69954272646b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.