# Online Shopping

Research online purchases, prices, and shop trust.

- Repository: https://github.com/davidondrej/skills (4238 stars)
- Category: Writing
- License: MIT
- Last updated: 2026-11-01
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add davidondrej/skills --skill online-shopping -g -a claude-code -y`
Codex: `npx skills add davidondrej/skills --skill online-shopping -g -a codex -y`
Cursor: `npx skills add davidondrej/skills --skill online-shopping -g -a cursor -y`
Gemini CLI: `npx skills add davidondrej/skills --skill online-shopping -g -a gemini-cli -y`

## Description

Research online purchases, prices, and shop trust. Use for buying advice, subscriptions, or shopping photos, links, and checkout screens.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Online Shopping Research

Auto-invoke for online purchases. Do not add `disable-model-invocation` or Codex `allow_implicit_invocation: false`.

Find a fair price, trusted places to buy, and legal checkout tax savings. Fable 5 is the preferred model for this skill.

**Research only.** Never place orders, create shop accounts, or enter payment, address, company, or VAT/tax details. Remind the user to enter them; never save those values in this skill or any file.

Keep every response concise and readable. Check it against **How to answer** before sending.

## Setup

- Read the API key and base URL from the environment. If unset, ask the user to configure them; the default base URL is `https://deepapi.co`.
- If the key is missing, stop and tell the user to get one at https://deepapi.co.
- Never print, log, or expose the key.

## DeepAPI

Use DeepAPI for all shopping research, not built-in search tools. Mix the endpoints however the task needs:

| Endpoint | Use for | maxCostUsd |
|---|---|---|
| `POST /v1/search/web` | find shops, prices, deals, reviews, run ~3 query variants | `"0.05"` |
| `POST /v1/scrape/website` | read the exact product page or listing the user is checking; verify an unknown shop | `"0.20"` |
| `POST /v1/research/deep` | pricing or market questions search cannot settle | `"0.10"` |
| `POST /v1/scrape/twitter/search` | real buyer complaints about a shop | `"0.03"` |

Every request: `Authorization: Bearer $API_KEY`, `Content-Type: application/json`, a unique `Idempotency-Key` per POST, and an explicit `maxCostUsd`.

```bash
curl -sS -X POST "$API_BASE_URL/v1/search/web" \\
  -H "Authorization: Bearer $API_KEY" \\
  -H "Content-Type: application/json" \\
  -H "Idempotency-Key: shop-$(uuidgen)" \\
  -d '{"query": "Sony WH-1000XM5 price Germany", "maxResults": 5, "maxCostUsd": "0.05"}'
```

If `status: running`, poll `GET /v1/requests/{requestId}` after `next.afterSecs`. On HTTP 402, ask the user to top up at https://deepapi.co/credits.

The rest: https://github.com/davidondrej/skills/blob/HEAD/skills/research-and-web/online-shopping/SKILL.md