Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add scraperapi/scraperapi-skills --skill scraperapi-price-monitoringgit clone --depth 1 https://github.com/scraperapi/scraperapi-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/scraperapi/scraperapi-skills/scraperapi-price-monitoring)<a href="https://agentmods.dev/skills/scraperapi/scraperapi-skills/scraperapi-price-monitoring"><img src="https://agentmods.dev/badge/skills/scraperapi/scraperapi-skills/scraperapi-price-monitoring/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/scraperapi/scraperapi-skills/scraperapi-price-monitoring"><img src="https://agentmods.dev/badge/skills/scraperapi/scraperapi-skills/scraperapi-price-monitoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00196 | $0.02888 |
| Opus 5 | $0.00098 | $0.01444 |
| Sonnet 5 | $0.00039 | $0.00578 |
| Haiku 4.5 | $0.00020 | $0.00289 |
Grade A, and why
scraperapi-price-monitoring scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
**Auth:** All transports authenticate against ScraperAPI. The MCP server reads the key from its own configured environment when the user set it up. The curl fallback reads `$SCRAPERAPI_API_KEY` from the shell. Do not run How it starts
The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Price Monitoring
Given a list of products (ASINs, Walmart URLs, or free-text Google Shopping queries) and an optional baseline file, fetch current prices via ScraperAPI's structured endpoints, compare against the baseline, and produce a structured change report.
You — Claude — execute the API calls using the Bash tool. Do not generate a script for the user to run; fetch the data yourself in this turn and report findings as you go. If the user explicitly asks for a CLI/cron-able script instead, point them at scraperapi-cli and stop.
Auth: All transports authenticate against ScraperAPI. The MCP server reads the key from its own configured environment when the user set it up. The curl fallback reads $SCRAPERAPI_API_KEY from the shell. Do not run a standalone check for the key — just make the first real request. ScraperAPI returns 401 if the key is missing or invalid, and Phase 3's failure-handling table already covers that case. Adding a pre-flight echo only costs the user an extra permission prompt without learning anything you wouldn't learn from the first call.
Phase 1 — Parse the watchlist
Before fetching anything, classify each target. Different inputs route to different ScraperAPI endpoints, and routing wrong wastes credits.
| Input shape | Endpoint | Required param |
|---|---|---|
10-char alphanumeric (e.g., B08N5WRWNW) |
structured/amazon/product |
asin |
URL containing amazon. |
structured/amazon/product |
extract asin from URL, fall back to url |
URL containing walmart.com |
structured/walmart/product |
url |
Free-text query (e.g., "airpods pro 2") |
structured/google/shopping |
query |
| Anything else | Tell the user it is not supported by this skill; suggest scraperapi-autonomous-research for arbitrary URLs |
Announce the parsed plan before running: "Watchlist parsed: 3 Amazon products, 1 Walmart product, 1 Google Shopping query. Baseline: prices.json (last updated 2026-05-25). Fetching now."
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 191 lines · 196 tokens per session scan A 1928c6a00541
scraperapi-price-monitoring is a skill published in the GitHub repository scraperapi/scraperapi-skills (10 stars, last pushed 1mo ago), licensed MIT. It adds 196 tokens to every session and 2,888 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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