Signal Lab Apify Data Tools
Run Signal Lab Apify Actors for price tracking, keywords, RAG, transcripts, Reddit, jobs, and menus.
Open source Repository Open in the app JSON README (API)
About
Run Signal Lab Apify Actors for price tracking, keywords, RAG, transcripts, Reddit, jobs, and menus.
Details
- Kind
- MCP servers
- Topic
- Web search, scraping & browser
- Publisher
- vzezelin
- Origin
- official
- Category
- ferramentas
- Transport
- http
- Version
- 1.0.0
- Last push
- 2026-09-05T06:11:48Z
- Repository state
- ativo
- Language
- HTML
- Added
- 2026-09-04 21:00:53
- Updated
- 2026-09-04 21:00:53
- Origin id
io.github.VZezelin/signal-lab-apify-tools
README
# Signal Lab — MCP Server + Apify Data APIs
Developer-first **Apify Actors and MCP tools** for Amazon price tracking, Google Autocomplete, website-to-Markdown/RAG, YouTube transcripts, Reddit search/comments, public job postings, and restaurant menus.
## Start here
| Need | Run now | API guide |
|---|---|---|
| Track an Amazon ASIN / price drop | [Run Amazon Price Tracker on Apify](https://apify.com/signal_lab/amazon-price-tracker) | [Amazon Price Tracker API](./amazon-price-tracker-api.md) |
| Get Google Autocomplete buyer-intent keywords | [Run Google Autocomplete API on Apify](https://apify.com/signal_lab/google-autocomplete-keywords) | [Google Autocomplete API](./google-autocomplete-api.md) |
| Convert a website to Markdown for RAG/LLMs | [Run Website to Markdown on Apify](https://apify.com/signal_lab/website-to-markdown-crawler) | [Website to Markdown API](./website-to-markdown-api.md) |
| Get a YouTube transcript with timestamps | [Run YouTube Transcript API on Apify](https://apify.com/signal_lab/youtube-transcript-scraper) | [YouTube Transcript API](./youtube-transcript-api.md) |
| Search Reddit posts and comments | [Run Reddit Scraper API on Apify](https://apify.com/signal_lab/reddit-search-comments) | [Reddit Scraper API](./reddit-scraper-api.md) |
| Extract a public job posting | [Run Job Vacancy Scraper on Apify](https://apify.com/signal_lab/job-vacancy-scraper) | [Job Posting Scraper API](./job-posting-scraper-api.md) |
| Extract restaurant menu items and prices | [Run Restaurant Menu Extractor on Apify](https://apify.com/signal_lab/restaurant-menu-extractor) | [Restaurant Menu Scraper API](./restaurant-menu-scraper-api.md) |
**No code:** open any Actor above, enter the input, and click **Start**.
**API:** use the copy-paste examples below or open the dedicated guide.
**AI agent / MCP:** connect the single remote endpoint below and choose the tool you need.
> Pricing can change. Use each Actor's live **Pricing** tab in Apify as the source of truth.
## Install as an Agent Skill
Signal Lab also ships a portable Agent Skill that teaches compatible agents when and how to route public-data work through the focused Apify Actors and Official MCP tools without embedding owner credentials.
**Indexed in askill:** https://askill.sh/skills/703900
**OpenAgentSkill registry:** https://www.openagentskill.com/skills/vzezelin-first-signal-lab-apify-tools
Install from the verified askill registry entry:
```bash
npx askill-cli add gh:VZezelin/first@signal-lab-apify-tools -y
```
Or list/install directly from this public GitHub repository:
```bash
npx skills add VZezelin/first --list
npx skills add VZezelin/first --skill signal-lab-apify-tools -a codex -y --copy
```
The public install path has been verified from a clean workspace. The skill itself is at [`skills/signal-lab-apify-tools/SKILL.md`](./skills/signal-lab-apify-tools/SKILL.md). Installing the skill does not supply Apify credentials; paid Actor or MCP execution still uses the installer's own Apify authentication.
## Official MCP Registry
Signal Lab is published in the **Official Model Context Protocol Registry** as:
`io.github.VZezelin/signal-lab-apify-tools`
Registry search: https://registry.modelcontextprotocol.io/?q=io.github.VZezelin%2Fsignal-lab-apify-tools
The registered remote uses Apify's hosted Streamable HTTP MCP endpoint and exposes a focused set of Signal Lab tools:
```json
{
"mcpServers": {
"signal-lab": {
"url": "https://mcp.apify.com?tools=signal_lab/amazon-price-tracker,signal_lab/google-autocomplete-keywords,signal_lab/website-to-markdown-crawler,signal_lab/youtube-transcript-scraper,signal_lab/reddit-search-comments,signal_lab/job-vacancy-scraper,signal_lab/restaurant-menu-extractor"
}
}
}
```
Apify handles the MCP connection and authentication flow. Actor pricing remains defined by each Actor's live Apify Pricing tab.
## Buyer-intent API guides
- [Amazon Price Tracker API — ASIN monitoring and price-drop alerts](./amazon-price-tracker-api.md)
- [Google Autocomplete API — buyer-intent keyword research](./google-autocomplete-api.md)
- [Website to Markdown API — clean RAG and LLM ingestion](./website-to-markdown-api.md)
- [YouTube Transcript API — captions, timestamps, and metadata](./youtube-transcript-api.md)
- [Job Posting Scraper API — title, salary, company, and location](./job-posting-scraper-api.md)
- [Restaurant Menu Scraper API — items, prices, sections, and descriptions](./restaurant-menu-scraper-api.md)
- [Reddit Scraper API — search posts and comments](./reddit-scraper-api.md)
## 1. Amazon Price Tracker API — track an ASIN and build price-drop alerts
**Run in Store:** https://apify.com/signal_lab/amazon-price-tracker
Useful for:
- Amazon price tracking by ASIN/product URL
- price history pipelines
- price-change and price-drop alerts
- scheduled competitor monitoring
Run through the Apify API:
```bash
curl -X POST \
"https://api.apify.com/v2/acts/signal_lab~amazon-price-tracker/runs" \
-H "Authorization: Bearer $APIFY_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"productUrls": ["https://www.amazon.com/dp/0132350882"],
"emitOnlyChanges": false,
"proxyConfiguration": {"useApifyProxy": false},
"maxItems": 10
}'
```
For alerts, run it on an Apify schedule and connect a webhook/Make/n8n flow to the resulting dataset.
## 2. Google Autocomplete API — buyer-intent keyword suggestions
**Run in Store:** https://apify.com/signal_lab/google-autocomplete-keywords
Useful for:
- Google Autocomplete keyword research
- commercial modifiers such as `cost`, `pricing`, `free`, `alternative`, and `API`
- country/language-specific long-tail research
- programmatic SEO and demand discovery
```bash
curl -X POST \
"https://api.apify.com/v2/acts/signal_lab~google-autocomplete-keywords/runs" \
-H "Authorization: Bearer $APIFY_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"queries": ["google autocomplete api"],
"language": "en",
"country": "us",
"expandAlphabet": false,
"includeQuestions": false,
"maxResults": 20
}'
```
## 3. Website to Markdown API — clean pages for RAG and LLM ingestion
**Run in Store:** https://apify.com/signal_lab/website-to-markdown-crawler
Useful for:
- website-to-Markdown conversion
- clean RAG/LLM source documents
- headings, links, metadata, and structured page extraction
- one-page API calls or bounded website crawls
```bash
curl -X POST \
"https://api.apify.com/v2/acts/signal_lab~website-to-markdown-crawler/runs" \
-H "Authorization: Bearer $APIFY_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"startUrls": [{"url": "https://example.com"}],
"maxPages": 1,
"maxDepth": 0,
"sameDomainOnly": true,
"useSitemaps": false,
"respectRobotsTxt": true
}'
```
## 4. YouTube Transcript API — captions, timestamps, and metadata
**Run in Store:** https://apify.com/signal_lab/youtube-transcript-scraper
**API guide:** [youtube-transcript-api.md](./youtube-transcript-api.md)
Useful for:
- public YouTube transcripts
- timestamped caption segments
- RAG and semantic search
- research, summarization, and indexing workflows
The dedicated guide includes the current input fields, a copy-paste API call, and the focused MCP configuration.
## MCP / AI-agent usage
The Official MCP Registry entry above is the canonical discovery record for this Signal Lab tool bundle. You can also configure the same Apify-hosted endpoint directly in MCP-compatible clients.
After authentication, an agent can request tasks such as:
- “Track this Amazon ASIN and return the current price.”
- “Find Google Autocomplete suggestions for this buyer-intent keyword.”
- “Convert this page to clean Markdown for a RAG pipeline.”
- “Get this public YouTube transcript with timestamps.”
- “Search Reddit for recent product feedback and return source URLs.”
- “Extract structured fields from this public job posting.”
- “Extract menu items and prices from this restaurant page.”
## More Signal Lab Actors
Browse the public portfolio: https://apify.com/signal_lab
Use public data responsibly and follow the target site's terms, privacy rules, copyright requirements, and applicable law.