io.github.catalyst-labs-dev/website-tech-stack-lookup
Website Tech Stack Lookup
Is the Website Tech Stack Lookup MCP server down? No. It is up and needs auth (HTTP 401), probed 2026-11-09.
Domains in, tech stack out: 7,600+ technologies, versions, DNS/email providers. $0.003/site.
needs auth probed 2026-11-15 · unchanged since 2026-11-09 · HTTP 401 · Bearer
Streamable HTTP error: Error POSTing to endpoint: {"error":"invalid_token","error_description":"Missing or invalid access token. Pass an Apify API token in the - Endpoint
- https://mcp.apify.com/?tools=catalyst-labs/website-tech-stack-lookup (streamable-http)
- Host
- mcp.apify.com
- Getting access
- OAuth with dynamic client registration. A client such as Claude Code, Cursor or npx mcpcost auth https://mcp.apify.com/?tools=catalyst-labs/website-tech-stack-lookup registers itself and opens the consent page; the publisher has nothing to set up for you.
Authorization server console-backend.apify.com, PKCE S256, grants authorization_code, refresh_token, urn:ietf:params:oauth:grant-type:device_code.
Scopes full_api_access.
Read from the server's public OAuth metadata, without a token. Method. - Repository
- https://github.com/catalyst-labs-dev/catalyst-labs-mcp
- Website
- https://apify.com/catalyst-labs/website-tech-stack-lookup
- Registry
- active, updated 2026-11-02 · registry entry
Compare this server with others.
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Other registry entries on mcp.apify.com, the ones next to this name; all of them.
- Google Trends API io.github.catalyst-labs-dev/google-trends-api · needs auth
- Local Government Decision Lookup & Fact Check io.github.catalyst-labs-dev/local-government-decision-lookup · needs auth
- Podcast Transcript API io.github.catalyst-labs-dev/podcast-transcript-api · needs auth
- Website Screenshot & PDF API io.github.catalyst-labs-dev/website-screenshot-pdf-api · needs auth
- YouTube Transcript API io.github.catalyst-labs-dev/youtube-transcript-api · needs auth
- Clean Yield Data Tools io.github.cleanyield-data/clean-yield · needs auth
- Korean Retail Data (Daiso, Musinsa) io.github.cocomoon612/korea-retail-data · needs auth
- Naver Search, Map & Blog Data io.github.cocomoon612/naver-korea-search · needs auth
Servers that mention website.
- Business Contact Finder agency.ottobot/business-contact-finder · alive
- ASRM (AI Search Rank Monitor) ai.asrm/asrm · alive
- Augenix ai.augenix/build · alive
- Web Analytics ai.b77/web-analytics · needs auth
- Boolsai Signals ai.boolsai/signals · no DNS
- Cactal ai.cactal/cactal · alive
- CertScore.ai MCP Light ai.certscore/mcp-light · alive
- Clip Studio MCP ai.clipstudio/mcp · needs auth
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers HTTP 401 to an unauthenticated initialize, so the probe cannot list its tools. That is correct for a private server. Some public servers answer initialize and tools/list without credentials and ask for auth on tool calls only; those get a token count here.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.