mcp-substack-scraper@1.0.1
VERIFIEDPublisher claims: "Substack publications, posts, subscriber counts, and keyword search." Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Server started and answered tools/list.- Tested
- MCP initialize and tools/list · every tool description, for hidden instructions · every file read, file written and host contacted by what ran
- Not tested
- what the tools do when called with real credentials
Before you give it your token
- It will ask for
APIFY_TOKEN- Where it talks to
- apify.com (its own)Also notboring.co, lennysnewsletter.com — not the publisher's domain; check what for before connecting.
- What the honeypot saw
- no credential files read · no network
- What we could not test
- what the tools do when called with real credentials
Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names notboring.co, lennysnewsletter.com as well as its own vendor. The guard injects APIFY_TOKEN only into requests to apify.com (and its subdomains) and refuses the rest.
Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.
Is [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-11 and scored it 92/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 26 s · 2 scenarios · 0 deviationsStatic findings
"build": "tsc && chmod +x build/index.js",Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.No other findings across 436 lines in 6 files.
Cost to the agent
Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.
Known vulnerabilities
No advisories in OSV for @mambalabsdev/mcp-substack-scraper@1.0.1 as of 3d ago. This is the package itself, not its dependencies.