mcp@0.13.1
VERIFIED· not startedPublisher claims: "MCP server for ByCrawl - query 16 social and data platforms from AI agents" Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Not started: dependency install failed; the server itself was not observed.- Tested
- the dependency install step · every file read, file written and host contacted by what ran
- Not tested
- server startup · the tool list · tool behavior
What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.
Before you give it your token
- It will ask for
BYCRAWL_API_KEYJWT_SECRETSUPABASE_SECRET_KEYConfiguration, not credentials: BYCRAWL_API_URL, EXTERNAL_URL, KEY_ENCRYPTION_KEY, SUPABASE_PUBLISHABLE_KEY, SUPABASE_URL, TRANSPORT- Where it talks to
- bycrawl.com (its own)
- What the honeypot saw
- no credential files read · no network
- What we could not test
- server startup · the tool list · tool behavior
Connect it with a scoped credential, under the guard. It asks for BYCRAWL_API_KEY, JWT_SECRET, SUPABASE_SECRET_KEY and talks to bycrawl.com. Give the credential to the guard, not the server: the value never enters the server's environment and only travels to the host you bind. What the tools do with a real credential was not observed.
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; not started: dependency install failed; the server itself was not observed) on 2026-11-14 and scored it 92/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 7 s · 2 scenarios · 0 deviationsStatic findings
console.log(`[MCP POST] session ${sessionId} not found in ${Object.keys(sessions).length} active sessions — treating as new`);Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.console.log(`[MCP POST] existing session ${sessionId}, body method=${req.body?.method}`);Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.console.log(`[MCP POST] ${sessionId ? "stale session recovery" : "new session"} (initialize)`);Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.console.log(`[MCP POST] session initialized: ${sid}`);Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.console.log(`[MCP POST] apiKey=${maskedKey} sessionId=${req.headers["mcp-session-id"] ?? "(none)"}`);Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.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 @bycrawl/mcp@0.13.1 as of 2 h ago. This is the package itself, not its dependencies.