Bycrawl MCP Server
@bycrawl/mcp
npm
v0.9.0
Published by @bycrawl — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.
MCP server for ByCrawl — query 15+ social media platforms (Threads, X, Facebook, Reddit, LinkedIn, TikTok, Instagram, YouTube) from AI agents
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 4 = 96. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −3 | capability blast radius (moderate) — client exposure if the model is manipulated |
| −1 | publisher verification (public source) — no provenance, but the source is public and inspectable |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 1
medium Untrusted input can drive an external actionMTC-FLOW-005
Untrusted-input tools ([facebook_get_page, facebook_get_page_posts, facebook_marketplace_browse, google_search, web_fetch, web_search]) co-exist with external-action tools ([x_get_post_comments]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.
Evidence: untrusted [facebook_get_page, facebook_get_page_posts, facebook_marketplace_browse, google_search, web_fetch, web_search] → sinks [x_get_post_comments]
Fix: Require confirmation for state-changing/egress actions triggered after processing untrusted content.
Location: flow facebook_get_page → x_get_post_comments
Tools 99
Each tool and what it can reach — statically extracted from the published source.
facebook_get_pageingests untrusted inputfacebook_get_page_postsingests untrusted inputfacebook_marketplace_browseingests untrusted inputgoogle_searchingests untrusted inputweb_fetchingests untrusted inputweb_searchingests untrusted inputx_get_post_commentsnetwork egressbycrawl_get_accountno sensitive capabilitybycrawl_healthno sensitive capabilitydcard_get_forumno sensitive capability
Show 89 more tools ↓
dcard_get_forum_postsno sensitive capabilitydcard_get_personano sensitive capabilitydcard_search_postsno sensitive capabilityfacebook_get_postno sensitive capabilityfacebook_get_post_commentsno sensitive capabilityfacebook_marketplace_itemno sensitive capabilityfacebook_marketplace_searchno sensitive capabilityfacebook_search_postsno sensitive capabilitygmaps_get_placeno sensitive capabilitygmaps_get_place_reviewsno sensitive capabilitygmaps_search_placesno sensitive capabilitygoogle_financeno sensitive capabilitygoogle_newsno sensitive capabilitygoogle_shoppingno sensitive capabilitygoogle_trendsno sensitive capabilityhackernews_get_itemno sensitive capabilityhackernews_get_item_commentsno sensitive capabilityhackernews_get_storiesno sensitive capabilityhackernews_get_userno sensitive capabilityinstagram_get_postno sensitive capabilityinstagram_get_post_commentsno sensitive capabilityinstagram_get_userno sensitive capabilityinstagram_get_user_postsno sensitive capabilityinstagram_search_tagsno sensitive capabilityjob104_get_companyno sensitive capabilityjob104_get_jobno sensitive capabilityjob104_search_jobsno sensitive capabilitylinkedin_get_companyno sensitive capabilitylinkedin_get_company_employeesno sensitive capabilitylinkedin_get_company_jobsno sensitive capabilitylinkedin_get_company_postsno sensitive capabilitylinkedin_get_jobno sensitive capabilitylinkedin_get_postno sensitive capabilitylinkedin_get_userno sensitive capabilitylinkedin_get_user_postsno sensitive capabilitylinkedin_search_companiesno sensitive capabilitylinkedin_search_jobsno sensitive capabilitylinkedin_search_usersno sensitive capabilityluma_get_calendar_eventsno sensitive capabilityluma_get_categoriesno sensitive capabilityluma_get_eventno sensitive capabilityluma_get_placeno sensitive capabilityluma_get_place_eventsno sensitive capabilityluma_search_eventsno sensitive capabilityproducthunt_get_postno sensitive capabilityproducthunt_get_postsno sensitive capabilityproducthunt_get_reviewsno sensitive capabilityproducthunt_search_postsno sensitive capabilityptt_get_boardno sensitive capabilityptt_get_board_postsno sensitive capabilityptt_get_postno sensitive capabilityptt_search_postsno sensitive capabilityreddit_get_postno sensitive capabilityreddit_get_subredditno sensitive capabilityreddit_get_subreddit_postsno sensitive capabilityreddit_get_userno sensitive capabilityreddit_get_user_postsno sensitive capabilityreddit_search_postsno sensitive capabilityrent591_get_listingno sensitive capabilityrent591_get_listingsno sensitive capabilitythreads_get_postno sensitive capabilitythreads_get_post_repliesno sensitive capabilitythreads_get_posts_batchno sensitive capabilitythreads_get_public_feedno sensitive capabilitythreads_get_userno sensitive capabilitythreads_get_user_postsno sensitive capabilitythreads_get_user_repliesno sensitive capabilitythreads_search_postsno sensitive capabilitythreads_search_usersno sensitive capabilitytiktok_get_userno sensitive capabilitytiktok_get_user_videosno sensitive capabilitytiktok_get_videono sensitive capabilitytiktok_get_video_commentsno sensitive capabilitytiktok_get_video_subtitlesno sensitive capabilitytiktok_search_videosno sensitive capabilitytrustpilot_get_businessno sensitive capabilitytrustpilot_get_business_reviewsno sensitive capabilitytrustpilot_get_suggestionsno sensitive capabilitytrustpilot_search_businessesno sensitive capabilitytrustpilot_search_categoriesno sensitive capabilityx_get_postno sensitive capabilityx_get_userno sensitive capabilityx_get_user_postsno sensitive capabilityx_search_postsno sensitive capabilityyoutube_get_channelno sensitive capabilityyoutube_get_videono sensitive capabilityyoutube_get_video_commentsno sensitive capabilityyoutube_get_video_transcriptionno sensitive capabilityyoutube_search_videosno sensitive capability
Toxic flows 1
Cross-tool combinations that form a data-exfiltration primitive (untrusted input → sensitive source → external sink).
What this scan could not see
- Tools were statically extracted from the published source (99 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.9.0 latest |
A 96/100 | 1 | 1.13.0 | 2026-09-07 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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