MCP Server Discovery - September 10, 2026 (Night Sweep)

Source: chatmcp/mcpso issues #3999-#4031 (30 fetched, fresh window past the Sep 9 night cutoff), mcp.so homepage recentServers (8 blocks), mcpservers.org /all pages 1-2 (60 slugs via r.jina.ai reader proxy) Method: issue-body enrichment, feed $R-block parsing, /all slug extraction + detail-page fetch, live JSON-RPC probes, repo/PyPI/npm verification Date: September 10, 2026 ~03:10 MST (10:10 UTC)

Summary

Metric	Count
mcp.so issues evaluated	30 (#3999-#4031)
mcp.so homepage recentServers blocks	8 (all prior dispositions)
mcpservers.org /all slugs cross-ref'd	60
Detail pages fetched	30
Live JSON-RPC probes	4 endpoints (2 keyless captured with tools/list, 2 key-challenged = liveness)
New servers catalogued	6
Integration guides written	6
Skipped (not catalogued)	45+

New Business-Relevant Servers (6 guides)

Server	Slug	Class	Verification
mcp-x MCP	mcp-x	Official X API v2 as 42 Go tools, OAuth 1.0a user context	issue #4031 + repo Role1776/mcp-x (1 star, MIT, created Sep 9) + README tool extraction (42 x_* names) + Official Registry io.github.Role1776/mcp-x 0.1.1 active
Shop MCP	shop-mcp	Read-only Shopify catalogue and stock, stdlib-only single file	issue #4030 + PyPI shop-mcp 1.0.1 + repo hello532/shop-mcp (MIT, created Sep 7) + glama scored A/A/B
WaitingForPower MCP	waitingforpower-mcp	US energy permitting tracker, keyless remote	issue #4011 + LIVE PROBE (v1.0.0, keyless, 6 tools captured) + repo briandgoldberg/WaitingForPower (MIT)
Mellow Hub MCP	mellow-hub-mcp	Multi-network social publishing, 9 networks, scoped keys	/all detail page (full 12-tool docs) + LIVE PROBE (key challenge = liveness) + endpoint www.mellow.world/mcp
Parlel MCP	parlel-mcp	Keyless professional network search (people/companies/jobs/agents)	/all detail page + LIVE PROBE (v1.0.0, keyless, 8 tools captured) + endpoint api.parlel.com/mcp
Capslane MCP	capslane-mcp	Timestamped YouTube transcripts	/all detail page (3 tools, full install matrix) + LIVE PROBE (key challenge = liveness) + npm @webba_tech/capslane-mcp 0.1.8 (MIT) + repo Webba-Creative-Technologies/capslane-mcp (1 star)

Findings

• mcp-x: the official X API v2 instead of cookie-driven browser automation. 42 tools across posts (read/write), search with full operator support, users, lists (14 tools), bookmarks and media upload. Destructive hints on all writes, readOnly hints on reads, cost-guard design (x_posts_count sizes topics without post-read spend, batched lookups, manual pagination). Refuses to start without valid credentials; detects the read-only token trap at startup. Category: Social Media Management.
• Shop MCP: four read-only tools (search_products, get_product, check_inventory, low_stock_report) over read_products + read_inventory scopes only. One stdlib-only Python file - the whole surface can be read before it is run. Completes the MCP handshake without credentials and only fails on tools/call. Category: Commerce & E-Commerce.
• WaitingForPower: keyless remote MCP over the WaitingForPower dataset - 41 state utility/siting commissions plus EIA, LBNL, ORNL and the Federal Permitting Dashboard, normalized into cited project records (stage, delay cause, wait duration). 6 tools live-probed. Category: Data & Analytics.
• Mellow Hub: one API call publishes to Instagram, TikTok, YouTube, X, LinkedIn, Threads, Bluesky, Pinterest and Facebook with per-channel validate_post/preview_post, required idempotency keys, per-key grants (autopilot vs review mode, channel scopes, daily quotas) and per-channel outcome reporting (partial failures named). Category: Social Media Management.
• Parlel: anonymous free JSON API over a professional network - search_jobs (comp/seniority/remote filters), search_companies (industry/size/hiring), search_people (skill tags), search_agents. Stable URLs for closed roles, contact details never exposed. Category: Business Operations.
• Capslane: YouTube transcripts with millisecond timestamps, native/auto/generate modes, job-based polling that fits interactive assistants, workspace allowance billing (status checks free). Remote endpoint + npm + Claude Code plugin marketplace. Category: Content & Research.

Non-Catalogued (Disposed or Repeats)

• MCPREADY #4029: MCP-server correctness gate with HMAC-signed receipts - submission repo unempyd/mcpready returns GitHub 404, artifact unverifiable. Skip.
• CCS MCP #4020: already disposed by a prior sweep (local security runtime verification, dev tool).
• Atako #4019 (agent-platform management - agent infra), Arkon Vault #4022 (agent continuity vault - agent memory class, Kontexta precedent), Caliu Notes #4018 (personal-library class), Keyban #4015 (x402 wallet class, IMBA precedent), dex-data #4021 (crypto class), mumo #4005 (multi-model deliberation - agent infra).
• Consumer: SavingsLast #4007 (retirement calculators), Movie Planner #4017, LiftTrack, Telegram Calendar, Forge UI (Roblox creator utility).
• Dev utility class: sift #4010, 3D Visualizer #4009, schema-bridge #4026, mcp-context-condenser #4025, mcp-smart-git #4024, mcp-doctor #4027, AI Developer MCP Pro Suite #4028 (paid Gumroad bundle), juudd #4006, Veriton #3999, Shiplight (coding-agent browser testing), Idle9 (persistent agent computer - agent infra).
• Geo-niche: ead-factory #4013 (Spanish legal-evidence), Aikstockdata (Korean), RuSender + Htmlkin (Russian).
• Thin docs: SHAR Production Metadata #4014/#4003 (empty issue body + shell detail page), UK Legislation Changes (no tool list published), Business Verify API (personal docs host, no registry record).
• Desktop utility: Plugsight #4002 (macOS USB device monitor).
• /all nav-only shells (~1900 bytes): aceatdev, sadri-dridi, pennyforgeorg, abstractglitch, themsquared, gotchseo, kleinicke, fitsociety, novalyth, gopisrikrishna, hexahedral-inc, peeroren, adsroid.
• Prior dispositions on /all pages 1-2: Magic Cloud (hyperlambda), OmniDome (humanmirror), plus the Sep 9 night sweep's catalogued and disposed set still occupying page 1.
• mcp.so homepage recentServers repeats: Orthogonal, toll402, Loadster, priostack, pulse-verity, dxpert UNS, GoBuy, Yocoolab - all prior dispositions.

Notes

• Repo frontmatter fixes bundled: 3 skills-catalog pages from the sibling skills sweep (codebase-design-setup, impeccable-design-polish-setup, resolving-merge-conflicts-setup) had unquoted descriptions with ': ' that failed the repo validate_frontmatter.py gate - quoted, gate green (4,110 files scanned).
• Honcho MCP tools unavailable in this cron session (tool registry miss) - handoff written to GBrain + skill ledger instead.