ProductClank

ProductClank MCP Server

Launch community growth campaigns from your AI assistant. ProductClank turns real communities (and their agents) into a distribution network — this MCP server lets Claude, ChatGPT, or any MCP client rally that network on your behalf: boost a post with real replies, likes, and reposts; launch community content campaigns; draft social content into your own pipeline.

• Remote server: https://mcp.productclank.com/mcp (Streamable HTTP) — see Endpoints for the creator-campaign endpoint
• Auth: OAuth 2.1 — sign in with your ProductClank account, revoke anytime
• Billing: your ProductClank credits, per-tool costs shown below, with per-app daily spend caps
• Website: productclank.com/mcp

The same URL works in both Claude and ChatGPT — the only difference is where each app hides its "add a connector" screen (and, for ChatGPT, a plan/Developer-mode requirement). Once connected, both drive the identical tools below.

Endpoints

The server mounts the same MCP implementation at two URLs, each serving a different tool profile (src/tools/index.ts):

Endpoint	Profile	Served to	Tools
https://mcp.productclank.com/mcp	full	Claude, ChatGPT, the MCP registry — the URL in every connect guide below	all of them, boost_post included
https://mcp.productclank.com/creator	creator	Meta's Muse connector directory	everything except boost_post

The creator profile is the connector as a creator-campaign product: a brand commissions creators, and creators are paid for original content they publish from their own accounts. boost_post is the one tool that does not fit — it sells likes and repost, which are engagement signals, and accepts Instagram post URLs — and Meta's Spam community standard bars paying for engagement. So it is excluded from /creator pending Meta approval, after which it can be added back.

The split is by URL rather than by OAuth client on purpose: tools/list is deliberately unauthenticated (so directory health checks can introspect), which means a reviewer can list tools before any client identity exists. Prompts and the productclank://capabilities resource are filtered the same way, so nothing the creator endpoint serves mentions boosts, likes or reposts.

Both endpoints share one OAuth authorization server, one set of tokens, one session sweeper and the same JSON-only-client handling; each is its own RFC 9728 protected resource (/.well-known/oauth-protected-resource/mcp and …/creator).

Connect from Claude

1. In Claude, go to Settings → Connectors → Add custom connector (Desktop or web).
2. Paste the URL:

   https://mcp.productclank.com/mcp
   

3. Approve the OAuth prompt — it signs you into ProductClank (Google or email) and asks for consent.
4. Ask Claude things like:

   "Boost this post with replies from the ProductClank community: https://x.com/…" "Preview a content campaign for my product." "What's my ProductClank credit balance?"

Getting new tools: Claude loads the tool list when a conversation starts. After we ship a new tool or option, start a new conversation to see it. In Claude Code, run /mcp and reconnect ProductClank (or start a new session).

Connect from ChatGPT

ChatGPT reaches custom MCP connectors through Developer mode.

Requirements — Custom connectors need a paid ChatGPT plan (Pro, Plus, Business, Enterprise, or Education) on the web app. They are not available on the free tier, so free-tier users won't see an "add connector" option — this is a ChatGPT limitation, not a ProductClank one.

1. In ChatGPT on the web, open Settings → Apps & Connectors → Advanced settings and turn on Developer mode.
2. Back in Apps & Connectors, click Create / Add custom connector.
3. Give it a name (e.g. ProductClank), a short description, and the MCP server URL:

   https://mcp.productclank.com/mcp
   

4. Choose OAuth as the authentication method and connect — it signs you into ProductClank (Google or email) and asks for consent, exactly like Claude.
5. In a chat, enable the ProductClank connector and ask it to boost a post, preview a campaign, or check your balance.

Works in any MCP client that supports remote servers with OAuth (Claude web/desktop, Claude Code, ChatGPT Developer mode, and others).

Tools

Grow — run growth campaigns for a product

Tool	What it does	Cost
search_products	Resolve your ProductClank products to a product_id	free
create_product	List a product from just its website URL (token-free listing, auto-filled)	free
create_campaign	Create a discovery campaign: continuously find relevant posts + draft community replies	10 cr
run_research / get_research	Topic & competitor analysis — the free pre-flight before spending	free
generate_posts	Run discovery: scrape matching posts and draft a reply for each	12 cr/post
list_campaigns / get_campaign / get_posts	Campaign inventory, config + stats, discovered posts & drafts	free
review_posts	AI-score posts against relevancy rules, prune the irrelevant (dry-run billed too)	2 cr/post
regenerate_replies	Redraft selected replies with an edit request	5 cr/reply
get_campaign_activity	What's new since the last check — posts found, replies claimed, live links to what went out	free
get_campaign_results	Spend vs outcomes: the funnel, approval + survival rates, cost per usable reply	free
update_campaign	Merge keywords, enable the discovery sources research found, move the relevance bar, pause/resume, re-aim the platform targeting, change who posts the drafts	free
set_campaign_schedule	Put discovery on a schedule so it keeps finding conversations between sessions. Shows the projected daily cost and requires an explicit yes before enabling	free to set · 12cr per post found
add_delegate	Hand a campaign to a human to manage in the web app	free
boost_post (/mcp only — see Endpoints)	Rally the community to engage a specific post — AI-drafted replies or quote posts at 20 cr per draft (count 1–10, default 10 = 200 cr; quote posts X only — a repost with each member's own text, landing in their followers' feeds), 30 likes, 10 bookmarks (X only) or 10 reposts (300 cr). Auto-detects platform from the URL: X, Instagram, TikTok, LinkedIn, Reddit, Farcaster, YouTube	20 cr/draft or 300 cr

Earn — participate in campaigns for the connected user

Tool	What it does	Cost
find_opportunities	Browse unclaimed reply and quote-post drafts the user can post to earn (likes and reposts need a screenshot and stay in the web app)	free
submit_participation	Submit the posted reply's URL (X, Reddit, YouTube, LinkedIn) — attributed to the user's linked handle for that platform, then points/credits are awarded	earns
find_open_campaigns	Discover content & take-action campaigns the user can join — public ones plus their communities'	free
get_campaign_brief	Read a campaign's full brief: what to create or do, judging criteria, rewards, deadline, remaining allowance	free
submit_campaign_work	Submit the user's work: a content or action-proof URL, a hosted image/video made for the task (media_url — links only, no uploads), and/or a description. X posts are author-verified. Pending → owner review → Stars/points	earns
get_my_submissions	Track submission status + the reviewer's notes	free
get_earnings	The user's participation totals: points, credits, reply stats	free

Content Studio

Tool	What it does	Cost
suggest_content_campaign	AI-drafted preview of a community content campaign (title, description, CTA) + affordability check. Nothing is created	free
create_content_campaign	Launch the content campaign: the community creates posts/threads/videos for your product; submissions and winner selection happen in the web app	1,000 cr
list_content_spaces	List the content spaces you can draft into	free
get_content_workspace	The brand's calibration — voice, platforms, post types, playbook, topic inventory, style guides. Read it before drafting	free
setup_content_space	Turn content on for a brand from an onboarding chat (pair with the setup_content_space prompt): voice, platforms, post types, topics — can create a solo space for the brand. Also updates settings later	free by fields · 5 cr for a pasted brand doc
manage_content_topics	The inventory of aspects the brand talks about: list / add / update / remove / suggest	free
write_content_candidates	Draft up to 25 posts into the space, in the calibrated voice. They are auto-scored by the reviewer and wait in the queue for the user's approval; nothing auto-publishes	free
get_content_queue	The queue as the user sees it: each draft with its score, verdict, and the reviewer's one-line fix	free
revise_content_draft	Approve (stage), drop (discard), edit, or nudge a draft with a one-click preset — shorter, longer, punchier, deeper, simpler, more_specific, less_salesy, more_casual, more_formal — or a typed note; fix / humanize / review	stage · discard · edit free; rewrites & review 2 cr
teach_content_voice	Turn a reaction into a standing rule in the brand's voice KB so every future draft honors it	1 cr

Credits

Tool	What it does	Cost
check_balance	Your credit balance and plan, plus live per-action prices in credits and USD	free
credit_history	Your credit transactions (spend + rewards), newest first	free
report_issue	Report a failing tool or a dead end to the ProductClank team (a human replies)	free
get_support_status	Your reported issues and the team's replies	free

The server also exposes two MCP prompts — grow_product, a ready-made operating procedure for the growth loop, and setup_content_space, the Content Studio onboarding interview (brand → audience → tone → example posts → platforms → post types → topics, then first drafts and the approve / tweak / teach loop) — and a resource — productclank://capabilities, the tool/cost roster — so agents can plan spend before calling anything.

Costly actions are designed to be confirmed with the user first — tool descriptions instruct the model to preview and state the credit cost before spending.

How auth & billing work

The server is an OAuth 2.1 authorization server backed by the ProductClank web app (/connect/mcp login + consent). Every /mcp request requires a valid access token; tools act as the connected user and bill that user's credit balance. Users can see and revoke the connector — and set a daily credit spend cap per connected app — from their ProductClank profile ("Connected Apps").

Communication contract

Tool results are read by an assistant, not by the person paying the credits, so anything the user must know or decide travels in the payload:

• user_note — one or two plain sentences for the assistant to relay.
• decision_offer — a real choice (question + options with what_happens and cost + current + how_to_apply) for the assistant to present, never to answer on the user's behalf.

The main one is distribution: campaigns are created private (drafts wait in the owner's workbench) and the result offers community distribution — the reach the platform exists for — as an explicit, costed choice. Spends get the same treatment: suggest_content_campaign returns the 1000-credit launch as a yes/no, and a review_posts dry run says what it already cost and what the next step actually changes.

Telemetry

The server emits three PostHog events — mcp_connected (OAuth consent completed), mcp_tool_called (every tool, with ok and duration_ms) and mcp_tool_error (failures, with the message) — so the connect → first-call → repeat-use funnel is measurable and refused calls double as roadmap signal. Events are keyed to the user's Supabase auth id where resolvable, so connector activity joins the same PostHog person as their webapp activity. Capture is fire-and-forget and the whole thing no-ops without POSTHOG_API_KEY. See src/lib/analytics.ts; tools are instrumented centrally in src/tools/instrument.ts.

Architecture

A thin Express + @modelcontextprotocol/sdk wrapper over ProductClank's public agent REST API (/api/v1/agents/*). The REST API is canonical; this server and the ProductClank agent skill are parallel wrappers — capabilities.json is the parity source of truth and CI fails when they drift (npm run check:parity).

Claude / MCP client ──▶ mcp.productclank.com/mcp      (profile: full)
Meta Muse directory ──▶ mcp.productclank.com/creator  (profile: creator, no boost_post)
                          │  OAuth 2.1 AS ──▶ productclank.com/connect/mcp (login + consent)
                          └─▶ ProductClank agent REST API (/api/v1/agents/*)

Development

cp .env.example .env   # fill in (see DEPLOYMENT.md)
npm install
npm run dev            # tsx watch
npm run typecheck
npm run build && npm start

See DEPLOYMENT.md for production deployment (Docker / Railway) and CAPABILITIES.md for the tool roadmap.

Operations

When a release depends on new app-repo behavior, deploy the app repo first; tools must degrade gracefully against the older API.

Registry

Published to the official MCP Registry as com.productclank/productclank — see server.json.

Links

• What is ProductClank? · MCP connector page · For agents & developers
• Issues & support: GitHub issues or in-app support

License

MIT