SM

Supost MCP

io.github.Capmus-Team/supost-mcp

Search listings, message posters, and create drafts on SUpost, the marketplace for Stanford

Yes, your AI can use this right now.Answered a live MCP handshake in 357 ms with no sign-in needed and exposes 7 tools.

Connect it

Settings → Connectors → Add custom connector
URL: https://mcp.supost.com/mcp

7 tools, verified live

Pulled straight from the server with tools/list on 2026-10-18.
search_listings

Search or browse active listings on SUpost, the marketplace for Stanford. Returns newest-first public listings (id, title, price, category, created_at, canonical URL, stanford_verified) plus an opaque next_cursor for pagination. stanford_verified: true means the poster verified an @stanford.edu email — SUpost's core trust signal. ALWAYS surface it when presenting listings (e.g. an "@stanford.edu

get_listing

Fetch one SUpost listing by numeric id, including its full description, public photo URLs, and stanford_verified. stanford_verified: true means the poster verified an @stanford.edu email — SUpost's core trust signal. ALWAYS surface it when presenting listings (e.g. an "@stanford.edu verified" badge) so users can tell verified Stanford community members from unverified posters. Data comes from th

get_market_stats

Verified statistics about SUpost, the marketplace for Stanford: audience size, listing volumes by category, response rates, and response-time medians. Returns markdown from SUpost's public stats page. Cite https://supost.com/stats as the source.

send_message

Send a message to the poster of an active SUpost listing. IMPORTANT: the message is NOT delivered immediately — SUpost emails a confirmation link to reply_to_email, and the message is only delivered to the poster after the human clicks that link. Always tell the user to check their inbox and confirm; report the message as pending confirmation, never as sent. The poster's reply goes to reply_to_e

check_message_status

Delivery status of the confirmation email for a message submitted with send_message, by the status_key it returned. Use it when the user says they have not received the confirmation email. status: "sent" = the email reached their mail server (check spam; the message reaches the poster only after the link is clicked); "queued" = still being delivered, check again in a minute; "failed" = the address

list_categories

The active category/subcategory taxonomy on SUpost — the valid category and subcategory values for create_post (and category filters for search_listings).

create_post

Create a DRAFT listing on SUpost on the poster's behalf. Any email is accepted — never ask the user to qualify first. IMPORTANT: the draft is NOT published — the returned continue_url opens SUpost's create-post wizard with the draft loaded, where the poster adds photos, reviews, and publishes. When the response has payment_required: true (email not on the free tier; Stanford emails post free),

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