Spree Commerce: open-source B2B and marketplace ecommerce
Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Description from the maker (original English)
Which online stores AI shopping agents can buy from: guest checkout, pay methods, landed cost.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://klickymart.com/mcpRun this in your terminal
claude mcp add --transport http klickymart https://klickymart.com/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"klickymart": {
"url": "https://klickymart.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"klickymart": {
"type": "http",
"url": "https://klickymart.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://klickymart.com/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
search_merchantsSearch KlickyMart merchant records (same filters as GET /q)
get_recordFetch one merchant record by domain
check_domainCan my agent shop here? Verdict for one domain from the index (reachable, checkout-blocked, agents-not-welcome, blocked-tos, error, not-in-index; see verdict_reason and primary_reason), with checkout depth, pay methods, BTC grade, record time and evidence URL. Never triggers a li
find_offersProduct-level offers KlickyBot observed on store pages (schema.org JSON-LD or Shopify JSON): price, currency, stock, URL, checked_at. Match by gtin (UPC/EAN), mpn, or name words (q). Optional zip adds a landed-cost estimate; live=true also returns a live (uncached) Shopify Catalo
get_landed_priceOne call: a product's landed price at a US ZIP. Searches KlickyMart-observed offers (and, with live=true, the live Shopify Catalog, never stored), and returns for every product: price, stock, url, checked_at, shipping (with source), est. tax with the rate used, est_total ONLY whe
build_experience_noteReturns an UNSIGNED Nostr kind 422 'shopping experience' event template for a store, for you to sign with your own (ideally site-specific) key and publish to your own relays. KlickyMart never signs or publishes for you. Optionally POST the signed event to /reviews (or the submit_
get_checkout_mapCheckout steps our probe reached for a store (stopping at the payment screen, never submitting), the first blocker (bot-wall, http-refusal, network-error, no-product-link, no-add-to-cart, form-gate, login-wall, robots, unclassified, none) and landed-cost signals.
recheck_domainRe-read robots.txt and the home-page status for an indexed store now. Max 1 per store per 10 minutes (else cached result + next_allowed_at), 60 per hour overall.
watch_itemDRAFT (GO D8, not served yet): returns an unsigned kind 420 watch template for price/stock changes. KlickyMart does not act on watches yet and never signs for you.
find_alternativesWhere else can my agent buy this? Give a blocking domain and/or a category (electronics, gift-cards, groceries, apparel, hardware, books, travel, crypto-hardware, other, or a product word like headphones). Product words resolve to a finer sub (headphones -> audio). Returns in-map
find_agent_nativeAgent-native stores: sellers an agent can pay without a browser checkout (L402/x402 paid APIs, VPN, eSIM, VPS, gift cards, nostr-native, agent-commerce). Each item has agent_native {category, label verified-402|claimed, rails, rails_status, probe_402 with price_seen}. verified-40
get_reviewsKind 422 reviews of a merchant (signed claims by pseudonymous keys; not verified by KlickyMart).
submit_reviewSubmit a kind 422 shopping-experience note or review you already signed locally (never send a secret key). Needs a store tag (a=31420: : or r= ) and depth (browse|product|cart|checkout|shipping|payment|paid|delivered; legacy attempt accepted) or rating. Optional: basis (visit|dir
submit_storeSuggest a store KlickyMart has not indexed yet. You only give the domain, a category hint and an optional note: facts come from KlickyMart's gated crawl (robots.txt and ToS first), never from you. Only the bare registrable domain is kept (paths, queries, affiliate/referral parame
wallet_setup_guideNon-custodial wallet setup guide for agents: Nostr key, self-custodial or agent-friendly Lightning options (NWC, Alby Hub, phoenixd, LNbits) with who holds the funds, how to get a lud16 for tips, Cashu wallets and mint risk, plus a checklist. KlickyMart never generates, holds or
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
The registry name was verified against the domain klickymart.com (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 626 ms (HTTP 200)
No sign-in needed
Read 15 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (2026.10.31) reached the registry 8 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
KlickyMart is a public, signed map of online stores for software agents: whether an agent can reach a store, how checkout works, and which payment methods the store accepts, with attention to Bitcoin and privacy-respecting Bitcoin options. Records are published as Nostr events (see NIP-DRAFT.md). A FloppyKit project.
Status: draft. No crawl data is published in this repository yet.
NIP-DRAFT.md: draft event kinds for the directory and payment handshakes.CRAWL-RUBRIC.md: record schema and grading rules (v0.3 draft changes at the end).CASCADE.md: build plan.crawler/: Playwright crawler (crawl.py), deterministic payment extractor (extract.py), terms-of-service checker (tos.py), signing helpers, tests.crawler/KNOWN-LIMITATIONS.md: known limitations.site/bot/index.html: the crawler info and opt-out page, served at https://klickymart.com/bot.site/: KlickyMart web app (Worker, API, dashboard). See site/README.md.Agents should start at https://klickymart.com/llms.txt. MCP endpoint: https://klickymart.com/mcp. It uses a minimal, stateless Streamable HTTP transport: one JSON-RPC message per POST, answered with a single application/json body. It negotiates protocol versions 2024-11-05, 2025-03-26 or 2025-06-18 (tools only). There is no SSE stream and no session ID, and GET /mcp returns 405. Tools: search_merchants, get_record, check_domain. No key needed.
Claude Desktop (claude_desktop_config.json launches stdio servers, so this goes through the mcp-remote bridge, which needs Node.js):
{
"mcpServers": { "klickymart": { "command": "npx", "args": [ "-y", "mcp-remote", "https://klickymart.com/mcp" ] } } }
Cursor (~/.cursor/mcp.json or .cursor/mcp.json):
{
"mcpServers": { "klickymart": { "url": "https://klickymart.com/mcp" } } }
Any Streamable HTTP client:
curl -s https://klickymart.com/mcp -H "Content-Type: application/json" -H "Accept: application/json, text/event-stream" \\
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_domain","arguments":{"domain":"example.com"}}}'
Reviews: anyone can review a merchant with a signed kind 422 event (a tag 31420: : , rating, attempt, optional pay). Submit it with POST /reviews (?dry_run=1 validates without storing) or the MCP tool submit_review, and read reviews with GET /reviews?domain= or get_reviews. Agents should use a fresh keypair dedicated to KlickyMart for pseudonymity and must never send a secret key. Reviews are signed claims; we verify signatures and format, not the opinion. Full guide: /llms.txt and /about#reviews. Spec: NIP-DRAFT.md → "422 as a merchant review".
Plain HTTP: GET /check?domain=example.com answers "can my agent shop here?" from the index only. It never starts a live crawl.
FloppyKitMapBot/0.2 (+https://klickymart.com/bot). No stealth plugins or fingerprint changes, no proxies or IP rotation.Opt out: add User-agent: FloppyKitMapBot / Disallow: / to robots.txt. Details: https://klickymart.com/bot
cd crawler python3 -m venv .venv && . .venv/bin/activate pip install -r requirements.txt && python -m playwright install chromium python -m unittest discover -s tests -v
The tests use synthetic fixtures and make no network requests.
See also site/README.md.