Marketplace MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 62 installs a week from npm. Last commit 15 Jun 2026.
Publish Nostr marketplace listings (NIP-15 + Shopstr kinds 30019/30402) so agents can run a store.
Today is the operative word: we check Marketplace MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add marketplace-mcp -- npx -y marketplace-mcp
{
"mcpServers": {
"marketplace-mcp": {
"args": [
"-y",
"marketplace-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.marketplace-mcp]
command = "npx"
args = ["-y", "marketplace-mcp"]
{
"mcpServers": {
"marketplace-mcp": {
"args": [
"-y",
"marketplace-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"marketplace-mcp": {
"args": [
"-y",
"marketplace-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
NOSTR_RELAYS (Comma-separated wss:// relay URLs), NOSTR_NIP46_URI (NIP-46 bunker URI (preferred signer)), NOSTR_PRIVATE_KEY (nsec private key (alternative to NOSTR_NIP46_URI)), SHOPSTR_CACHE_ENABLED (Set true to POST Shopstr-dialect events to the Shopstr cache after relay publish).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.