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Federated listings from personal humanMCP servers. Search offers, trades by humans.
About
Federated listings from personal humanMCP servers. Search offers, trades by humans.
Remote endpoints: streamable-http: https://marketplace.humanmcp.net/mcp
Security Report
10.0
Low Risk10.0Low RiskValid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
3 tools verified · Open access · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"io-github-kapoost-humanmcp-marketplace": {
"url": "https://marketplace.humanmcp.net/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
humanMCP Marketplace
A federated listings board across personal humanMCP servers. No accounts. No algorithms. Just humans and their offers.
Live: https://marketplace.humanmcp.net
MCP endpoint: POST https://marketplace.humanmcp.net/mcp
What it does
Every human can run their own humanMCP server — publishing listings, offers, and trades. The marketplace crawls these servers and builds a single searchable index of listings.
Think of it as a town square where every stall is independently owned. The marketplace doesn't host content — it indexes and links back to the origin.
Connect an agent
{
"mcpServers": {
"humanmcp-marketplace": {
"type": "http",
"url": "https://marketplace.humanmcp.net/mcp"
}
}
}
MCP Tools
| Tool | Description |
|---|---|
search_marketplace | Search listings across all servers — offers, trades, services |
list_servers | All registered humanMCP instances |
get_server | Server detail |
REST API
GET /servers → list all registered servers
GET /servers/{domain} → server detail
GET /search?q={query} → full-text search across all listings
GET /search?q=bread&type=trade → filter by listing type
GET /feed → recent listings feed (JSON)
POST /register → register a humanMCP instance
POST /mcp → MCP JSON-RPC 2.0 endpoint
Agent discovery
GET /.well-known/agent.json → agent profile card
GET /openapi.json → OpenAPI 3.1 spec
GET /healthz → status + server/listing counts
Web UI
GET / → homepage — listings + servers
GET /q?q={query} → search results
GET /s/{domain} → server page
Keyboard shortcuts: / search, j/k navigate, Enter open, d theme, ? help.
Register your server
Any humanMCP instance can join. No account needed — just your domain:
curl -X POST https://marketplace.humanmcp.net/register \
-H "Content-Type: application/json" \
-d '{"domain": "yourname-humanmcp.fly.dev"}'
The marketplace will:
- Verify it's a real humanMCP (fetches
/.well-known/agent.json) - Index all listings from
/listings/feed.json - Add to crawl schedule (every 6 hours)
Requirements: your server must expose /.well-known/agent.json and /listings/feed.json.
How crawling works
Your humanMCP server
↓
Marketplace fetches /.well-known/agent.json (identity)
↓
Fetches /api/profile (author name, bio, tags)
↓
Fetches /listings/feed.json (listings)
↓
Indexes in SQLite + FTS5
↓
Searchable within minutes, re-crawled every 6 hours
Listings stay on your server. Marketplace keeps a search index only.
Configuration
| Source | Name | Default | Description |
|---|---|---|---|
| env | PORT | 8080 | Listen port |
| env | DB_PATH | ./marketplace.db | SQLite database path |
| env | SEED_SERVER | — | Domain to crawl on startup |
| flag | --addr | :8080 | Listen address |
| flag | --db | ./marketplace.db | Database path |
| flag | --seed | — | Seed server domain |
| flag | --crawl-interval | 6h | Re-crawl interval |
Stack
- Go (stdlib +
modernc.org/sqlite) - SQLite + FTS5 for full-text search
- Fly.io single machine, 256MB
- No JS framework — server-rendered HTML with keyboard navigation
Run locally
go build -o marketplace ./cmd/server/
./marketplace --seed kapoost.humanmcp.net
# open http://localhost:8080
Deploy
fly apps create humanmcp-marketplace
fly volumes create marketplace_data --size 1 --region ams
fly deploy
Key principles
- Listings only — marketplace indexes offers, trades, services
- No content hosting — index + link back, always
- Attribution — author server visible on every result
- Opt-in — register voluntarily
- Federated — anyone can run their own marketplace instance
- Open protocol — humanMCP REST API is the standard
Creative content (poems, essays, images) belongs on the author's server. A separate discovery service for that is planned.
License
MIT
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