nft-marketplace-mcpSAFE
Browse the three.ws agent marketplace and skills catalog from any AI agent. browse_agents and browse_skills search & page the public listings; agent_detail and the category tools round out discovery. Read-only — no key, no signer, no payment.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
@three-ws/marketplace-mcp
Browse the three.ws agent marketplace and skills catalog from any AI agent.
A Model Context Protocol server that gives any AI assistant browse and discovery of the three.ws marketplace over stdio. Search and page the published agents, drill into one by id, and explore the reusable skills catalog — all from the public three.ws API.
No API key, no signer, no payment — every call hits the public /api/marketplace and /api/skills endpoints. Creating or publishing agents and skills is the authenticated write path on the HTTP API; this server exposes browse/discovery only.
Install
npm install @three-ws/marketplace-mcp
Or run with npx (no install):
npx @three-ws/marketplace-mcp
Quick start
Claude Code, one line:
claude mcp add marketplace -- npx -y @three-ws/marketplace-mcp
Claude Desktop / Cursor (claude_desktop_config.json or mcp.json):
{
"mcpServers": {
"marketplace": {
"command": "npx",
"args": ["-y", "@three-ws/marketplace-m2b638618dc7eOBSERVED · 2026-10-10Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add marketplace-mcp -- npx -y @three-ws/[email protected]
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- declared (1 observation(s))
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (3)
.nojekyll
@modelcontextprotocol/sdk, zod
Gates applied: no_behavioural_pass.
2b638618dc7efull audit observations/trust-audit/mcp-server/nirholas__nft-marketplace-mcp.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-10 | 2b638618dc7e | SAFE | B | 89 | first audit |
Questions
What is the nft-marketplace-mcp MCP server?
Browse the three.ws agent marketplace and skills catalog from any AI agent. browse_agents and browse_skills search & page the public listings; agent_detail and the category tools round out discovery. Read-only — no key, no signer, no payment.
Is nft-marketplace-mcp safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does nft-marketplace-mcp need?
No credential environment variables were found in its source, so it appears to need none.
How does nft-marketplace-mcp run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as @three-ws/marketplace-mcp at 0.1.3.
How current is this page?
The grade is for one exact copy of the source (2b638618dc7e), read on 2026-10-10. The repository is watched and re-audited when it changes.