Add: MarketNow MCP Server — trust verification for MCP ecosystems

[alicelabsllc]

What

MarketNow MCP Server — an MCP server that provides trust verification capabilities to AI agents.

• Repo: https://github.com/alicelabs-llc/universal-trust-adapter
• NPM: marketnow-mcp (v1.10.1, 1,154 monthly downloads)
• API: https://www.marketnow.site/api/trust

What it does

The MarketNow MCP server exposes UTA (Universal Trust Adapter) as an MCP tool. Agents can call it to verify credentials in 8 formats:

1. ATC v3 (Agent Trust Card)
2. JWT (with x5c chain)
3. W3C Verifiable Credentials
4. A2A (Agent-to-Agent) cards
5. EAT-AI (Entity Attestation Tokens)
6. ZTA (Zero Trust Agent) cards
7. MCP Server Cards
8. X.509 certificates

Through a 12-stage pipeline: PARSER → DETECT → SCHEMA → CRYPTO → ISSUER → KEY_BINDING → POP → PROVENANCE → LIFECYCLE → EVIDENCE → POLICY → DECISION

MCP tools exposed

• verify_credential — verify any credential, auto-detect format
• translate_credential — translate between formats (e.g., JWT → W3C VC)
• issue_credential — issue an ATC v3 card
• bridge_credential — verify in ecosystem A, issue in B
• list_formats — list supported formats

Stats

• 6,744 verifications/sec (single core)
• 480+ tests
• 23 conformance vectors
• Public API: https://www.marketnow.site/api/trust

Suggested entry

- [MarketNow MCP Server](https://github.com/alicelabs-llc/universal-trust-adapter) - Trust verification for AI agents. Verifies credentials in 8 formats (ATC, JWT, W3C VC, A2A, EAT-AI, ZTA, MCP, X.509) through a 12-stage pipeline.

Happy to open a PR.