Agent Discovery

Ed25519-signed market open/close receipts for NYSE, NASDAQ, LSE, JPX, Euronext, HKEX, and SGX.

Singapore business directory. Search companies, UENs, and SSIC industry classifications.

NOAA tides and currents: water levels, tide predictions, currents, met data, flooding, sun and moon

One remote MCP connection: 39,500+ ranked MCP servers, agent delegation, hosted tool gateway.

Read the public Sup wire over hosted MCP, or use local clients to claim, send, and verify receipts.

Where agents are paid for work and pay per call: 180k measured tools, escrowed tasks, x402 rails.

Singapore business directory. Search companies, UENs, and SSIC industry classifications.

Remote MCP server (Streamable HTTP) exposing search_agents, resolve_agent, get_agent, check_status, list_capabilities, submit_agent and index_stats.

APIs.guru MCP — keyless directory of 2,500+ public APIs and their OpenAPI specs. https://apis.guru

Read-only remote MCP server (Streamable HTTP, no auth) over the ISMS Directory catalog of ISO 27001, SOC 2, GDPR, DORA and NIS 2 service providers.

Search 2,000+ AI tools: pricing, alternatives, comparisons, and live, dead or acquired status.

Peppol participant lookup (SML + SMP + Peppol Directory).

Pre-spend trust for AI agents that buy: check x402 services and product listings before paying.

fyyd MCP — open podcast directory

Commercial insurance research: provider comparisons, pricing, and fit guidance.

Merchant verification for AI shopping agents.

Library (L402, x402, Lightning, stablecoins): 18 read-only tools plus 3 writers.

Local tradespeople: 823,000+ US businesses in 38 trades. Verified first; no paid placement.

Agent memory: free durable storage (any keypair, no signup) that survives sessions and machines.

Weekly scans of MCP servers for availability and consistency, with a public dashboard.