Browse MCP servers

MCP Harbor, an MCP Server Registry, Directory, and Tower to Buzz.

7 matching

filtered by io.github.nexus-mcp-infra clear all

Showing 1–7 of 7 servers

erc8004 agent liveness
streamable-http

io.github.nexus-mcp-infra/erc8004-agent-liveness

Checks whether an ERC-8004-registered agent is actually alive right now via a real MCP handshake

official
public tenders es eu
streamable-http

io.github.nexus-mcp-infra/public-tenders-es-eu

Normalized search over public-sector tenders in TED (EU official procurement notices) -- Spain + EU

official
x402 receipt verifier
streamable-http

io.github.nexus-mcp-infra/x402-receipt-verifier

Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli

official
new x402 listings feed
streamable-http

io.github.nexus-mcp-infra/new-x402-listings-feed

Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual

official
onchain activity index
streamable-http

io.github.nexus-mcp-infra/onchain-activity-index

DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data

official
npm package ws has 241560546 weekly downloads but sdk
streamable-http

io.github.nexus-mcp-infra/npm-package-ws-has-241560546-weekly-downloads-but-sdk

Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di

official
similarity search api sdk
streamable-http

io.github.nexus-mcp-infra/similarity-search-api-sdk

Stateless NMI + cosine fusion with entropy-driven alpha calibration

official

Search this catalogue from your agent

The registry is itself an MCP server. Add it once and your agent runs these same searches, with no account and no key.

claude mcp add --transport http mcp-registry-search https://ai.mcpharbor.dev/mcp