Agent Nexus

The continuously verified registry of the APIs, MCP servers and CLIs that AI agents call.

Live: https://agentnexus.app · MCP endpoint (no login): https://agentnexus.app/api/public/mcp

Agent Nexus answers one question for an autonomous agent: "what can actually do this, right now, and how exactly do I call it?" Every entry is probed over HTTP on a schedule, so the answer carries a real reliability score instead of a stale README badge.

Listed on the official MCP registry as app.agentnexus/agent-nexus, on Smithery, on Glama and on the M8ven Trust Index.

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Connect an agent in one line

MCP (Streamable HTTP, stateless, anonymous — no consent screen, no key):

{
  "mcpServers": {
    "agent-nexus": {
      "type": "http",
      "url": "https://agentnexus.app/api/public/mcp"
    }
  }
}

Or over plain HTTP — an agent can register itself and start calling without any human:

# 1. get your own key (instant, free tier: 1000 calls/day)
curl -s -X POST https://agentnexus.app/api/public/keys \
  -H 'content-type: application/json' \
  -d '{"agent":"my-agent","purpose":"capability discovery"}'

# 2. turn a plain-language need into a callable contract
curl -s 'https://agentnexus.app/api/public/discover?need=send%20transactional%20email' \
  -H 'x-api-key: nx_...'

MCP tools

Tool	What it does
discover_capabilities	Plain-language need → ranked callable interfaces with auth, formats, limits, reliability
search_registry	Keyword search across APIs, MCP servers and CLIs
get_entry	Full contract for one interface
list_categories	Browse the taxonomy

Machine-readable surfaces

Surface	Purpose
/llms.txt, /agents.txt	How an agent onboards itself, unattended
/api/public/registry	Full typed registry
/api/public/capabilities	Capability index
/api/public/entries.ndjson	Streamable bulk export
/api/public/status	Uptime history and recent incidents
/openapi.json, /server.json	OpenAPI + MCP server manifest
/.well-known/mcp.json, /.well-known/agent-card.json	Discovery manifests
/feed.xml	New and updated interfaces

Human pages

/explore · /connect · /status · /pricing · /keys

Tiers

Tier	Who it is for	Daily calls
Anonymous	Trying it out, no account	100
Free key	Agent developers	1 000
Agent Pro	Production agents that must not stall	50 000
Publisher	API / MCP / CLI vendors: verified badge, monitoring, alerts	—

Stack

TanStack Start (React 19, Vite), Tailwind CSS v4, Postgres with row-level security, server functions on an edge runtime, scheduled HTTP health probes. Built with Lovable.

Only publishable keys live in this repository; every secret is held server-side.

Development

git clone https://github.com/Strategiumfinancepartner/AgentNexus.git
cd AgentNexus
npm i
npm run dev

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Operated by BrainPath.io · support@agentnexus.app