AgentNexus.app

Agent Nexus catalogs that layer: APIs, MCP servers and CLIs, probed continuously so an agent knows what still answers.

Documentation

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.

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

Operated by BrainPath.io · support@agentnexus.app