Neuronto ARD Registry: Agentic Resource Discovery (ARD) Index
Neuronto ARD Registry: one search across every public ARD registry + 200,000+ verified MCP tools
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"agents-tools-search-discovery-ard-registry": {
"url": "https://neuronto.com/mcp"
}
}
}Remote endpoints
https://neuronto.com/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
🟢find_resource(query, kind, limit, federate, payment, ...)
Search for an MCP server, skill, agent, API or other callable capability for a task, across this index and every other public ARD registry at once. Returns ranked matches with a relevance score, the endpoint to connect to, and which registries carry each result. The score is relevance only and is not a trust or safety rating. Filter by payment (free, payable, x402, mpp) and a maximum price per call: terms come from the publisher's manifest or the endpoint's own 402 answer, and the caller pays the provider directly.
Input Schema
{
"type": "object",
"properties": {
"query": {
"type": "string",
"description": "The task, in plain language. For example: 'scrape a website behind cloudflare'."
},
"kind": {
"type": "string",
"enum": [
"any",
"mcp-server",
"skill",
"a2a-agent",
"agent",
"webmcp",
"plugin",
"openapi",
"graphql",
"dataset",
"package",
"doc",
"catalog",
"registry"
],
"description": "Restrict to one family of resource. Matching is normalised, so 'mcp-server' finds them under every media type in circulation, and 'a2a-agent' or 'agent' both reach A2A cards and ACP, OASF and AgentFacts descriptors. 'webmcp' is browser-page tools, which are not callable servers.",
"default": "any"
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 50,
"default": 8
},
"federate": {
"type": "boolean",
"default": true,
"description": "Also query upstream registries live and fuse the rankings. Off is faster."
},
"payment": {
"type": "string",
"enum": [
"any",
"free",
"payable",
"x402",
"mpp",
"card"
],
"default": "any",
"description": "Keep only resources with this payment requirement. 'free' means none is known; 'payable' means a price or a 402 is known."
},
"max_price_per_call": {
"type": "number",
"minimum": 0,
"description": "Most you will pay for one call, in US dollars. A resource whose price is unknown is excluded."
},
"network": {
"type": "string",
"description": "Payment network, for example base, solana, tempo or stripe."
}
},
"required": [
"query"
]
}🟢find_tool(query, limit, with_schema)
Search individual MCP tools by name and behaviour, not the servers that host them. Every tool returned here was read back from a live server's tools/list, so the name and input schema are what the server actually exposes rather than what its description claims. Use this when you know the shape of the call you need; use find_resource when you are looking for a service.
Input Schema
{
"type": "object",
"properties": {
"query": {
"type": "string",
"description": "What the tool should do. For example: 'extract text from a pdf'."
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 50,
"default": 10
},
"with_schema": {
"type": "boolean",
"default": false,
"description": "Include each tool's full JSON input schema. Verbose; off by default."
}
},
"required": [
"query"
]
}🟡publish_resource(endpoint, domain)
List an MCP server or an ARD-publishing domain in this index so other agents can discover it. Give `endpoint` for an MCP server URL, or `domain` for a site that serves an ARD manifest. The submission is verified before it is indexed: an endpoint must complete an MCP initialize handshake, and a domain must serve a manifest that parses. Nothing is taken on trust, so a listing that succeeds here is one an agent can actually call.
Input Schema
{
"type": "object",
"properties": {
"endpoint": {
"type": "string",
"description": "Absolute URL of an MCP server, e.g. https://example.com/mcp"
},
"domain": {
"type": "string",
"description": "A domain serving /.well-known/ard.json, e.g. example.com"
}
}
}🟢registry_stats
How large this index is, what it holds, how much of it has been verified by introspection, and which upstream registries are federated.
Input Schema
{
"type": "object",
"properties": {}
}Community
Evidence