StealthStack ARD Discovery

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ai.stealthstack/discoveryv0.2.0 Domain verified

Search a public index of agents, MCP servers and skills found on the open web. Free, no auth.

AI & Agents

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https://stealthstack.ai/mcp?src=mcpregistry

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

get_resource

Get the full record for one discovered ARD resource by its identifier (URN), as returned by search_resources / list_resources. Includes the connect URL when the publisher provides one; otherwise the inline connection or pull details. Also returns type, publisher, version, trust, source, description, tags, and example queries.

identifierstring, required

The resource URN, e.g. urn:air:stealthstack.ai:skill:parquet (urn:ai: and urn:air: are both accepted).

Tools (3)

get_resource

read-only

Argument	Type	Description
identifier*	string	The resource URN, e.g. urn:air:stealthstack.ai:skill:parquet (urn:ai: and urn:air: are both accepted).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "identifier"
  ],
  "properties": {
    "identifier": {
      "type": "string",
      "description": "The resource URN, e.g. urn:air:stealthstack.ai:skill:parquet (urn:ai: and urn:air: are both accepted)."
    }
  }
}

list_resources

Browse the StealthStack ARD index — agentic resources (agents, MCP servers, skills, catalogs) discovered across the open web. Optionally filter by kind, domain, trust, or accepted payment protocol (paid=x402). Returns a count, a kind breakdown, and the page of resources, each with its connect URL when the publisher provides one; otherwise the inline connection or pull details. Use search_resources for a specific need.

read-only

Argument	Type	Description
kind	string	Restrict to one resource kind.
paid	string	Only services that list this payment protocol (x402: pay-per-request in stablecoins). A filter, never a ranking.
limit	integer	Max results (1-50).
trust	string	Restrict by trust status.
domain	string	Restrict to one publisher domain (e.g. stealthstack.ai).

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "kind": {
      "enum": [
        "agent",
        "mcp",
        "skill",
        "catalog",
        "registry",
        "api",
        "other"
      ],
      "type": "string",
      "description": "Restrict to one resource kind."
    },
    "paid": {
      "enum": [
        "x402"
      ],
      "type": "string",
      "description": "Only services that list this payment protocol (x402: pay-per-request in stablecoins). A filter, never a ranking."
    },
    "limit": {
      "type": "integer",
      "default": 25,
      "description": "Max results (1-50)."
    },
    "trust": {
      "enum": [
        "verified",
        "unverified"
      ],
      "type": "string",
      "description": "Restrict by trust status."
    },
    "domain": {
      "type": "string",
      "description": "Restrict to one publisher domain (e.g. stealthstack.ai)."
    }
  }
}

search_resources

Search the StealthStack ARD index for agentic resources (agents, MCP servers, skills, catalogs) discovered across the open web. Free-text query over name/description/tags, ranked by the index's relevance score (best match first). Optionally filter by kind, domain, trust, or accepted payment protocol (paid=x402). Each result includes the connect URL when the publisher provides one; otherwise the inline connection or pull details.

read-only

Argument	Type	Description
kind	string	Restrict to one resource kind.
paid	string	Only services that list this payment protocol (x402: pay-per-request in stablecoins). A filter, never a ranking.
limit	integer	Max results (1-50).
query*	string	Free-text search over name, description, and tags.
trust	string	verified = the resource's URN authority matches its catalog host (domain-anchored).
domain	string	Restrict to one publisher domain (e.g. stealthstack.ai).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "kind": {
      "enum": [
        "agent",
        "mcp",
        "skill",
        "catalog",
        "registry",
        "api",
        "other"
      ],
      "type": "string",
      "description": "Restrict to one resource kind."
    },
    "paid": {
      "enum": [
        "x402"
      ],
      "type": "string",
      "description": "Only services that list this payment protocol (x402: pay-per-request in stablecoins). A filter, never a ranking."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "description": "Max results (1-50)."
    },
    "query": {
      "type": "string",
      "description": "Free-text search over name, description, and tags."
    },
    "trust": {
      "enum": [
        "verified",
        "unverified"
      ],
      "type": "string",
      "description": "verified = the resource's URN authority matches its catalog host (domain-anchored)."
    },
    "domain": {
      "type": "string",
      "description": "Restrict to one publisher domain (e.g. stealthstack.ai)."
    }
  }
}