53ON MCP

An official MCP server for 53ON that allows AI agents to search for local businesses and professionals by service or location, and retrieve detailed business information including services, ratings, and product catalogs without needing to parse HTML.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by 53ON

MCP endpoint (Streamable HTTP)

https://53on.com/mcp

Vendor documentation

What its tools do

2 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

2 of 2 have a description · 2 of 2 declare behavior hints · 2 of 2 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 6, 2026, 1:47 PM UTC
Passed Official MCP Registry namespace is tied to 53on.com · Nov 6, 2026, 1:23 PM UTC
Passed Endpoint is on the registry namespace domain · Nov 6, 2026, 1:23 PM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Find local businesses by service and location
Retrieve detailed business profiles and ratings
Access product catalogs and pricing information
Get booking URLs for user checkout

Source and maintenance

Vendor evidenceRegistry 1.0.0

mcp-registry: com.53on/directory@1.0.0

Protocol and capabilities

Server: 53ON 1.0.0
MCP protocol negotiated in check: 2025-11-25
Tools: 2 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

53ON is a directory and marketplace of local businesses and independent professionals. Use search_providers to find who does the job, then get_business for prices and the link where the user requests a quote and pays.

Tools

2 advertised

search_providers

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Find local businesses and independent professionals on 53ON by what they do. Accepts free text in Spanish or English and resolves synonyms, so "plumber" and "destapar caneria" both work. Pass lat and lng to limit results to that area; without them the search is nationwide. Call with an empty query to get the list of services 53ON covers.

search_providers input schema

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude of the user. Optional."
    },
    "lng": {
      "type": "number",
      "description": "Longitude of the user. Optional."
    },
    "lang": {
      "enum": [
        "es",
        "en"
      ],
      "type": "string",
      "description": "Language of the query. Default es."
    },
    "limit": {
      "type": "integer",
      "description": "Max results, 1 to 50. Default 10."
    },
    "query": {
      "type": "string",
      "description": "What the user needs, in their own words. Empty returns the service list."
    }
  }
}

search_providers annotations

{
  "title": "Find local businesses",
  "readOnlyHint": true,
  "openWorldHint": true
}

get_business

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Full public detail of one 53ON business by its slug: services, ratings, product catalog with prices, and the link where the user can request a quote and pay. Use the slug returned by search_providers.

get_business input schema

{
  "type": "object",
  "required": [
    "slug"
  ],
  "properties": {
    "lang": {
      "enum": [
        "es",
        "en"
      ],
      "type": "string",
      "description": "Language for service names. Default es."
    },
    "slug": {
      "type": "string",
      "description": "Public slug of the business, for example creacionlaura."
    }
  }
}

get_business annotations

{
  "title": "Get business details",
  "readOnlyHint": true,
  "openWorldHint": true
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (2 of 2 answered).

2026-11-06: 1 of 1 checks answered
2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 454 ms
95th percentile latency: 454 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 6, 2026, 1:47 PM UTC · probe · passed · 454 ms · metadata changed · 2 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http 53on-mcp https://53on.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add 53on-mcp --url https://53on.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable 53on-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "53on-mcp": {
      "url": "https://53on.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "53on-mcp": {
      "type": "streamableHttp",
      "url": "https://53on.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start 53on-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "53on-mcp": {
      "type": "http",
      "url": "https://53on.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http 53on-mcp https://53on.com/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://53on.com/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "53on-mcp": {
      "serverUrl": "https://53on.com/mcp"
    }
  }
}

Let your agent find its tools

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