Postio — UK Address, Postcode, Email & Phone Validation

Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR.

What does this entry provide?

Postio — UK Address, Postcode, Email & Phone Validation is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Postio — UK Address, Postcode, Email & Phone Validation to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 78/100
Install method: npm
Repo: postio-uk/postio-integrations
Repo updated: Oct 23, 2026

Install command

npx -y @postio/mcp@0.1.5

Install method: npm

Review the upstream source before running this command.

GitHub project Homepage

Quality

Repo stars

Repo updated

Oct 23, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-23T10:09:00.302763Z",
      "publishedAt": "2026-10-23T10:09:00.302763Z",
      "statusChangedAt": "2026-10-23T10:09:00.302763Z"
    }
  },
  "server": {
    "name": "uk.co.postio/postcode-address-validation",
    "icons": [
      {
        "src": "https://postio.co.uk/assets/logo-mark-512.png",
        "sizes": [
          "512x512"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "Postio — UK Address, Postcode, Email & Phone Validation",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.1.5",
    "packages": [
      {
        "version": "0.1.5",
        "transport": {
          "type": "stdio"
        },
        "identifier": "@postio/mcp",
        "runtimeHint": "npx",
        "registryType": "npm",
        "registryBaseUrl": "https://registry.npmjs.org",
        "environmentVariables": [
          {
            "name": "POSTIO_API_KEY",
            "format": "string",
            "isSecret": true,
            "isRequired": true,
            "description": "Postio API key (pk_…). Free key, first 100 lookups on us, no card: https://postio.co.uk/signup"
          },
          {
            "name": "POSTIO_BASE_URL",
            "format": "string",
            "description": "Override the API base URL. Defaults to https://api.postio.co.uk/v1 (include /v1). Only needed for staging."
          }
        ]
      }
    ],
    "repository": {
      "id": "1226246873",
      "url": "https://github.com/postio-uk/postio-integrations",
      "source": "github",
      "subfolder": "packages/mcp"
    },
    "websiteUrl": "https://postio.co.uk/integrations/mcp",
    "description": "Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR."
  }
}

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