# Validity Everest

> Use this tool when you need to assess email deliverability across multiple domains and subdomains, solving problems of email campaign optimization and domain reputation management. It provides aggregate queries, subdomain-only queries, and batch queries, accepting an Everest API key as input and returning deliverability data via streamable HTTP transport. Ideal for use cases requiring bulk email deliverability analysis and optimization, such as email marketing campaigns and domain management.

Canonical page: https://skillsregistry.net/skills/huangzihang89-validity-everest  
JSON: https://api.skillsregistry.net/v1/skills/huangzihang89-validity-everest

## Description

Provides three tools for querying the Validity Everest email deliverability API: full-domain aggregate queries, subdomain-only queries with cross-TLD filtering, and batch queries supporting both modes. Requires an Everest API key and supports streamable HTTP transport. Built as a lightweight Python wrapper around the Everest API v2.0 endpoint.

## Trust

- **Trust score (0–1):** 0.95
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-09-28

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/huangzihang89-validity-everest)
- **Repository:** <https://github.com/huangzihang89/everest-mcp-server>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "huangzihang89-validity-everest"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/huangzihang89-validity-everest` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/huangzihang89-validity-everest/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt