# MailerAstro

> Use this tool when you need to send automated transactional emails without requiring API keys, and pay for messages using cryptocurrency. MailerAstro solves the problem of secure and reliable email delivery by utilizing blockchain-based authentication and monitoring deliverability and sender reputation. It takes a wallet address and email content as input and outputs sent emails with automated payment in USDC.

Canonical page: https://skillsregistry.net/skills/mailerastro-agentemail-api  
JSON: https://api.skillsregistry.net/v1/skills/mailerastro-agentemail-api

## Description

Send transactional emails using a wallet address with no API keys required. Pay automatically for messages using USDC while monitoring deliverability and sender reputation. Automate individual or batch email communications with simplified blockchain-based authentication.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-05-11

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/mailerastro/agentemail-api)

## 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": "mailerastro-agentemail-api"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/mailerastro-agentemail-api` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/mailerastro-agentemail-api/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