MisarMail MCP Server vs X402 API

A side-by-side look at the MisarMail MCP Server and X402 API MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

MisarMail MCP Server logoMisarMail MCP ServerMarketing · Local subprocess (stdio)Send transactional email, run campaigns, manage contacts and automations, audit deliverability.61GoodAuth: not declaredX402 API logoX402 APIMarketing · Local subprocess (stdio)AI API for marketing, content and outreach. 22 endpoints. Pay with USDC on Base via x402.33EmergingAuth: not declared

Verdict: choose MisarMail MCP Server for marketing work as a local process; choose X402 API for marketing as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

MisarMail MCP Server logoChoose MisarMail MCP Server when

  • You need dedicated capabilities in the Marketing domain.
  • You prefer a local stdio subprocess transport.
  • You have the keys it needs: MISARMAIL_API_KEY, MISARMAIL_BASE_URL.
  • You want tools like send_email, list_emails, get_email.
Explore MisarMail MCP Server

X402 API logoChoose X402 API when

  • You need dedicated capabilities in the Marketing domain.
  • You prefer a local stdio subprocess transport.
Explore X402 API

Feature & specification comparison

Rows where the two servers differ are marked.

SpecMisarMail MCP Server logoMisarMail MCP ServerX402 API logoX402 API
CategoryMarketingMarketing
Quality signal61/100 · Good33/100 · Emerging
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsMISARMAIL_API_KEYMISARMAIL_BASE_URLNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars10
Directory activity 1 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
Tools58Not listed

Tools & capabilities

MisarMail MCP Server tools 58

  • send_emailSend a transactional email from a verified MisarMail account. `from.email` must match an email account you have already verified — use list_domains to check which sender domains are available. Returns the message ID and queue status.
  • list_emailsList emails from a mailbox folder with optional full-text search across subject and body. Use this for reading the unified inbox; use list_campaigns for marketing sends.
  • get_emailRead the full content of a single email by ID, including headers, body, and attachments metadata. Side effect: marks the email as read.
  • reply_to_emailReply to an existing email thread. The sender address and threading headers are derived from the original message, so only the body is required.
  • archive_emailMove an email to the archive folder. Reversible — the message is not deleted.
  • validate_emailValidate an email address before sending: syntax, MX records, disposable-domain and role-account detection. Use this to protect sender reputation on imported lists.
  • list_campaignsList email marketing campaigns with their status, audience size, and headline metrics. Filter by status to find drafts ready to send or campaigns still sending.
  • get_campaignGet full details for one campaign: content, audience segment, schedule, and delivery statistics (sent, opened, clicked, bounced, complained).
  • create_campaignCreate a new email marketing campaign as a draft. Creating never sends or schedules anything — once the content and audience are confirmed, call send_campaign to send it now or schedule it for later.
  • send_campaignSend a campaign now, or schedule it for a future time by passing scheduled_at. This delivers real email to real recipients and cannot be undone once sending starts — confirm the audience with get_campaign first.
  • list_contactsList contacts with their subscription status and engagement metrics. Filter by status to find unsubscribed or bounced addresses that should be excluded from sends.
  • create_contactAdd a single contact. Adding a contact records consent to email them — only add addresses that opted in, or the send will damage sender reputation and may breach CAN-SPAM/GDPR.
  • +46 more on the listing page

X402 API tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

MisarMail MCP Server

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "misarmail-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@misarmail/mcp@latest"
      ],
      "env": {
        "MISARMAIL_API_KEY": "YOUR_MISARMAIL_API_KEY_HERE",
        "MISARMAIL_BASE_URL": "YOUR_MISARMAIL_BASE_URL_HERE"
      }
    }
  }
}

X402 API

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "x402-api-2": {
      "command": "uvx",
      "args": [
        "x402"
      ]
    }
  }
}

Frequently asked questions

MisarMail MCP Server is categorized under Marketing and uses a local stdio subprocess. X402 API belongs to Marketing and uses a local stdio subprocess. Pick MisarMail MCP Server for marketing work and X402 API for marketing.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

MisarMail MCP Server has no declared pricing — check the project's own site. X402 API has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add misarmail-mcp-server and x402-api-2 as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, MisarMail MCP Server has a quality signal of 61/100 (Good) with 1 views, 0 installs and 1 GitHub stars. X402 API has 33/100 (Emerging) with 0 views, 0 installs and 0 GitHub stars.