Developer tools · postmarkapp.com

Postmark

Transactional email delivery service. Agents can search docs, get pricing for a monthly volume and list Postmark agent skills.

Ask an agent to

  • Find Postmark docs on processing inbound email
  • Get the monthly price for sending 100,000 emails
  • List Postmark agent skills for managing templates

3 tools

When we loaded postmarkapp.com again on Oct 24, 2026, it registered these through navigator.modelContext or provideContext(), from earlier WebMCP drafts. Chrome 154 only offers document.modelContext, so Chrome’s own agent support does not see them.

  • get_postmark_pricing

    Get Postmark's published pricing. Given a monthly email volume, returns the monthly price of each plan at the tier that covers it, plus every tier for comparison. Prices only — this does not read or change any account.

    monthlyEmailVolume: integer?

  • list_postmark_agent_skills

    List the Postmark Agent Skills published at this origin — installable instructions for sending email, processing inbound email, managing templates, handling webhooks and email best practices. Returns each skill's…

  • search_postmark_docs

    Search Postmark's documentation, developer reference, guides and help articles. Returns matching page titles, URLs, categories and excerpts. Use this to find how a Postmark feature works or which API endpoint to call…

    query: string, limit: integer?

Tools
3
Registered with
JavaScript
Older API
navigator.modelContext
Tranco rank
#22,178
Scan finished
Oct 19, 2026

Tool names and descriptions are what postmarkapp.com/ registered when we loaded it in Chrome 154 on Browser Use Cloud. The summary and the “ask an agent” lines are AI-written from them. To call the tools yourself, see Chrome’s WebMCP docs. How we found it.

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