# Buttondown MCP by usefulapi (io.usefulapi/buttondown): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.usefulapi%2Fbuttondown/versions/latest)
- Connected to: https://buttondown.usefulapi.io/mcp
- Homepage: https://usefulapi.io/buttondown/
- Repository: https://github.com/m190/usefulapi-mcp
- Scoring rules: v2
- Tools: 25
- Average: 48.3 / 100 (Cloudy)
- Near-identical pairs: 1

This page shows how Buttondown MCP by usefulapi (io.usefulapi/buttondown)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

## Across the server

No server-wide issues.

## Tools

- `buttondown_list_segments`: 40 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_get_automation_analytics`: 41 / 100
  - Major: The description only restates the name (9 words).
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: automation_id. Name the tool or the place that returns it, or models look it up first.
- `buttondown_get_subscriber`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `buttondown_get_tag_analytics`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `buttondown_list_events`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
- `buttondown_list_forms`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_list_snippets`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_list_survey_responses`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
- `buttondown_list_tags`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_get_account`: 46 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `buttondown_list_emails`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_list_surveys`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `buttondown_add_subscriber`: 49 / 100
  - Minor: Arguments without a description: utm_source, utm_medium, utm_campaign.
  - Minor: Says nothing about what it returns.
- `buttondown_get_automation`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: automation_id. Name the tool or the place that returns it, or models look it up first.
- `buttondown_get_email`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: email_id. Name the tool or the place that returns it, or models look it up first.
- `buttondown_get_email_analytics`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: email_id. Name the tool or the place that returns it, or models look it up first.
- `buttondown_get_newsletter`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: newsletter_id. Name the tool or the place that returns it, or models look it up first.
- `buttondown_update_email_draft`: 49 / 100
  - Major: Arguments without a description: subject, description, slug, canonical_url, image.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: email_id. Name the tool or the place that returns it, or models look it up first.
- `buttondown_list_automations`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_list_newsletters`: 52 / 100
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_list_subscribers`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_list_webhooks`: 52 / 100
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `buttondown_create_tag`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `buttondown_update_subscriber`: 58 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `buttondown_create_email_draft`: 65 / 100
  - Minor: Says nothing about what it returns.

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