# Mailchimp MCP by usefulapi (io.usefulapi/mailchimp): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.usefulapi%2Fmailchimp/versions/latest)
- Connected to: https://mailchimp.usefulapi.io/mcp
- Homepage: https://usefulapi.io/mailchimp/
- Repository: https://github.com/m190/usefulapi-mcp
- Scoring rules: v2
- Tools: 18
- Average: 50.4 / 100 (Cloudy)
- Near-identical pairs: 0

This page shows how Mailchimp MCP by usefulapi (io.usefulapi/mailchimp)'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

- `mailchimp_get_audience`: 42 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_get_campaign`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: campaign_id.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_get_campaign_report`: 42 / 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: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_update_member`: 48 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_search_members`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
- `mailchimp_get_member`: 50 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_list_campaigns`: 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.
- `mailchimp_list_member_tags`: 50 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_list_segments`: 50 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_list_templates`: 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.
- `mailchimp_get_account`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `mailchimp_list_automations`: 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.
- `mailchimp_list_members`: 52 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_list_reports`: 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.
- `mailchimp_add_member`: 54 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_list_audiences`: 54 / 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.
- `mailchimp_archive_member`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: list_id. Name the tool or the place that returns it, or models look it up first.
- `mailchimp_add_member_tags`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: list_id. Name the tool or the place that returns it, or models look it up first.

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