Moosend MCP by usefulapi: tool descriptions scored io.usefulapi/moosend

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://moosend.usefulapi.io/mcp
Homepage: usefulapi.io/moosend/
Repository: github.com/m190/usefulapi-mcp
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how Moosend MCP by usefulapi (io.usefulapi/moosend)'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.

servers/io.usefulapi/moosend

Average score: 50.5 / 100Cloudy
Tools: 20
Near-identical descriptions: 2

Across the server

Tools whose descriptions are nearly the same

2 of 2 pairs shown, highest description similarity first.
Tool	Tool	Description similarity	Name similarity
moosend_list_subscribers	moosend_get_subscriber_by_email	0.68	0.14
moosend_get_segment	moosend_list_segment_subscribers	0.61	0.40

Tools

moosend_get_campaign_activity_by_location

44 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
Minor
The name is long (41 characters).long_name
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.id_source_missing

moosend_get_campaign_link_activity

47 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
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.id_source_missing

moosend_get_segment

47 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Its description is nearly the same as moosend_list_segment_subscribers's (similarity 0.61); only the names and schemas tell them apart. Say in this description when to use moosend_list_segment_subscribers instead.confusable_pair
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id, segment_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_get_subscriber

47 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id, subscriber_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_get_subscriber_by_email

47 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Its description is nearly the same as moosend_list_subscribers's (similarity 0.68); only the names and schemas tell them apart. Say in this description when to use moosend_list_subscribers instead.confusable_pair
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_list_campaigns

47 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

moosend_list_mailing_lists

47 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

moosend_list_segment_subscribers

47 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Its description is nearly the same as moosend_get_segment's (similarity 0.61); only the names and schemas tell them apart. Say in this description when to use moosend_get_segment instead.confusable_pair
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id, segment_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_list_segments

47 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_get_campaign

50 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

moosend_get_campaign_activity

50 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
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.id_source_missing

moosend_get_campaign_summary

50 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
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.id_source_missing

moosend_get_mailing_list

50 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_list_subscribers

50 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Its description is nearly the same as moosend_get_subscriber_by_email's (similarity 0.68); only the names and schemas tell them apart. Say in this description when to use moosend_get_subscriber_by_email instead.confusable_pair
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_unsubscribe_subscriber

50 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_create_mailing_list

51 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
The description mentions none of its 3 or more arguments.params_not_in_description

moosend_update_subscriber

54 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 22 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
String arguments with no constraint or example: name.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id, subscriber_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_list_senders

57 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
Says nothing about what it returns.no_return_info

moosend_add_subscriber

61 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 21 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Minor
String arguments with no constraint or example: name.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: mailing_list_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

moosend_create_draft_campaign

66 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 22 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

What static scoring cannot tell

This score reads only the text of each description and schema: it says what is written, not what a model will do. Short tools whose names already say what they do, such as browser_close, score low here even when models use them well, and in our measurements current models chose the right tool in one step even from one-line descriptions, as long as the names and schemas differed. What the text cannot show, such as what happens over several steps and whether an added sentence helps or misleads, is what an evaluation measures, on the Pro and Team plans.

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