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Lob MCP by usefulapi: tool descriptions scored io.usefulapi/lob

tools/list taken
(UTC)
From
Official MCP Registry
Connected to
https://lob.usefulapi.io/mcp
Homepage
usefulapi.io/lob/
Repository
github.com/m190/usefulapi-mcp
Scoring rules
v2
Removal
support@forecall.dev
Score this URL as it is today

Scores, issues and names only

This page shows how Lob MCP by usefulapi (io.usefulapi/lob)'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/lob
Average score
44.7 / 100Cloudy
Tools
18
Near-identical descriptions
6

Across the server

Tools whose descriptions are nearly the same

6 of 6 pairs shown, highest description similarity first.
ToolToolDescription similarityName similarity
lob_list_postcardslob_list_letters0.800.50
lob_list_postcardslob_list_checks0.800.50
lob_list_letterslob_list_checks0.800.50
lob_list_postcardslob_list_self_mailers0.730.40
lob_list_letterslob_list_self_mailers0.730.40
lob_list_checkslob_list_self_mailers0.730.40

Tools

lob_list_addresses

35 / 100Rain

Purpose
13 / 20
When to use
0 / 20
Arguments
15 / 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
    The description mentions none of its 3 or more arguments.params_not_in_description
  • Minor
    Says nothing about what it returns.no_return_info

lob_list_checks

35 / 100Rain

Purpose
13 / 20
When to use
0 / 20
Arguments
15 / 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 lob_list_postcards's (similarity 0.80); only the names and schemas tell them apart. Say in this description when to use lob_list_postcards instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_letters's (similarity 0.80); only the names and schemas tell them apart. Say in this description when to use lob_list_letters instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_self_mailers's (similarity 0.73); only the names and schemas tell them apart. Say in this description when to use lob_list_self_mailers instead.confusable_pair
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description
  • Minor
    Says nothing about what it returns.no_return_info

lob_list_letters

35 / 100Rain

Purpose
13 / 20
When to use
0 / 20
Arguments
15 / 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 lob_list_postcards's (similarity 0.80); only the names and schemas tell them apart. Say in this description when to use lob_list_postcards instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_checks's (similarity 0.80); only the names and schemas tell them apart. Say in this description when to use lob_list_checks instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_self_mailers's (similarity 0.73); only the names and schemas tell them apart. Say in this description when to use lob_list_self_mailers instead.confusable_pair
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description
  • Minor
    Says nothing about what it returns.no_return_info

lob_list_postcards

35 / 100Rain

Purpose
13 / 20
When to use
0 / 20
Arguments
15 / 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 lob_list_letters's (similarity 0.80); only the names and schemas tell them apart. Say in this description when to use lob_list_letters instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_checks's (similarity 0.80); only the names and schemas tell them apart. Say in this description when to use lob_list_checks instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_self_mailers's (similarity 0.73); only the names and schemas tell them apart. Say in this description when to use lob_list_self_mailers instead.confusable_pair
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description
  • Minor
    Says nothing about what it returns.no_return_info

lob_list_self_mailers

35 / 100Rain

Purpose
13 / 20
When to use
0 / 20
Arguments
15 / 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 lob_list_postcards's (similarity 0.73); only the names and schemas tell them apart. Say in this description when to use lob_list_postcards instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_letters's (similarity 0.73); only the names and schemas tell them apart. Say in this description when to use lob_list_letters instead.confusable_pair
  • Minor
    Its description is nearly the same as lob_list_checks's (similarity 0.73); only the names and schemas tell them apart. Say in this description when to use lob_list_checks instead.confusable_pair
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description
  • Minor
    Says nothing about what it returns.no_return_info

lob_list_templates

39 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
15 / 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
    The description mentions none of its 3 or more arguments.params_not_in_description
  • Minor
    Says nothing about what it returns.no_return_info

lob_get_address

42 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
18 / 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
    String arguments with no constraint or example: id.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: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

lob_get_check

42 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
18 / 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
    String arguments with no constraint or example: id.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: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

lob_get_letter

42 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
18 / 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
    String arguments with no constraint or example: id.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: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

lob_get_postcard

42 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
18 / 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
    String arguments with no constraint or example: id.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: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

lob_us_autocomplete

44 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
18 / 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
    The description mentions none of its 3 or more arguments.params_not_in_description
  • Minor
    Says nothing about what it returns.no_return_info

lob_verify_intl_address

45 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
11 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
10 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    Arguments without a description: secondary_line, city, postal_code.param_no_description
  • Minor
    String arguments with no constraint or example: primary_line, secondary_line, city, state, postal_code.loose_string_param
  • Minor
    Says nothing about what it returns.no_return_info

lob_verify_us_address

49 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
12 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
10 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    Arguments without a description: city.param_no_description
  • Minor
    String arguments with no constraint or example: city, zip_code.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

lob_cancel_postcard

50 / 100Cloudy

Purpose
20 / 20
When to use
5 / 20
Arguments
18 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Minor
    Says nothing about what it returns.no_return_info
  • Minor
    Required identifiers whose description does not say where the value comes from: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

lob_create_postcard

54 / 100Cloudy

Purpose
17 / 20
When to use
5 / 20
Arguments
20 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Minor
    String arguments with no constraint or example: description.loose_string_param
  • Minor
    Says nothing about what it returns.no_return_info

lob_us_zip_lookup

54 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
18 / 25
Return value
7 / 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

lob_create_address

59 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
15 / 25
Return value
7 / 15
Constraints and side effects
7 / 10
Examples
10 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    Arguments without a description: company, address_city.param_no_description
  • Minor
    String arguments with no constraint or example: company, address_line1, address_line2, address_city, address_zip.loose_string_param
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description

lob_create_letter

68 / 100Cloudy

Purpose
17 / 20
When to use
15 / 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: description.loose_string_param
  • Minor
    Says nothing about what it returns.no_return_info

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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