x402 Micropayments MCP: tool descriptions scored io.github.kwizzlesurp10-ctrl/x402-mcp

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://x402-mcp.onrender.com/mcp/mcp
Homepage: x402-mcp.onrender.com
Repository: github.com/kwizzlesurp10-ctrl/x402-mcp
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how x402 Micropayments MCP (io.github.kwizzlesurp10-ctrl/x402-mcp)'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.github.kwizzlesurp10-ctrl/x402-mcp

Average score: 61.5 / 100Cloudy
Tools: 20
Near-identical descriptions: 0

Across the server

No server-wide issues.

Tools

city.list

55 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 8 / 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

commerce.pro_requirements

55 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 8 / 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
No `required` list, so every argument is optional.no_required

ops.metrics

55 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 8 / 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

x402.probe

55 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 21 / 25
Return value: 8 / 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

a2a.resolve_card

57 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 8 / 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

x402.build_seller

57 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 8 / 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
No `required` list, so every argument is optional.no_required

x402.discover

57 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 8 / 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
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

x402.networks

57 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 20 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
No `required` list, so every argument is optional.no_required

x402.verify

57 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 20 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

x402.agent_card

59 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 15 / 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

commerce.credits_requirements

60 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 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

swarm.revenue

60 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 20 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
No `required` list, so every argument is optional.no_required

city.sample

64 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 25
Return value: 15 / 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

swarm.settle

64 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 19 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Required identifiers whose description does not say where the value comes from: product_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

x402.pay_and_fetch

67 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 22 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

commerce.purchase_credits

68 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 20 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Minor
No `required` list, so every argument is optional.no_required

pulse.base

68 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 20 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Minor
No `required` list, so every argument is optional.no_required

swarm.research

70 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 20 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

city.check

71 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

commerce.activate_pro

75 / 100Clear

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

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

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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