# Rewardful MCP by usefulapi (io.usefulapi/rewardful): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.usefulapi%2Frewardful/versions/latest)
- Connected to: https://rewardful.usefulapi.io/mcp
- Homepage: https://usefulapi.io/rewardful/
- Repository: https://github.com/m190/usefulapi-mcp
- Scoring rules: v2
- Tools: 20
- Average: 48.0 / 100 (Cloudy)
- Near-identical pairs: 1

This page shows how Rewardful MCP by usefulapi (io.usefulapi/rewardful)'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

- `rewardful_list_affiliate_coupons`: 39 / 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.
- `rewardful_list_commissions`: 42 / 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.
- `rewardful_list_payouts`: 42 / 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.
- `rewardful_list_referrals`: 42 / 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.
- `rewardful_get_campaign`: 43 / 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.
- `rewardful_list_affiliate_links`: 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.
- `rewardful_update_affiliate`: 45 / 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: affiliate_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_get_affiliate`: 47 / 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: affiliate_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_get_affiliate_coupon`: 47 / 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: coupon_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_get_affiliate_link`: 47 / 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: link_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_get_payout`: 47 / 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: payout_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_list_affiliates`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `rewardful_create_affiliate`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `rewardful_get_commission`: 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: commission_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_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.
- `rewardful_create_campaign`: 51 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `rewardful_update_campaign`: 51 / 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.
- `rewardful_create_affiliate_link`: 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: affiliate_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_create_affiliate_coupon`: 60 / 100
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: affiliate_id. Name the tool or the place that returns it, or models look it up first.
- `rewardful_update_affiliate_link`: 62 / 100
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: link_id. Name the tool or the place that returns it, or models look it up first.

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