apis-io

get_area_leaders

Read-only

UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influence. See apis://prices.

Input Schema

TableJSON Schema

Name	Required	Description
`slug`	Yes
`limit`	No
`context`	No	Optional: why you are asking. One sentence — the task you are trying to complete, or what you expect to get back. Never included in the answer and never used to rank; it is read only when a result turns out to be wrong, which is when knowing the intent is what makes the report actionable.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedAug 27, 2026

addedInput schema / properties / context

Added value: +{
+  "description": "Optional: why you are asking. One sentence — the task you are trying to complete, or what you expect to get back. Never included in the answer and never used to rank; it is read only when a result turns out to be wrong, which is when knowing the intent is what makes the report actionable.",
+  "type": "string"
+}

AddedJul 14, 2026

TDQS

C2.9/5.0

Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations declare readOnlyHint: true, and the description does not contradict that. The description adds pricing details and a reference to apis://prices, which is beyond annotations, but it does not describe behavioral aspects like the format of the returned list, pagination, or any limitations. The read-only nature is covered by annotations, so the description's additional value is mostly cost context, not behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence followed by pricing info. It is front-loaded with the core purpose. There is no fluff or redundancy. The 'UNDERSTANDING —' prefix is a minor stylistic addition but does not hurt clarity. Overall, it is appropriately concise.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

There is no output schema, so the description should explain what the tool returns. It says 'Top-rated providers' but does not describe the format, structure, or how many results to expect. The phrase 'curated API Evangelist area' is domain-specific and may be unclear to an agent without further context. Pricing is mentioned but not operational details. This is incomplete for a tool with no output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is only 33% (only 'context' has a description). The description does not mention 'slug' or 'limit' at all, so it adds no meaning beyond the schema for those parameters. The 'context' parameter is already described in the schema, so the description's silence on it is acceptable. For slug and limit, there is no compensation for the lack of schema descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific action and resource: 'Top-rated providers in a curated API Evangelist area.' This clearly identifies what the tool does. It does not explicitly distinguish from sibling leader tools like get_country_leaders or get_region_leaders, but the name and phrasing make the area-specific scope evident. The verb is implied by 'get' in the name, and the description clarifies the resource.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It does not mention sibling tools or conditions for selection. The only extra info is pricing, which is not usage guidance. An agent would have to infer from the name that this is for area-specific leaders, but no explicit 'use this when...' is given.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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