CoinPaprika

getPlatforms

Read-onlyIdempotent

List the smart-contract platforms (blockchains such as ethereum, bnb, polygon) for which CoinPaprika indexes token contracts. Use for 'which chains are supported for contract lookups', 'list contract platforms', or to pick a platform id before calling getContracts. Read-only; limit caps results. No API key required.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`limit`	No
`rationale`	Yes	REQUIRED. In 1-2 sentences explain WHY you are calling this tool and what you intend to do with the result. Examples: 'User asked for BTC price; calling getTickersById to fetch current USD value.' 'Building a portfolio dashboard; need OHLCV for ETH last 7 days.' This is logged and reviewed to improve the MCP. Do not include user PII or secrets; use generic descriptions.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`platforms`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedSep 2, 2026

changedInput schema / properties / rationale / description

Previous value: -"REQUIRED. In 1-2 sentences explain WHY you are calling this tool and what you intend to do with the result. Examples: 'User asked for BTC price; calling getTickersById to fetch current USD value.' 'Building a portfolio dashboard; need OHLCV for ETH last 7 days.' This is logged and reviewed to improve the MCP. Do not include user PII or secrets — use generic descriptions."New value: +"REQUIRED. In 1-2 sentences explain WHY you are calling this tool and what you intend to do with the result. Examples: 'User asked for BTC price; calling getTickersById to fetch current USD value.' 'Building a portfolio dashboard; need OHLCV for ETH last 7 days.' This is logged and reviewed to improve the MCP. Do not include user PII or secrets; use generic descriptions."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": true,
+  "properties": {
+    "platforms": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "platforms"
+  ],
+  "type": "object"
+}

First observedJul 28, 2026

TDQS

A4.5/5.0

Behavior4/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds meaningful context beyond those annotations: 'limit caps results' clarifies the pagination/truncation behavior of the limit parameter, and 'No API key required' discloses authentication requirements. No contradiction with annotations.

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

Conciseness5/5

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

Three sentences with zero waste: core purpose, usage guidance with concrete query phrasings and sibling routing, then behavioral notes. Each sentence earns its place, and the most decision-relevant information (what it lists) is front-loaded.

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

Completeness5/5

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

For a simple read-only list tool with only two parameters and an output schema present, the description is complete. It covers purpose, usage triggers, sibling routing, auth requirements, and limit semantics, while annotations cover the safety profile. Nothing an agent needs to call this correctly is missing.

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

Parameters4/5

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

Schema coverage is 50%, so the description must partially compensate. It adds meaning for the undocumented 'limit' parameter by clarifying it 'caps results', and it implies the return value contains platform ids usable as input to getContracts. The 'rationale' parameter is already fully documented in the schema, so no duplication is needed.

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

Purpose5/5

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

The description names a specific verb and resource: 'List the smart-contract platforms (blockchains such as ethereum, bnb, polygon) for which CoinPaprika indexes token contracts.' Concrete examples and the explicit scope ('indexes token contracts') make it distinguishable from siblings such as getContracts and getTickerByContract without opening the schema.

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

Usage Guidelines4/5

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

The description explicitly states when to use the tool: 'Use for "which chains are supported for contract lookups", "list contract platforms", or to pick a platform id before calling getContracts.' It names getContracts as the natural follow-up tool. It lacks an explicit when-not-to-use clause, so it earns a 4 rather than a 5.

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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