CoinPaprika

getTickers

Read-onlyIdempotent

Get current prices, market caps and 24h changes for the top cryptocurrencies ranked by market cap. Use for 'top 5 coins', 'top crypto today', 'biggest cryptocurrencies', or a market snapshot. For one specific coin use getTickersById. Read-only; quotes sets the quote currencies (default USD), limit caps results. No API key required.

Input Schema

TableJSON Schema

Name	Required	Description
`limit`	No
`quotes`	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
`tickers`	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": {
+    "tickers": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "beta_value": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "circulating_supply": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "first_data_at": {
+            "type": "string"
+          },
+          "id": {
+            "type": "string"
+          },
+          "last_updated": {
+            "type": "string"
+          },
+          "max_supply": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "name": {
+            "type": "string"
+          },
+          "quotes": {
+            "additionalProperties": {
+              "additionalProperties": true,
+              "properties": {
+                "ath_date": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "ath_price": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "market_cap": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "market_cap_change_24h": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_12h": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_15m": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_1h": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_1y": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_24h": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_30d": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_30m": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_6h": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_change_7d": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "percent_from_price_ath": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "price": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "volume_24h": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "volume_24h_change_24h": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                }
+              },
+              "type": "object"
+            },
+            "description": "Keyed by quote currency code (e.g. 'USD', 'BTC').",
+            "type": "object"
+          },
+          "rank": {
+            "type": "number"
+          },
+          "symbol": {
+            "type": "string"
+          },
+          "total_supply": {
+            "description": "May be 0 as a sentinel for tokens with no supply cap. Cross-reference with CoinPaprika docs for sentinel semantics.",
+            "type": [
+              "number",
+              "null"
+            ]
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "tickers"
+  ],
+  "type": "object"
+}

First observedJul 28, 2026

TDQS

A4.7/5.0

Behavior4/5

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

Annotations already declare read-only, idempotent, and non-destructive behavior; the description reinforces this and adds non-obvious context such as 'No API key required' and the default quote currency. It does not discuss rate limits or freshness, but the key access and mutation traits are clearly disclosed.

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?

The description is compact and front-loaded: purpose, use cases, the key alternative, parameter notes, and access requirements are all covered in a few short sentences. No fluff or repetition of schema fields.

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 an aggregate market-snapshot tool with an output schema already present, the description covers access, ordering by market cap, parameter behavior, and the primary fallback for single coins. An agent can call it correctly without additional inference.

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?

The schema only documents 'rationale', so the description carries the burden for 'quotes' and 'limit'. It clarifies that quotes sets quote currencies (default USD) and limit caps results, which is exactly the missing semantics. 'rationale' remains well-documented in the schema.

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 uses a specific verb ('Get') and resource ('current prices, market caps and 24h changes for the top cryptocurrencies'), and adds an explicit scope ('ranked by market cap'). It is immediately distinguishable from sibling coin-specific tools.

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

Usage Guidelines5/5

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

It explicitly lists natural-language triggers ('top 5 coins', 'top crypto today', 'biggest cryptocurrencies', 'market snapshot') and names the correct alternative for one specific coin: getTickersById. This removes ambiguity about when to use it.

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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