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CoinPaprika

by com.coinpaprika.mcp
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getCoinExchanges

Read-onlyIdempotent

List the exchanges that LIST a specific coin (venue names only). Use for 'which exchanges list X', 'is X on Coinbase', 'where is X listed'. For where to BUY with per-market price and volume use getCoinMarkets; for the live price use getTickersById. Read-only; coinId is a canonical id, limit caps results. No API key required.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNo
coinIdYesCanonical CoinPaprika coin slug in 'symbol-name' format, e.g. 'btc-bitcoin', 'eth-ethereum', 'ada-cardano'. Do NOT pass ticker symbols ('BTC', 'AAVE') or guess the slug; it is not derivable from the symbol (e.g. AAVE resolves to 'aave-new', which you could not guess). Call search or resolveId first to resolve a symbol or name to its canonical id.
rationaleYesREQUIRED. 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
NameRequiredDescriptionDefault
exchangesYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed3 schema fields changed
    • changedInput schema / properties / coinId / description
      Previous value: -"Canonical CoinPaprika coin slug in 'symbol-name' format, e.g. 'btc-bitcoin', 'eth-ethereum', 'ada-cardano'. Do NOT pass ticker symbols ('BTC', 'AAVE') or guess the slug — it is not derivable from the symbol (e.g. AAVE resolves to 'aave-new', which you could not guess). Call search or resolveId first to resolve a symbol or name to its canonical id."New value: +"Canonical CoinPaprika coin slug in 'symbol-name' format, e.g. 'btc-bitcoin', 'eth-ethereum', 'ada-cardano'. Do NOT pass ticker symbols ('BTC', 'AAVE') or guess the slug; it is not derivable from the symbol (e.g. AAVE resolves to 'aave-new', which you could not guess). Call search or resolveId first to resolve a symbol or name to its canonical id."
    • 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": {
+    "exchanges": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "active": {
+            "type": "boolean"
+          },
+          "adjusted_rank": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "api_status": {
+            "type": "boolean"
+          },
+          "currencies": {
+            "type": "number"
+          },
+          "description": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "fiats": {
+            "items": {},
+            "type": "array"
+          },
+          "id": {
+            "type": "string"
+          },
+          "last_updated": {
+            "type": "string"
+          },
+          "links": {},
+          "markets": {
+            "type": "number"
+          },
+          "markets_data_fetched": {
+            "type": "boolean"
+          },
+          "message": {
+            "type": [
+              "string",
+              "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"
+            },
+            "type": "object"
+          },
+          "reported_rank": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "website_status": {
+            "type": "boolean"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "exchanges"
+  ],
+  "type": "object"
+}
  2. First observed

TDQS

A4.7/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, and destructiveHint=false. The description adds genuinely useful behavioral context beyond those annotations: the result contains only venue names, 'limit caps results', and no API key is required. This goes beyond redundant safety labeling, though it doesn't detail output format further; the output schema covers that.

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: it states the core behavior first, then gives usage examples, sibling-tool routing, and key constraints. Every sentence earns its place and there is no filler or redundant restatement of the tool name.

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?

Given the tool's simplicity, the rich input schema descriptions, the output schema, and the annotations, the description is complete. It tells the agent what the tool returns (venue names only), how to route related requests, when it is usable without a key, and what the optional limit does. Nothing essential 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 description coverage is 67%: coinId and rationale have detailed descriptions in the schema, while limit does not. The description adds meaning for limit ('limit caps results') and reiterates the canonical-id requirement for coinId, which helps prevent misuse. It does not need to repeat rationale because the schema already explains it thoroughly with examples.

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 and resource: 'List the exchanges that LIST a specific coin (venue names only)'. It explicitly distinguishes the tool from getCoinMarkets and getTickersById, and the stated use cases ('which exchanges list X', 'is X on Coinbase') make its purpose unambiguous.

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?

The description provides explicit when-to-use guidance with concrete natural-language queries ('which exchanges list X', 'is X on Coinbase', 'where is X listed') and names the alternatives for adjacent use cases: getCoinMarkets for per-market buy prices/volume and getTickersById for live price. It also notes there is no API key required, so an agent knows this tool is the low-friction choice for listing venues.

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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