CoinPaprika

search

Read-onlyIdempotent

Broadly search CoinPaprika across coins, exchanges, ICOs, people and tags by name or symbol when the entity type is unknown or you are exploring. Use for 'find anything called X'. If you specifically need a coin's canonical id to fetch its price, prefer resolveId. Read-only; q is the query, categories filters entity types, limit caps results. No API key required.

Input Schema

Name	Required	Description
`q`	Yes	Required. Search query (case-insensitive, partial-match).
`limit`	No	Optional. Items PER CATEGORY (not total). Default 50.
`modifier`	No	Optional. Upstream-specific search modifier.
`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.
`categories`	No	Optional. Comma-separated category filter: 'currencies', 'exchanges', 'icos', 'people', 'tags'. Omit to search all categories.

Output Schema

Name	Required	Description	Default
`icos`	No
`tags`	No
`people`	No
`exchanges`	No
`currencies`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed16 schema fields changedOct 23, 2026

removedOutput schema / properties / currencies / items / additionalProperties
```
Removed value: -true
```

addedOutput schema / properties / currencies / items / anyOf

Added value: +[
+  {
+    "additionalProperties": true,
+    "properties": {
+      "id": {
+        "description": "CoinPaprika coin slug, format symbol-name (e.g. 'btc-bitcoin').",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "is_active": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "is_new": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "name": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "rank": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "symbol": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "type": {
+        "description": "'coin' or 'token'.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / currencies / items / properties

Removed value: -{
-  "id": {
-    "description": "CoinPaprika coin slug, format symbol-name (e.g. 'btc-bitcoin').",
-    "type": "string"
-  },
-  "is_active": {
-    "type": "boolean"
-  },
-  "is_new": {
-    "type": "boolean"
-  },
-  "name": {
-    "type": "string"
-  },
-  "rank": {
-    "type": "number"
-  },
-  "symbol": {
-    "type": "string"
-  },
-  "type": {
-    "description": "'coin' or 'token'.",
-    "type": "string"
-  }
-}

removedOutput schema / properties / currencies / items / type
```
Removed value: -"object"
```
removedOutput schema / properties / exchanges / items / additionalProperties
```
Removed value: -true
```

addedOutput schema / properties / exchanges / items / anyOf

Added value: +[
+  {
+    "additionalProperties": true,
+    "properties": {
+      "active": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "adjusted_rank": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "api_status": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "currencies": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "description": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "fiats": {
+        "anyOf": [
+          {
+            "items": {},
+            "type": "array"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "id": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "last_updated": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "links": {},
+      "markets": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "markets_data_fetched": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "message": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "name": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "quotes": {
+        "anyOf": [
+          {
+            "additionalProperties": {
+              "anyOf": [
+                {
+                  "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": "null"
+                }
+              ]
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "reported_rank": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "website_status": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / exchanges / items / properties

Removed value: -{
-  "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"
-  }
-}

removedOutput schema / properties / exchanges / items / type
```
Removed value: -"object"
```
removedOutput schema / properties / people / items / additionalProperties
```
Removed value: -true
```

addedOutput schema / properties / people / items / anyOf

Added value: +[
+  {
+    "additionalProperties": true,
+    "properties": {
+      "description": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "links": {},
+      "name": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "positions": {
+        "anyOf": [
+          {
+            "items": {},
+            "type": "array"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "teams_count": {
+        "type": [
+          "number",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / people / items / properties

Removed value: -{
-  "description": {
-    "type": [
-      "string",
-      "null"
-    ]
-  },
-  "id": {
-    "type": "string"
-  },
-  "links": {},
-  "name": {
-    "type": "string"
-  },
-  "positions": {
-    "items": {},
-    "type": "array"
-  },
-  "teams_count": {
-    "type": "number"
-  }
-}

removedOutput schema / properties / people / items / type
```
Removed value: -"object"
```
removedOutput schema / properties / tags / items / additionalProperties
```
Removed value: -true
```

addedOutput schema / properties / tags / items / anyOf

Added value: +[
+  {
+    "additionalProperties": true,
+    "properties": {
+      "coin_counter": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "coins": {
+        "anyOf": [
+          {
+            "items": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "type": "array"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "description": "Present when additionalFields=coins is requested."
+      },
+      "description": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "ico_counter": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "icos": {
+        "anyOf": [
+          {
+            "items": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "type": "array"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "id": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "name": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "type": {
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / tags / items / properties

Removed value: -{
-  "coin_counter": {
-    "type": "number"
-  },
-  "coins": {
-    "description": "Present when additionalFields=coins is requested.",
-    "items": {
-      "type": "string"
-    },
-    "type": "array"
-  },
-  "description": {
-    "type": [
-      "string",
-      "null"
-    ]
-  },
-  "ico_counter": {
-    "type": "number"
-  },
-  "icos": {
-    "items": {
-      "type": "string"
-    },
-    "type": "array"
-  },
-  "id": {
-    "type": "string"
-  },
-  "name": {
-    "type": "string"
-  },
-  "type": {
-    "type": "string"
-  }
-}

removedOutput schema / properties / tags / items / type
```
Removed value: -"object"
```

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": {
+    "currencies": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "id": {
+            "description": "CoinPaprika coin slug, format symbol-name (e.g. 'btc-bitcoin').",
+            "type": "string"
+          },
+          "is_active": {
+            "type": "boolean"
+          },
+          "is_new": {
+            "type": "boolean"
+          },
+          "name": {
+            "type": "string"
+          },
+          "rank": {
+            "type": "number"
+          },
+          "symbol": {
+            "type": "string"
+          },
+          "type": {
+            "description": "'coin' or 'token'.",
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "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"
+    },
+    "icos": {
+      "items": {},
+      "type": "array"
+    },
+    "people": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "description": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "id": {
+            "type": "string"
+          },
+          "links": {},
+          "name": {
+            "type": "string"
+          },
+          "positions": {
+            "items": {},
+            "type": "array"
+          },
+          "teams_count": {
+            "type": "number"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "tags": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "coin_counter": {
+            "type": "number"
+          },
+          "coins": {
+            "description": "Present when additionalFields=coins is requested.",
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "description": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "ico_counter": {
+            "type": "number"
+          },
+          "icos": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "id": {
+            "type": "string"
+          },
+          "name": {
+            "type": "string"
+          },
+          "type": {
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "type": "object"
+}

First observedJul 28, 2026

TDQS

A4.4/5.0

Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint and openWorldHint, so the description's 'Read-only' adds little, but 'No API key required' discloses an auth requirement and 'limit caps results' flags a result-shape constraint worth knowing before calling. No destructive/permission caveats are missing for a read-only search.

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?

Front-loaded with the scope and the primary use case, and the alternative-tool routing follows before any parameter talk. The trailing sentence partially repeats annotation-declared facts (read-only) and schema facts, which costs it a point.

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?

An output schema exists, so return values need no explanation, and the annotations carry the safety profile. What remains for a broad multi-entity search — scope, category filtering, auth, and the resolveId escape hatch — is all present.

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

Parameters3/5

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

Schema coverage is 100%, so all five params are documented upstream and the baseline is 3. The description's gloss ('q is the query, categories filters entity types, limit caps results') restates the schema and actually under-specifies limit, which the schema clarifies as per-category rather than total; the 'modifier' param goes unmentioned.

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?

States a specific verb and scope ('Broadly search CoinPaprika across coins, exchanges, ICOs, people and tags by name or symbol') and immediately distinguishes itself from resolveId for the canonical-id case. An agent can pick between this and the many get*By* siblings without opening a schema.

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?

Gives explicit when-to-use ('entity type is unknown or you are exploring', 'find anything called X') and names the alternative with the condition that selects it ('If you specifically need a coin's canonical id to fetch its price, prefer resolveId'). Routing is fully determined.

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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