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

TableJSON 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

TableJSON Schema

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

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": {
+    "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 readOnly, openWorld, idempotent, and non-destructive hints. The description adds useful behavioral context beyond those: no API key is required, querying is driven by q, categories filters entity types, and limit caps results. It does not cover errors or pagination, but the annotations lower the burden here.

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 well-ordered: search scope, usage trigger, alternative, and operational notes. Every sentence earns its place, and there is no filler or redundant schema repetition.

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

Completeness4/5

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

With a full input schema and an output schema available, this description covers the essential context: what is searched, when to use it, when not to, authentication, and key parameter behavior. The only minor gap is the vague 'modifier' parameter, but the schema itself shares that ambiguity.

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 description coverage is 100%, so the baseline is 3. The description briefly restates q, categories, and limit, but the schema already gives more precise semantics such as limit being per category and q being case-insensitive/partial-match. It adds no additional meaning for modifier or rationale.

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 ('Broadly search'), a defined resource set ('coins, exchanges, ICOs, people and tags'), and a search mode ('by name or symbol'). It also explicitly distinguishes the tool from resolveId, making its role clear among siblings.

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 states the exact condition for use ('when the entity type is unknown or you are exploring') and gives a natural-language trigger ('find anything called X'). It names resolveId as the preferred alternative when a canonical coin id is needed, satisfying the when/when-not requirement.

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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