{"openapi":"3.0.3","info":{"title":"Gnist Context — Currency Conversion","description":"Real-time and historical currency conversion — 30+ currencies with ECB reference rates.\n\n- **MCP endpoint:** `https://context.gnist.ai/mcp/currency-conversion/`\n- **Toolkit page:** `/toolkits/currency-conversion`\n- **Full API spec:** `/api/openapi.json`\n- **Get an API key:** `/signup`","version":"1.0.0","contact":{"name":"GnistAI","url":"https://gnist.ai"}},"servers":[{"url":"https://context.gnist.ai","description":"Production"}],"paths":{"/rest/currency-conversion/convert_currency":{"post":{"tags":["Finance"],"summary":"convert_currency","description":"Convert an amount from one currency to another using real-time or historical rates.\n\nSupports 30+ currencies including USD, EUR, GBP, NOK, SEK, JPY, and more.\nUses European Central Bank reference rates via Frankfurter API.\n\nArgs:\n    amount: The amount to convert (must be positive).\n    base: Source currency code (e.g. \"USD\", \"EUR\", \"NOK\").\n    target: Target currency code (e.g. \"GBP\", \"SEK\", \"JPY\").\n    date: Optional ISO date (YYYY-MM-DD) for historical rate. Omit for latest.","operationId":"currency_conversion_convert_currency","responses":{"200":{"description":"Successful tool call","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Server or tool not found"},"500":{"description":"Tool execution error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"additionalProperties":false,"properties":{"amount":{"type":"number"},"base":{"type":"string"},"target":{"type":"string"},"date":{"anyOf":[{"type":"string"},{"type":"null"}],"default":null}},"required":["amount","base","target"],"type":"object"}}}}}},"/rest/currency-conversion/get_exchange_rates":{"post":{"tags":["Finance"],"summary":"get_exchange_rates","description":"Get all exchange rates for a base currency.\n\nReturns rates for 30+ currencies relative to the specified base.\n\nArgs:\n    base: Base currency code (default: \"EUR\").\n    date: Optional ISO date (YYYY-MM-DD) for historical rates. Omit for latest.","operationId":"currency_conversion_get_exchange_rates","responses":{"200":{"description":"Successful tool call","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Server or tool not found"},"500":{"description":"Tool execution error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"requestBody":{"required":false,"content":{"application/json":{"schema":{"additionalProperties":false,"properties":{"base":{"default":"EUR","type":"string"},"date":{"anyOf":[{"type":"string"},{"type":"null"}],"default":null}},"type":"object"}}}}}},"/rest/currency-conversion/list_currencies":{"post":{"tags":["Finance"],"summary":"list_currencies","description":"List all supported currency codes for conversion.\n\nReturns ISO 4217 currency codes supported by the exchange rate service.","operationId":"currency_conversion_list_currencies","responses":{"200":{"description":"Successful tool call","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Server or tool not found"},"500":{"description":"Tool execution error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}]}},"/rest/currency-conversion/report_feedback":{"post":{"tags":["Finance"],"summary":"report_feedback","description":"Report a bug, feature request, or general feedback for this data source.\n\nUse this when something doesn't work as expected, when you'd like\na new feature, or when you have suggestions for improvement.\n\nArgs:\n    feedback: Describe the issue or suggestion.\n    feedback_type: One of 'bug', 'feature_request', or 'general'.","operationId":"currency_conversion_report_feedback","responses":{"200":{"description":"Successful tool call","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Server or tool not found"},"500":{"description":"Tool execution error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"additionalProperties":false,"properties":{"feedback":{"type":"string"},"feedback_type":{"default":"general","type":"string"}},"required":["feedback"],"type":"object"}}}}}}},"tags":[{"name":"Finance","description":"Data sources: Finance"}],"components":{"securitySchemes":{"ApiKeyHeader":{"type":"apiKey","in":"header","name":"gnist-api-key","description":"API key passed via request header."},"ApiKeyQuery":{"type":"apiKey","in":"query","name":"gnist_api_key","description":"API key passed via query parameter."}}}}