{"openapi":"3.0.3","info":{"title":"Gnist Context — Income Tax Rates","description":"Income tax rates and calculator — progressive brackets for 15 countries, with tax computation.\n\n- **MCP endpoint:** `https://context.gnist.ai/mcp/income-tax/`\n- **Toolkit page:** `/toolkits/income-tax`\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/income-tax/get_tax_info":{"post":{"tags":["Finance"],"summary":"get_tax_info","description":"Get income tax brackets and rates for a country.\n\nReturns tax brackets, standard deduction, currency, tax year, and notes about the tax system.","operationId":"income_tax_get_tax_info","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":{"country_code":{"description":"ISO 3166-1 alpha-2 country code (e.g. US, GB, DE, NO).","type":"string"}},"required":["country_code"],"type":"object"}}}}}},"/rest/income-tax/calculate_income_tax":{"post":{"tags":["Finance"],"summary":"calculate_income_tax","description":"Calculate progressive income tax for a given country and annual income.\n\nReturns total tax, effective rate, marginal rate, and a per-bracket breakdown showing\nhow much income falls in each bracket and how much tax is owed per bracket.","operationId":"income_tax_calculate_income_tax","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":{"country_code":{"description":"ISO 3166-1 alpha-2 country code (e.g. US, GB, DE, NO).","type":"string"},"income":{"description":"Gross annual income in the country's local currency.","exclusiveMinimum":0,"type":"number"}},"required":["country_code","income"],"type":"object"}}}}}},"/rest/income-tax/list_tax_countries":{"post":{"tags":["Finance"],"summary":"list_tax_countries","description":"List all countries with available income tax bracket data.\n\nReturns country codes, names, and currencies for all supported countries.","operationId":"income_tax_list_tax_countries","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/income-tax/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":"income_tax_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."}}}}