> ## Documentation Index > Fetch the complete documentation index at: https://aisa.one/docs/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > - Base URLs: models `https://api.aisa.one/v1` (Gemini GenerateContent: `https://api.aisa.one/v1beta`); data APIs `https://api.aisa.one/apis/v1`. The `servers` of each operation in https://aisa.one/openapi.yaml is authoritative. > - Auth: `Authorization: Bearer $AISA_API_KEY`. Never print, log, or commit the key. > - MCP (preferred for agents): `https://mcp.aisa.one/mcp`, signed in with OAuth, so there is no key to paste. > - Agent Skill: `npx skills add AIsa-team/agent-skills --skill aisa`. Fallback with the AIsa CLI: `aisa skills install aisa`. > - Spending: docs, https://aisa.one/models, https://aisa.one/api, `/v1/models`, and MCP `search`, `list_categories`, `get_details`, `batch_quote`, and the `account` operation are free. Quote the exact calls before running them (MCP `batch_quote`, CLI `aisa quote --json`). If the quote reports `auto_execute_eligible: true`, run it unless the user set a tighter limit or asked only for a quote. Otherwise, tell the user in one message the planned calls, the quoted price, and a total USD budget for the task, then wait for approval. Direct HTTP calls follow the stricter rule at https://aisa.one/docs/get-started/cli.md#direct-http-fallback. Do not make paid calls to test availability. Full rule: https://aisa.one/llms.txt # ETFS Directory > 按用量计费；默认请求预估费用：$0.00031 USD（不是固定价格）。 声明的单位费率：每 provider_credit $0.000001 USD。 最终费用以账户适用价格及实际结算为准。 ## 请求规范 * **方法与路径:** POST /apis/v1/twelvedata/etfs-directory * **可用状态:** enabled * **请求 URL 模板:** `https://api.aisa.one/apis/v1/twelvedata/etfs-directory` * **Runtime 事实版本:** be86868d55452e2d3238a78a01e84ee4ea754154da2627dd8e94fd2d5f19c061 [完整 OpenAPI 定义](https://aisa.one/docs/reference-contracts/zh/twelvedata.json) 有效请求与价格声明（包括认证和引用的 schema）： ```json theme={null} { "operationId": "twelvedata.etfs-directory", "method": "POST", "path": "/apis/v1/twelvedata/etfs-directory", "servers": [ { "url": "https://api.aisa.one" } ], "parameters": [], "security": [ { "bearerAuth": [] } ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "properties": { "format": { "enum": [ "JSON" ], "type": "string", "description": "Response format: 'JSON' (default) or 'CSV'." }, "country": { "type": "string", "examples": [ "US" ], "description": "Filter ETFs by country code (e.g., 'US')." }, "exchange": { "type": "string", "examples": [ "NASDAQ" ], "description": "Filter ETFs by exchange code (e.g., 'NASDAQ')." } }, "required": [ "format" ] } } } }, "x-aisa-status": "enabled", "x-aisa-pricing": { "cost_contract": "response_units", "customer_multiplier": 1.0, "customer_pricing": "provider_cost_multiplier", "default_request_estimate_usd": 0.00031, "estimate_source": "profile_seed", "evidence_source": "response_body", "maximum_units": 10000000, "unit": "provider_credit", "unit_rate_usd": 1e-06 }, "components": { "securitySchemes": { "bearerAuth": { "scheme": "bearer", "type": "http" } } } } ``` ## 费用与请求规则 按用量计费；默认请求预估费用：\$0.00031 USD（不是固定价格）。 声明的单位费率：每 provider\_credit \$0.000001 USD。 最终费用以账户适用价格及实际结算为准。 公开参考值不是你的账户报价或最终扣费。对于支持 X-AISA-Cost-Mode: quote 的接口，执行前请针对完整请求获取免费报价；执行后通过响应费用元数据和 Usage Logs 核对结算费用。1 USD 等于 1,000,000 个整数 micro-USD。 * **默认请求参考估价（USD）:** 0.00031 * **声明的单位费率（USD）:** 1e-06 * **计费单位:** provider\_credit * **计费依据:** response\_units * **公开参考倍率:** 1.0 * **声明的最大计数或单位数:** 10000000 * **结算证据来源:** response\_body ## OpenAPI ````yaml reference-contracts/zh/twelvedata.json POST /apis/v1/twelvedata/etfs-directory openapi: 3.1.0 info: description: '' title: Twelve Data version: '1' x-aisa-capabilities: idempotency: Idempotency-Key max_price: X-AISA-Max-Price-USD quote: header: X-AISA-Cost-Mode value: quote x-aisa-configured-paths: - /apis/v1/twelvedata/batch-get-quotes - /apis/v1/twelvedata/commodities-list - /apis/v1/twelvedata/countries-list - /apis/v1/twelvedata/cryptocurrencies - /apis/v1/twelvedata/cryptocurrency-exchanges-list-get - /apis/v1/twelvedata/currency-conversion - /apis/v1/twelvedata/etfs-directory - /apis/v1/twelvedata/etfs-family - /apis/v1/twelvedata/etfs-type - /apis/v1/twelvedata/exchanges - /apis/v1/twelvedata/forex-pairs - /apis/v1/twelvedata/get-earliest-timestamp - /apis/v1/twelvedata/get-funds - /apis/v1/twelvedata/get-last-change - /apis/v1/twelvedata/get-market-state - /apis/v1/twelvedata/get-price - /apis/v1/twelvedata/get-technical-indicators-list - /apis/v1/twelvedata/mutual-funds-family - /apis/v1/twelvedata/mutual-funds-list - /apis/v1/twelvedata/quote - /apis/v1/twelvedata/stocks-list - /apis/v1/twelvedata/symbol-search - /apis/v1/twelvedata/time-series x-aisa-document: facts_hash: be86868d55452e2d3238a78a01e84ee4ea754154da2627dd8e94fd2d5f19c061 generator_version: '3' protocol_version: '1' schema_version: '1' composer_version: '28' response_pending: - operation_id: twelvedata.batch-get-quotes path: /apis/v1/twelvedata/batch-get-quotes method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: twelvedata.currency-conversion path: /apis/v1/twelvedata/currency-conversion method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: twelvedata.get-price path: /apis/v1/twelvedata/get-price method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: twelvedata.quote path: /apis/v1/twelvedata/quote method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: twelvedata.stocks-list path: /apis/v1/twelvedata/stocks-list method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: twelvedata.symbol-search path: /apis/v1/twelvedata/symbol-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: twelvedata.time-series path: /apis/v1/twelvedata/time-series method: POST statuses: - '200' reason: public success response has no authoritative payload declaration document_hash: sha256:db5de53df565d48b0eee1a2c8d16d01bbd767993e4ef793c5447395f37fb4e59 x-aisa-plans: builder: 1 display_plan: payg payg: 1 similarweb_payg: 1 team: 1 version: e70a0959cd1b93b84ae16dffd7a538273ddb9c1d46277b82823c37ff1b6bc0fb x-aisa-provider: twelvedata x-aisa-catalogs: twelvedata: title: Twelve Data description: '' x-aisa-document: facts_hash: be86868d55452e2d3238a78a01e84ee4ea754154da2627dd8e94fd2d5f19c061 generator_version: '3' protocol_version: '1' schema_version: '1' x-aisa-plans: builder: 1 display_plan: payg payg: 1 similarweb_payg: 1 team: 1 version: e70a0959cd1b93b84ae16dffd7a538273ddb9c1d46277b82823c37ff1b6bc0fb x-aisa-capabilities: idempotency: Idempotency-Key max_price: X-AISA-Max-Price-USD quote: header: X-AISA-Cost-Mode value: quote servers: - url: https://api.aisa.one security: - bearerAuth: [] paths: /apis/v1/twelvedata/etfs-directory: post: tags: - Twelve Data summary: ETFS Directory description: >- 按用量计费；默认请求预估费用：$0.00031 USD（不是固定价格）。 声明的单位费率：每 provider_credit $0.000001 USD。 最终费用以账户适用价格及实际结算为准。 operationId: twelvedata.etfs-directory requestBody: required: true content: application/json: schema: type: object properties: format: enum: - JSON type: string description: 'Response format: ''JSON'' (default) or ''CSV''.' country: type: string examples: - US description: Filter ETFs by country code (e.g., 'US'). exchange: type: string examples: - NASDAQ description: Filter ETFs by exchange code (e.g., 'NASDAQ'). required: - format responses: '200': description: Tool result data content: application/json: schema: $ref: >- #/components/schemas/Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__public_data default: content: application/json: schema: {} description: >- Error response; upstream passthrough responses may use provider formats components: schemas: Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__public_data: $ref: >- #/components/schemas/Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__48089d0c4d46bddd Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__48089d0c4d46bddd: type: object properties: result: $ref: >- #/components/schemas/Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__d1ec0b26a07fc10d status: type: string raw_csv: type: string Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__d1ec0b26a07fc10d: type: object required: - count - list properties: list: type: array items: $ref: >- #/components/schemas/Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__509f3f0fd615d06c count: type: integer Response576A0Ea506F3_connect_TWELVE_DATA_ETFS_DIRECTORY__output__509f3f0fd615d06c: type: object required: - symbol - name - country - mic_code properties: name: type: string symbol: type: string country: type: string mic_code: type: string fund_type: type: string default: '' fund_family: type: string default: '' securitySchemes: bearerAuth: scheme: bearer type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.