> ## 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 # DuckDuckGo Light Search > Usage-based billing; Default request estimate: $0.0253 USD (not a fixed price). Declared unit rate: $0.000001 USD per provider_credit. Account-specific pricing and final settlement may differ. ## Request contract * **Method and path:** POST /apis/v1/serpapi/duck-duck-go-light-search * **Availability:** enabled * **Request URL template:** `https://api.aisa.one/apis/v1/serpapi/duck-duck-go-light-search` * **Runtime facts:** 1d8d2010628130bd331b470b564dd1cd5784989899ccf3e384a8de02a69e0558 [Complete OpenAPI definition](https://aisa.one/docs/reference-contracts/serpapi.json) Effective request and pricing declaration (including authentication and referenced schemas): ```json theme={null} { "operationId": "serpapi.duck-duck-go-light-search", "method": "POST", "path": "/apis/v1/serpapi/duck-duck-go-light-search", "servers": [ { "url": "https://api.aisa.one" } ], "parameters": [], "security": [ { "bearerAuth": [] } ], "requestBody": { "content": { "application/json": { "examples": { "default": { "value": { "async": false, "output": "json", "q": "example" } }, "minimal": { "value": { "q": "example" } } }, "schema": { "additionalProperties": false, "properties": { "async": { "default": false, "enum": [ false ], "type": "boolean" }, "df": { "maxLength": 4096, "type": "string" }, "kl": { "maxLength": 4096, "type": "string" }, "next_page_token": { "maxLength": 4096, "type": "string" }, "no_cache": { "type": "boolean" }, "output": { "default": "json", "enum": [ "json" ], "type": "string" }, "q": { "maxLength": 4096, "type": "string" } }, "required": [ "q" ], "type": "object" } } }, "required": true }, "x-aisa-status": "enabled", "x-aisa-pricing": { "cost_contract": "response_units", "customer_multiplier": 1.0, "customer_pricing": "provider_cost_multiplier", "default_request_estimate_usd": 0.0253, "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" } } } } ``` ## Cost and request rules Usage-based billing; Default request estimate: \$0.0253 USD (not a fixed price). Declared unit rate: \$0.000001 USD per provider\_credit. Account-specific pricing and final settlement may differ. Published reference values are not an account-specific quote or a settled charge. For endpoints supporting X-AISA-Cost-Mode: quote, obtain a free quote for your exact request before execution; reconcile the settled cost with response metadata and Usage Logs. USD amounts use 1,000,000 integer micro-USD per dollar. * **Default request reference estimate (USD):** 0.0253 * **Declared unit rate (USD):** 1e-06 * **Billing unit:** provider\_credit * **Cost contract:** response\_units * **Published reference multiplier:** 1.0 * **Declared maximum count/units:** 10000000 * **Settlement evidence source:** response\_body ## OpenAPI ````yaml reference-contracts/serpapi.json POST /apis/v1/serpapi/duck-duck-go-light-search openapi: 3.1.0 info: description: '' title: SerpApi 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/serpapi/amazon-product - /apis/v1/serpapi/amazon-search - /apis/v1/serpapi/app-store-search-apps - /apis/v1/serpapi/baidu-news - /apis/v1/serpapi/baidu-search - /apis/v1/serpapi/bing-copilot - /apis/v1/serpapi/bing-images - /apis/v1/serpapi/bing-maps - /apis/v1/serpapi/bing-news - /apis/v1/serpapi/bing-search - /apis/v1/serpapi/bing-shopping - /apis/v1/serpapi/bing-videos - /apis/v1/serpapi/brave-ai-mode - /apis/v1/serpapi/duck-duck-go-light-search - /apis/v1/serpapi/duck-duck-go-maps - /apis/v1/serpapi/duck-duck-go-search - /apis/v1/serpapi/duckduckgo-light - /apis/v1/serpapi/duckduckgo-maps - /apis/v1/serpapi/duckduckgo-news - /apis/v1/serpapi/duckduckgo-search - /apis/v1/serpapi/ebay-product - /apis/v1/serpapi/ebay-search - /apis/v1/serpapi/event-search - /apis/v1/serpapi/facebook-profile - /apis/v1/serpapi/finance-search - /apis/v1/serpapi/get-facebook-profile - /apis/v1/serpapi/get-google-about-this-result - /apis/v1/serpapi/get-google-hotels-autocomplete-suggestions - /apis/v1/serpapi/get-google-images-related-content - /apis/v1/serpapi/get-google-patent-details - /apis/v1/serpapi/google-ads - /apis/v1/serpapi/google-ads-transparency - /apis/v1/serpapi/google-ai-mode - /apis/v1/serpapi/google-ai-overview - /apis/v1/serpapi/google-events - /apis/v1/serpapi/google-finance - /apis/v1/serpapi/google-flights - /apis/v1/serpapi/google-forums-search - /apis/v1/serpapi/google-hotels - /apis/v1/serpapi/google-images - /apis/v1/serpapi/google-jobs - /apis/v1/serpapi/google-jobs-search - /apis/v1/serpapi/google-keywords-ideas - /apis/v1/serpapi/google-lens - /apis/v1/serpapi/google-lens-search - /apis/v1/serpapi/google-light - /apis/v1/serpapi/google-light-search - /apis/v1/serpapi/google-local - /apis/v1/serpapi/google-maps - /apis/v1/serpapi/google-maps-search - /apis/v1/serpapi/google-news - /apis/v1/serpapi/google-patents - /apis/v1/serpapi/google-play-product - /apis/v1/serpapi/google-play-search-apps - /apis/v1/serpapi/google-scholar - /apis/v1/serpapi/google-scholar-author - /apis/v1/serpapi/google-scholar-cite - /apis/v1/serpapi/google-serp-organic - /apis/v1/serpapi/google-shopping - /apis/v1/serpapi/google-trends - /apis/v1/serpapi/google-videos - /apis/v1/serpapi/google-videos-light - /apis/v1/serpapi/home-depot-search - /apis/v1/serpapi/hotel-search - /apis/v1/serpapi/image-search - /apis/v1/serpapi/instagram-profile - /apis/v1/serpapi/naver-ai-overview - /apis/v1/serpapi/naver-search - /apis/v1/serpapi/news-search - /apis/v1/serpapi/open-table-reviews - /apis/v1/serpapi/play-search - /apis/v1/serpapi/scholar-search - /apis/v1/serpapi/search - /apis/v1/serpapi/search-apple-app-store - /apis/v1/serpapi/search-google-images-light - /apis/v1/serpapi/search-google-local-services - /apis/v1/serpapi/search-public-google-ads - /apis/v1/serpapi/search-yelp - /apis/v1/serpapi/shopping-search - /apis/v1/serpapi/trends-search - /apis/v1/serpapi/tripadvisor-search - /apis/v1/serpapi/walmart-product - /apis/v1/serpapi/walmart-search - /apis/v1/serpapi/yahoo-images - /apis/v1/serpapi/yahoo-search - /apis/v1/serpapi/yahoo-videos - /apis/v1/serpapi/yandex-images - /apis/v1/serpapi/yandex-images-search - /apis/v1/serpapi/yandex-search - /apis/v1/serpapi/yandex-videos - /apis/v1/serpapi/yelp-search - /apis/v1/serpapi/you-tube-search - /apis/v1/serpapi/youtube-search-videos x-aisa-document: facts_hash: 1d8d2010628130bd331b470b564dd1cd5784989899ccf3e384a8de02a69e0558 generator_version: '3' protocol_version: '1' schema_version: '1' seed_month: 2026-10 composer_version: '27' response_pending: - operation_id: serpapi.duck-duck-go-light-search path: /apis/v1/serpapi/duck-duck-go-light-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.get-google-about-this-result path: /apis/v1/serpapi/get-google-about-this-result method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.get-google-hotels-autocomplete-suggestions path: /apis/v1/serpapi/get-google-hotels-autocomplete-suggestions method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.get-google-images-related-content path: /apis/v1/serpapi/get-google-images-related-content method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.get-google-patent-details path: /apis/v1/serpapi/get-google-patent-details method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.google-forums-search path: /apis/v1/serpapi/google-forums-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.google-jobs-search path: /apis/v1/serpapi/google-jobs-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.google-light-search path: /apis/v1/serpapi/google-light-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.google-play-product path: /apis/v1/serpapi/google-play-product method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.google-videos-light path: /apis/v1/serpapi/google-videos-light method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.hotel-search path: /apis/v1/serpapi/hotel-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.open-table-reviews path: /apis/v1/serpapi/open-table-reviews method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.play-search path: /apis/v1/serpapi/play-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.search-apple-app-store path: /apis/v1/serpapi/search-apple-app-store method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.search-google-local-services path: /apis/v1/serpapi/search-google-local-services method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.search-public-google-ads path: /apis/v1/serpapi/search-public-google-ads method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.yandex-images-search path: /apis/v1/serpapi/yandex-images-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration - operation_id: serpapi.you-tube-search path: /apis/v1/serpapi/you-tube-search method: POST statuses: - '200' reason: public success response has no authoritative payload declaration document_hash: sha256:419ea2994fa4d65d79c2b9fc0374323a222458936e5495ead64fe4b2bffec6e6 x-aisa-plans: builder: 1 display_plan: payg payg: 1 similarweb_payg: 1 team: 1 version: e70a0959cd1b93b84ae16dffd7a538273ddb9c1d46277b82823c37ff1b6bc0fb x-aisa-provider: serpapi x-aisa-catalogs: serpapi: title: SerpApi description: '' x-aisa-document: facts_hash: 1d8d2010628130bd331b470b564dd1cd5784989899ccf3e384a8de02a69e0558 generator_version: '3' protocol_version: '1' schema_version: '1' seed_month: 2026-10 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/serpapi/duck-duck-go-light-search: post: tags: - SerpApi summary: DuckDuckGo Light Search description: >- Usage-based billing; Default request estimate: $0.0253 USD (not a fixed price). Declared unit rate: $0.000001 USD per provider_credit. Account-specific pricing and final settlement may differ. operationId: serpapi.duck-duck-go-light-search requestBody: content: application/json: examples: default: value: async: false output: json q: example minimal: value: q: example schema: additionalProperties: false properties: async: default: false enum: - false type: boolean df: maxLength: 4096 type: string kl: maxLength: 4096 type: string next_page_token: maxLength: 4096 type: string no_cache: type: boolean output: default: json enum: - json type: string q: maxLength: 4096 type: string required: - q type: object required: true responses: '200': description: Successful response default: content: application/json: schema: {} description: >- Error response; upstream passthrough responses may use provider formats x-codeSamples: - lang: text label: Reference example source: >- # Fixed reference example. Playground inputs do not update this sample. curl --request POST \ --url https://api.aisa.one/apis/v1/serpapi/duck-duck-go-light-search \ --header 'Authorization: Bearer ' \ --header 'Content-Type: application/json' \ --data '{ "async": false, "output": "json", "q": "example" }' components: securitySchemes: bearerAuth: scheme: bearer type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.