{"uid":"cap_ExHKUl0pjg5iPyWHr8tDn","slug":"serp402-duckduckgo-light-search-api-6b7dfc4d","name":"serp402 DuckDuckGo Light Search API","description":"DuckDuckGo Light: Access the world's fastest DuckDuckGo Search API. Scrape DuckDuckGo search results in JSON format automatically using custom parameters. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners.","url":"https://serp402.com/api/v1/duckduckgo-light?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"q":{"type":"string"},"df":{"type":"string","description":"results filtered by date. It can be set to: d : Past day, w : Past week, m : Past month, y : Past year, or you can pass a custom date following the next…"},"kl":{"type":"string","description":"region to use for the DuckDuckGo search. Region code examples: us-en for the United States, uk-en for United Kingdom, or fr-fr for France. Head to the…"},"next_page_token":{"type":"string","description":"next page token. It is used for retrieving the next page results. 15 results are returned per page."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ughDf7vuo8yN8pxWJfjYU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Scrapes DuckDuckGo search results and returns structured JSON, with optional filtering by date range, region, and pagination","exampleAgentPrompt":"Search DuckDuckGo for 'best open-source LLM frameworks' filtered to the past month, using US English results, and give me the first page in structured JSON.","exampleUseCases":[{"title":"Recent news search for a topic","prompt":"Search DuckDuckGo for 'EU AI regulation news' and filter results to only the past week, using UK English region — I want the latest headlines."},{"title":"Competitor research from specific region","prompt":"Can you search DuckDuckGo for 'project management software reviews' using US English region and pull back the first page of results as structured JSON?"},{"title":"Paginated deep search results","prompt":"I already got the first page of DuckDuckGo results for 'machine learning datasets' — can you fetch the next page using the pagination token I got back?"}],"resultDescription":"Returns a structured JSON object containing up to 15 search results per page, each typically including a title, URL, and snippet. Also includes a next_page_token for fetching subsequent pages. Results may be filtered by date range and localized by region code.","failureModes":["Invalid or unsupported region code returns no results or an error","Empty query string may return an error or empty result set","Invalid date filter value causes unexpected filtering behavior","Payment failure (insufficient USDC) blocks the request with a 402 response","Rate limiting or DuckDuckGo blocking may cause empty or degraded results","Invalid next_page_token may return an error or restart from page one"],"whenToPreferThis":"Choose this endpoint when you need DuckDuckGo search results in structured JSON without setting up an account, API key, or subscription — ideal for agents that need ad-hoc web search with pay-per-call USDC pricing. Prefer it over Google SERP APIs when privacy-focused search results are desired, or when you want regional and date-filtered results with no monthly commitment. It is especially well-suited for agentic workflows that need search on demand.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:41:13.551Z","isFirstParty":false,"canonicalSlug":"serp402-duckduckgo-light-search-api-6b7dfc4d"}