{"uid":"cap_jneANR-dXs8-0w1H4AEp1","slug":"quantaflow-duckduckgo-serp-search-90011666","name":"QuantaFlow DuckDuckGo SERP Search","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/serp-duckduckgo?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"body":{"type":"string","description":"Optional JSON body forwarded to POST requests."},"path":{"type":"string","description":"Path below the selected upstream origin."},"query":{"type":"object"},"method":{"enum":["GET","POST"],"type":"string"}}},"responseSchema":{"description":"The upstream response body and content type are passed through after successful payment."},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mydRDVJx0yU7Ua-HYxGQi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a DuckDuckGo search engine results page (SERP) query via the x402 pay-per-call gateway and returns search results","exampleAgentPrompt":"Search DuckDuckGo for 'best open-source LLM frameworks 2024' and give me the top results including titles and URLs.","exampleUseCases":[{"title":"Research competitor product mentions","prompt":"Search DuckDuckGo for 'Acme Corp pricing reviews 2024' and give me the top results so I can see what people are saying about them."},{"title":"Find recent news on a topic","prompt":"Look up 'EU AI Act enforcement 2025' on DuckDuckGo and show me the most relevant results with their headlines and links."},{"title":"Discover technical documentation","prompt":"Search DuckDuckGo for 'Rust async tokio tutorial site:docs.rs OR site:github.com' and return the top five results with URLs and descriptions."}],"resultDescription":"Returns the upstream DuckDuckGo SERP response body (typically JSON or HTML depending on query parameters) including search result titles, URLs, and snippets, along with the content type header, after successful x402 micropayment of $0.01 USDC.","failureModes":["Payment failure: insufficient USDC balance or invalid x402 payment header returns 402 Payment Required","Invalid query parameters: malformed query object may yield empty or error results from upstream","DuckDuckGo rate limiting: upstream may throttle or block requests returning error status","Upstream unavailability: DuckDuckGo service downtime causes pass-through error","Missing required path or query fields: gateway may return 400 Bad Request"],"whenToPreferThis":"Choose this endpoint when you need privacy-respecting web search results via DuckDuckGo in a pay-per-call model with no subscription required; ideal for AI agents that make infrequent or burst searches and want to avoid API key management, or when operating in a web3/crypto-native environment where x402 micropayments are already integrated.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T00:55:57.899Z","isFirstParty":false,"canonicalSlug":"quantaflow-duckduckgo-serp-search-90011666"}