{"uid":"cap_a3T8EhrSGdor1s0Jc262V","slug":"spyfu-3e4fe500","name":"SpyFu Most Valuable Keywords via Sponge","description":"GET /apis/serp_api/v2/seo/getMostValuableKeywords","url":"https://spyfu.x402.paysponge.com/apis/serp_api/v2/seo/getMostValuableKeywords","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","additionalProperties":true}},"additionalProperties":false}},"additionalProperties":false},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.010000","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.010000/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_L0mQn5u0n36BV7qtDRFan","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the most valuable SEO keywords for a domain based on traffic and ranking value, sourced from SpyFu via the Sponge x402 payment proxy","exampleAgentPrompt":"What are the most valuable SEO keywords for neil patel dot com right now? I want to see which keywords are driving the most organic search value for that domain.","exampleUseCases":[{"title":"Competitor keyword gap analysis","prompt":"Can you pull up the most valuable SEO keywords for hubspot.com? I want to understand which high-value organic keywords they're ranking for so I can figure out where my own site has gaps to exploit."},{"title":"Content strategy prioritization","prompt":"I'm planning our blog content calendar for next quarter. Can you get me the top SEO keywords driving the most organic value for our site, shopify.com, so I know which topics to prioritize first?"},{"title":"New niche market research","prompt":"I'm thinking about entering the personal finance space and want to understand the landscape. Can you show me the most valuable SEO keywords for nerdwallet.com so I can see what's actually worth targeting in that niche?"}],"resultDescription":"A list of the most valuable SEO keywords associated with the queried domain, including metrics such as estimated monthly search volume, ranking position, traffic value, and keyword competitiveness as provided by SpyFu data.","failureModes":["Missing or invalid domain query parameter returns an error or empty result","Payment failure via x402 protocol returns 402 status with no data","Domain not found in SpyFu database returns empty keyword list","Rate limiting or quota exceeded returns 429 or error response","Malformed query parameters return 400 bad request"],"whenToPreferThis":"Use this endpoint when you need to identify the highest-value organic SEO keywords for a specific domain — especially for competitive research, content strategy, or SEO prioritization. Prefer this over general SERP analysis endpoints when you want a ranked, value-weighted list specifically curated by SpyFu's scoring model rather than raw SERP data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:50:16.269Z","isFirstParty":false}