{"uid":"cap_mu9Gm3a3BwAB6pFHJJKVO","slug":"datamuse-word-predecessors-lookup-196c40be","name":"Datamuse Word Predecessors Lookup","description":"Words that frequently precede the given word q (e.g. havoc to wreak). Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/datamuse-predecessors","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_EAmSYz1FFMeq878S2r8ya","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns words that frequently precede a given word (e.g. 'wreak' for the query 'havoc'), powered by the Datamuse lexical API.","exampleAgentPrompt":"What words most commonly come right before 'havoc' in English — like 'wreak havoc'? Give me the full list of typical predecessors for that word.","exampleUseCases":null,"resultDescription":"A JSON array of words (with associated scores or frequency metadata) that commonly precede the queried word in natural English usage, drawn from the Datamuse lexical database.","failureModes":["Empty result array if the word has no known common predecessors in the corpus","No results for rare, coined, or misspelled words","HTTP 402 if payment is not provided or fails","Unexpected results if a multi-word phrase is passed instead of a single word"],"whenToPreferThis":"Choose this endpoint when you need to find words that typically appear immediately before a specific word — useful for writing assistance, NLP feature engineering, collocation research, or discovering idiomatic phrases. Prefer this over a general thesaurus when you specifically need predecessor collocations rather than synonyms, antonyms, or successors.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:06:33.163Z","isFirstParty":false}