{"uid":"cap_A74kbe6mLz4EZjxWjOxrR","slug":"agentutility-content-simhash-4161e443","name":"AgentUtility Content SimHash","description":"Paid x402 endpoints organized into product clusters. USDC-settled on Base. MCP-callable. ERC-8004 identity registry agentId 47167.","url":"https://x402.agentutility.ai/content-simhash","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"source":"DIY SimHash (FNV-1a 64)","hash_hex":"0xa3f4b29d12c7e608","hash_int":"11814413120842008072","bit_count":64,"text_chars":86,"token_count":16,"shingle_size":3,"shingle_count":14}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ETsIPjQ2nd6IZnPa-HH2f","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a 64-bit SimHash fingerprint of input text using FNV-1a hashing over character shingles for near-duplicate detection","exampleAgentPrompt":"Compute a SimHash fingerprint for this text: 'The quick brown fox jumps over the lazy dog near the riverbank' — use a shingle size of 3 so I can compare it against other documents for near-duplicate detection.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the 64-bit SimHash as both hex string and integer, plus metadata: character count of input text, estimated token count, shingle size used, and number of shingles generated. Useful for Hamming-distance based near-duplicate comparison.","failureModes":["Empty or missing text input returns an error","Extremely long text may time out or be truncated","Invalid shingle size parameter causes a 400 error","Payment failure via x402 results in 402 response before processing"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap ($0.005 USDC) locality-sensitive hash for near-duplicate text detection without running your own hashing infrastructure. Ideal for deduplication pipelines, content similarity indexing, or plagiarism detection where exact matching is insufficient. Prefer over cryptographic hash endpoints when near-similarity (not exact equality) is the goal.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:11:51.580Z","isFirstParty":false}