{"uid":"cap_tdRZ_Ms2yssAJIUxxB4Nj","slug":"jewelry-maker-calc-necklace-length-f05cd0af","name":"Jewelry Maker Calc – Necklace Length","description":"Name a necklace length (choker, princess, matinee, opera, rope) and where it sits, or suggest a length from neck size.","url":"https://jewelry-calc.x402tookit.com/necklace-length?utm_source=zero.xyz","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"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"style":{"type":"string","description":"collar, choker, princess, matinee, opera or rope, to get its length range"},"neckInches":{"type":"number","description":"Neck circumference in inches, to suggest a length per style (add the clasp allowance)"},"lengthInches":{"type":"number","description":"A chain length in inches, to name it (use this or style)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"clasp":{"type":["null","string"]},"style":{"type":["null","string"]},"sitsAt":{"type":["null","string"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"lengthCm":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"neckInches":{"type":["null","number"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"lengthInches":{"type":["null","number"]},"snugChokerInches":{"type":["null","number"]},"comfortableChokerInches":{"type":["null","number"]},"princessSuggestionInches":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/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_XwuBtuhcrtZSOQvE2Pe6X","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the length range, body placement, and style name for a necklace given a style name, neck circumference, or chain length in inches.","exampleAgentPrompt":"What necklace style is a 20-inch chain, and where does it sit on the body?","exampleUseCases":[{"title":"Naming a chain by length","prompt":"I have a 16-inch gold chain — what necklace style is that called and where will it sit on me?"},{"title":"Choosing a style for a neck size","prompt":"My neck is 14.5 inches around. What necklace length would you suggest for a princess style, and what's the clasp allowance I should add?"},{"title":"Looking up a style's length range","prompt":"What is the standard length range for a matinee necklace in both inches and centimetres, and where does it fall on the chest?"}],"resultDescription":"Returns a JSON object with the identified or suggested necklace style name, its length range in inches, equivalent length in centimetres, a description of where it sits on the body, clasp allowance notes, and — when a neck measurement is provided — suggested choker and princess lengths tailored to that neck size. Also includes a human-readable summary and disclaimer.","failureModes":["Missing all query parameters returns an error or empty result — at least one of style, lengthInches, or neckInches must be provided","Unrecognized style string returns null or an error response","Out-of-range neckInches values may produce unexpected suggestions","Conflicting parameters (e.g. both style and lengthInches) may be resolved by precedence with no warning"],"whenToPreferThis":"Use this endpoint when you need to look up standard necklace length classifications, find where a given chain length sits on the body, or suggest a style for a known neck circumference. It is purpose-built for jewelry makers, shoppers, and stylists who need authoritative length-to-style mappings in both imperial and metric units, and it covers all major styles from collar to rope.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:12:39.696Z","isFirstParty":false,"canonicalSlug":"jewelry-maker-calc-necklace-length-f05cd0af"}