{"uid":"cap_PWmNRPzxQZntajvbGu7Kc","slug":"jewelry-maker-calc-bead-count-133c09a5","name":"Jewelry Maker Calc – Bead Count","description":"Number of beads for a strand of a given finished length from bead size and spacing, with finished length and total weight.","url":"https://jewelry-calc.x402tookit.com/bead-count?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":["beadMm"],"properties":{"beadMm":{"type":"number","description":"Bead diameter (length along the strand) in mm"},"claspMm":{"type":"number","description":"Length taken by the clasp and end findings in mm (default 0)"},"lengthCm":{"type":"number","description":"Finished strand length in cm instead of inches"},"spacingMm":{"type":"number","description":"Extra space between beads (spacers, knots, wire loops) in mm (default 0)"},"gramsPerBead":{"type":"number","description":"Weight of one bead in grams, for the total"},"lengthInches":{"type":"number","description":"Finished strand length in inches (use lengthInches or lengthCm)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"beads":{"type":["null","number"]},"source":{"type":["null","string"]},"pitchMm":{"type":["null","number"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"usableMm":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"beadsPerInch":{"type":["null","number"]},"shortOfTargetMm":{"type":["null","number"]},"finishedLengthMm":{"type":["null","number"]},"finishedLengthInches":{"type":["null","number"]},"withOneMoreBeadInches":{"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_wseAavGzMJeDAkfDvmtkf","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":"Calculates the number of beads needed for a strand of a given finished length, given bead diameter and optional spacing, and returns total weight if bead weight is provided.","exampleAgentPrompt":"How many 8mm beads do I need to make an 18-inch necklace with a 15mm clasp and 1mm knots between each bead, and what will the total weight be if each bead weighs 0.5 grams?","exampleUseCases":[{"title":"Buying beads for a princess necklace","prompt":"I want to make a 18-inch necklace using 6mm round beads with no spacers and a 12mm clasp — how many beads do I need to buy?"},{"title":"Knotted pearl strand planning","prompt":"I'm stringing a 16-inch pearl necklace with 7mm pearls and 1.5mm knots between each pearl with a 20mm clasp. How many pearls do I need and what will the finished strand weigh if each pearl is 0.3 grams?"},{"title":"Bulk bead order for a 45cm beaded rope","prompt":"I need to make a 45cm strand using 4mm beads with 0.5mm wire loops between each bead. Can you tell me the bead count and beads-per-inch so I can place a bulk order?"}],"resultDescription":"Returns the number of beads needed for the strand, the pitch (center-to-center spacing in mm), beads per inch, usable strand length in mm, finished length in both mm and inches, how far the strand falls short or over the target, total weight in grams (if gramsPerBead is supplied), a plain-English summary, and edge-case notes or warnings.","failureModes":["Missing required beadMm parameter returns an error","Neither lengthInches nor lengthCm provided causes missing input error","Bead diameter larger than finished length returns a zero or error result","Negative or zero values for bead size or length produce invalid computation","Very large bead diameters relative to strand length may return 1 or 0 beads with a warning"],"whenToPreferThis":"Use this endpoint when a user needs to plan a beaded jewelry strand and wants to know exactly how many beads to buy or prepare, optionally accounting for spacing elements (knots, wire loops, spacers) and clasp length. Prefer this over generic arithmetic when the user wants a jewelry-specific breakdown including beads-per-inch, pitch, and total weight in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:08:13.353Z","isFirstParty":false,"canonicalSlug":"jewelry-maker-calc-bead-count-133c09a5"}