{"uid":"cap_cveqByVVc1BKxggAJIS8Z","slug":"forgemesh-chemical-element-lookup-e4fa1d5b","name":"ForgeMesh Chemical Element Lookup","description":"Chemical element reference: look up any of the 118 known elements by atomic number, symbol, or name and get atomic mass, electron configuration, electronegativity, melting/boiling points, density, and phase at room temperature. For chemistry homework, materials science, and lab-prep agents needing a quick, sourced fact check.","url":"https://x402.forgemesh.io/atomic-number-lookup","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"element":{"type":"string","description":"symbol, name, or atomic number"}}},"responseSchema":{"type":"json","example":{"name":"Iron","symbol":"Fe","category":"transition metal","atomic_mass":55.845,"atomic_number":26,"melting_point_k":1811.15}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_i3lvgmiB7XXVgD6lS-E0r","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up detailed physical and chemical properties for any of the 118 known elements by atomic number, symbol, or name.","exampleAgentPrompt":"What are the atomic mass, electron configuration, electronegativity, melting point, and boiling point of tungsten — can you look that up for me?","exampleUseCases":null,"resultDescription":"Returns detailed elemental data including atomic mass, electron configuration, electronegativity, melting point, boiling point, density, and phase at room temperature for the requested element.","failureModes":["Element not found if input string doesn't match any known symbol, name, or atomic number","Invalid atomic number (outside 1–118) returns an error","Ambiguous input (e.g. partial names) may fail to match","Network timeout or service unavailability returns a 5xx error","Payment failure via x402 protocol returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need fast, structured, sourced physical and chemical properties for a specific element — ideal for chemistry homework assistance, lab preparation, materials science research, or any agent needing a reliable periodic table reference without scraping Wikipedia.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:55:08.480Z","isFirstParty":false}