{"uid":"cap_zu4Dpw854Vz47EiuV89kn","slug":"periodic-table-data-api-40198ac5","name":"Periodic Table Data API","description":"Periodic table reference returning full physical and chemical data — atomic mass, category, period, group, electron shells, melting and boiling points — for any element by name, symbol, or atomic number. Useful for science education tools, materials databases, and chemistry-adjacent content generation.","url":"https://x402.forgemesh.io/periodic-table-data","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_aDUyQ2-1DHSGhAez_wwEK","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":"Returns full physical and chemical data for any chemical element, looked up by name, symbol, or atomic number","exampleAgentPrompt":"Can you pull up the full periodic table data for gold — atomic mass, category, period, group, electron shells, melting and boiling points?","exampleUseCases":null,"resultDescription":"A structured record containing full physical and chemical properties of the requested element, including atomic mass, category (e.g. transition metal), period, group, electron shell configuration, melting point, and boiling point.","failureModes":["Unknown element name, symbol, or atomic number returns an error or empty result","Ambiguous input (e.g. numeric string that could be misinterpreted) may cause lookup failure","Malformed input type returns a validation error","Out-of-range atomic number returns no data"],"whenToPreferThis":"Use this endpoint when you need comprehensive physical and chemical data for a specific chemical element and have the element's name, symbol, or atomic number. Ideal for science education tools, chemistry content generation, materials databases, and any application needing structured element data without building or maintaining a local periodic table dataset.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:54:36.145Z","isFirstParty":false}