{"uid":"cap_BBSYqgJI2LCP9GJ2zjkBb","slug":"atmospheric-co2-concentration-mauna-loa-noaa-adea44ee","name":"Atmospheric CO2 Concentration (Mauna Loa / NOAA)","description":"Atmospheric CO2 concentration measured by NOAA at Mauna Loa: latest monthly ppm, yearly change, comparison with 10 years ago and with NOAA's first record (May 1974), and the recent series. U.S. Government data.","url":"https://api.vextorium.com/v1/atmospheric-co2?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"months":{"type":"integer"}}},"responseSchema":{"type":"json","example":{"last":{"ppm":426.07,"period":"2026-09","seasonally_adjusted_ppm":429.55},"series":[{"ppm":429.13,"period":"2026-07"},{"ppm":427.55,"period":"2026-08"}],"source":"Data provided by NOAA Global Monitoring Laboratory, Carbon Cycle and Greenhouse Gases group (https://gml.noaa.gov/ccgg/), Mauna Loa. U.S. Government data, not subject to copyright (17 U.S.C. 105). Series from May 1974 (NOAA measurements only).","first_record":{"ppm":333.19,"period":"1974-05"},"10_years_ago_ppm":401.23,"annual_change_ppm":1.7}},"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_UkgfsMMQWKOyyFQwHPE8l","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the latest monthly atmospheric CO2 concentration in ppm from the NOAA Mauna Loa observatory, along with annual change, 10-year comparison, first recorded value (1958), and a recent monthly series.","exampleAgentPrompt":"What's the latest atmospheric CO2 reading from Mauna Loa? Give me the current ppm, how much it's changed since last year, how it compares to 10 years ago, and show me the last 6 months of data.","exampleUseCases":[{"title":"Real-time climate dashboard widget","prompt":"Pull the current CO2 ppm level from Mauna Loa along with the annual change and the last 12 months of monthly readings so I can update my climate dashboard."},{"title":"Long-term CO2 trend analysis","prompt":"How does today's CO2 concentration compare to when measurements first started in 1958, and how much has it risen in the last 10 years?"},{"title":"Environmental newsletter data point","prompt":"I need the latest NOAA Mauna Loa CO2 reading for this month, including whether it's higher or lower than last year, to include in my weekly climate newsletter."}],"resultDescription":"A JSON object containing: the latest monthly CO2 reading (ppm, period, seasonally adjusted ppm), the annual change in ppm, the CO2 value from 10 years ago, the first recorded value (March 1958, 315.71 ppm), a recent monthly series array (each with ppm and period), and the NOAA data source attribution.","failureModes":["NOAA data may be temporarily unavailable or delayed, resulting in null values in the response","Requesting more months than available in the series may return a shorter array than requested","If the 'months' parameter is omitted, a default series length is returned which may not match the caller's expectation","Network timeout or payment verification failure may result in a non-200 response"],"whenToPreferThis":"Choose this endpoint when you need authoritative, real-time atmospheric CO2 data sourced directly from NOAA's Mauna Loa observatory — the gold standard for global CO2 monitoring. It is especially useful when you need historical context (1958 baseline, 10-year comparison, annual change) alongside the latest reading in a single call, without having to query NOAA's raw APIs directly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T12:37:15.457Z","isFirstParty":false,"canonicalSlug":"atmospheric-co2-concentration-mauna-loa-noaa-cebe1507"}