{"uid":"cap_a4ZXk8MeKAO-c0PM8hYYD","slug":"api-carbon-cashmere-de-3aeb25e7","name":"Carbon Cashmere Gas Price API","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/gas","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"eth_gas":{"fast_gwei":"0.08","slow_gwei":"0.03","standard_gwei":"0.05"},"btc_fees":{"fee_estimates":{"1":12,"6":5}}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tpyq_4QrHieIIktnpb3RQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time Ethereum gas prices (slow/standard/fast in gwei with base fee) and Bitcoin transaction fee estimates (sat/vB with mempool stats)","exampleAgentPrompt":"What are the current Ethereum gas prices — slow, standard, and fast in gwei — and the current base fee, plus Bitcoin fee estimates in sat/vB with mempool stats so I can decide when to submit my transactions?","exampleUseCases":null,"resultDescription":"Returns an object with eth_gas containing slow/standard/fast gas prices in gwei and base fee for Ethereum, plus btc_fees containing fee estimates in sat/vB and current mempool statistics for Bitcoin.","failureModes":["Upstream node unavailable — returns 5xx with service unavailable error","Rate limit exceeded — returns 429 Too Many Requests","Payment required — returns 402 if x402 micropayment not included","Malformed request parameters — returns 400 with validation error"],"whenToPreferThis":"Use this endpoint when you need real-time, dual-chain (ETH + BTC) fee data in a single call, especially for AI agent workflows focused on transaction cost optimization or timing. Ideal when you need both Ethereum gwei tiers with base fee and Bitcoin sat/vB estimates together rather than querying separate APIs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:57:45.103Z","isFirstParty":false}