{"uid":"cap_GLI6irIcTvi8--s9fytwi","slug":"api-web3identity-com-0647e03b","name":"Web3Identity Gas Price API","description":"Current gas prices across Ethereum and L2 networks","url":"https://api.web3identity.com/api/gas","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":{"request":{"name":"vitalik.eth"},"response":{"_cache":{"age":70149,"hit":true,"stale":true},"cached":true,"source":"rpc","mainnet":{"fast":0,"slow":0,"unit":"gwei","standard":0},"cachedAt":"2026-06-16T01:25:51.324Z","timestamp":"2026-06-16T01:27:01.473Z"}},"exampleRequest":{"name":"vitalik.eth"},"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.005/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_23Eeid8mrEP_edZG4nNKS","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 current gas prices across Ethereum mainnet and Layer 2 networks","exampleAgentPrompt":"What are the current gas prices on Ethereum mainnet and the major L2 networks like Arbitrum and Optimism right now?","exampleUseCases":[{"title":"Find cheapest network for transaction","prompt":"I need to swap some tokens but I want to minimize fees. Which network has the lowest gas prices right now - Ethereum, Arbitrum, Optimism, or Polygon?"},{"title":"Monitor when to execute trade","prompt":"Gas fees are getting expensive. Can you check the current Ethereum gas prices and let me know if they drop below 30 gwei so I can execute my transaction?"},{"title":"Estimate total transaction cost","prompt":"I'm planning to interact with a smart contract on Ethereum. What are the current gas fees in both gwei and USD so I can estimate my total cost?"}],"resultDescription":"Returns current gas price data including base fee, priority fee (tip), and total gas cost estimates in gwei and USD across Ethereum mainnet and supported L2 networks such as Arbitrum, Optimism, and Polygon.","failureModes":["Network or RPC node unavailable — returns 503 or upstream error","Unsupported network requested — returns 400 with invalid network message","Rate limit exceeded — returns 429","Payment not processed — returns 402 payment required"],"whenToPreferThis":"Use this endpoint when an agent needs real-time gas fee data across Ethereum and L2 networks to decide optimal transaction timing, estimate transaction costs, or compare network fees. Prefer over on-chain RPC calls when aggregated multi-network data is needed in a single request.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:52:30.721Z","isFirstParty":false}