{"uid":"cap_haOno31BTLkNpKvt-YEop","slug":"scriptmasterlabs-gas-tracker-api-40175a55","name":"ScriptMasterLabs Gas Tracker API","description":"Pay-per-call crypto, RWA, federal, SEC, Section 8/HUD housing, and compliance APIs via x402. Primary: USDC on Base (eip155:8453). Also accepts Global Dollar (USDG) on Robinhood Chain (eip155:4663) via sovereign X-PAYMENT-TX. Hyphen routes only (e.g. /x402/gas-tracker, /x402/pha-lookup, /x402/sec-8k). MARKETPLACE REVIEW: use free /x402/playground/* (no key, no payment). Production /x402/* returns 402 unless paid via x402 or X-Api-Market-Key / X-API-Key from seller dashboard.","url":"https://mcp-x402-discovery.onrender.com/x402/gas-tracker","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"chain":{"type":"string"}}}}},"output":{"properties":{"example":{}}}}},"responseSchema":{"example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_E8GfMmJi5LituSUQnDuU5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time gas price data for a specified blockchain network, payable via x402 micropayment protocol","exampleAgentPrompt":"What are the current gas prices on Base right now? I want to know if it's a good time to send a transaction.","exampleUseCases":[{"title":"Pre-transaction gas check on Base","prompt":"Before I send this USDC transfer on Base, can you pull the current gas fees so I know what it'll cost me?"},{"title":"DeFi bot gas optimization","prompt":"I need real-time gas prices for the Base network so my trading bot can decide whether to execute or wait for lower fees."},{"title":"Cross-chain fee comparison","prompt":"Can you get the current gas tracker data for Ethereum mainnet so I can compare it against Base fees before deciding where to execute my swap?"}],"resultDescription":"Returns current gas price data for the specified blockchain network, including fee estimates (likely base fee, priority fee, and/or gwei values) relevant for transaction planning and cost estimation.","failureModes":["402 Payment Required if no valid x402 payment or API key is provided","Invalid or unsupported chain parameter returns error","Network timeout if the underlying chain node is unreachable","Empty or null response if the chain has no recent gas data"],"whenToPreferThis":"Use this endpoint when you need real-time on-chain gas price data for supported networks (especially Base/eip155:8453) and are operating in a pay-per-call micropayment context using x402/USDC. Prefer this over free gas trackers when building autonomous agents that need programmatic, low-friction payment without API key management overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:53:04.846Z","isFirstParty":false}