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| GasNow | |
|---|---|
| Name | GasNow |
| Type | Blockchain gas price oracle |
| Founded | 2019 |
| Founder | Unknown |
| Headquarters | Houston, Texas |
| Area served | Global |
| Industry | Cryptocurrency services |
GasNow
GasNow was a third-party gas price estimator and oracle service that provided real-time transaction fee recommendations for the Ethereum blockchain. It acted as an intermediary between cryptocurrency wallets, decentralized applications, and nodes by aggregating fee data to suggest suitable gas prices for timely inclusion in blocks. The service gained visibility among users of MetaMask, Trust Wallet, and developer tooling during periods of volatile demand on Ethereum mainnet.
GasNow presented a public API and a web dashboard offering suggested gas prices at multiple confirmation targets, commonly labeled as "rapid", "fast", and "standard". It drew on live data from Infura, Alchemy, self-hosted Geth and OpenEthereum instances, and block explorers such as Etherscan. The platform's estimates influenced fee strategies in DeFi protocols including Uniswap, Compound, and Aave, as well as meta-transactions in Layer 2 integrations. Developers referenced GasNow alongside alternatives like Gas Station Network (GSN), ETH Gas Station, and bespoke oracle implementations.
GasNow emerged in 2019 amid growing demand for accessible gas price signals during the ICO aftermath and the rise of DeFi Summer. Market stress from events such as the DAO-related forks and later network congestion during NFT marketplaces like OpenSea and speculative token launches increased reliance on third-party estimators. The service iterated through API versions as EIP-1559 proposals matured within the Ethereum Improvement Proposal process, adapting outputs to reflect the introduction of base fee and priority fee constructs outlined in EIP-1559 adopted in the London upgrade. Periods of high-profile activity such as the CryptoKitties surge and the 2020 DeFi Summer illustrated the need for fee oracles.
GasNow provided multiple endpoints for real-time fee tiers, historical fee charts, and websocket streams for immediate updates. Its dashboard displayed live metrics comparable to those on CoinGecko, CoinMarketCap, and explorer services like Blockchair. The API served results consumable by MetaMask, WalletConnect, Argent, and custodial platforms such as Coinbase integrations. Additional offerings included percentile-based recommendations, mempool backlog visualizations similar to TxPool views in Geth, and compatibility hooks for Ethers.js and web3.js. Enterprises utilized GasNow in conjunction with blockchain analytics from firms like Chainalysis and Glassnode to inform transaction batching strategies.
The architecture combined polling of remote a RPC providers such as Infura and Alchemy with direct connections to full nodes running Geth and Nethermind. Data pipelines normalized transaction fee fields influenced by EIP-1559 fields—baseFeePerGas, maxFeePerGas, and maxPriorityFeePerGas—while employing caching layers built on Redis and time-series storage via InfluxDB or Prometheus. The API stack commonly used Node.js servers behind load balancers and CDNs like Cloudflare, with telemetry exported to observability platforms such as Grafana and Datadog. For resilience, deployments replicated across cloud providers like Amazon Web Services, Google Cloud Platform, and Microsoft Azure and leveraged container orchestration using Kubernetes.
Developers and wallets adopted GasNow for its low-latency responses and straightforward integration. It featured in developer discussions alongside tools from Consensys and analytics from Dune Analytics. During episodes of extreme congestion—triggered by events involving DeFi protocol exploits, initial DEX offerings, or popular NFT drops—GasNow's suggested fees affected users' willingness to retry transactions or adjust priority fees, indirectly shaping mempool dynamics monitored by mempool-style dashboards. Some exchanges and custodial services used fee estimators including GasNow to automate cost-effective withdrawals. The platform's prominence led to citations in community channels such as Ethereum Foundation forums and r/Ethereum discussions.
GasNow faced scrutiny over transparency and centralization risk, with critics citing dependence on centralized RPC providers like Infura and lack of published governance comparable to foundations such as the Ethereum Foundation. Users and developers debated the accuracy of tiered suggestions during moments when priority fees spiked, especially around the EIP-1559 transition, blaming oracles when transactions experienced delayed confirmations. Security analysts warned that reliance on any single estimator could expose wallet providers to fee manipulation vectors analogous to oracle attacks described in DeFi threat models. Debates in developer communities referenced alternatives advocating for diversified oracle aggregation and client-side estimation methods as practiced by teams at MetaMask, Parity Technologies, and other client implementers.
Category:Cryptocurrency services