{"slug":"api-marketintelligenceapi-com-api-v1-markets-gas-f1e7dd","title":"Use before sending a transaction to pick the cheapest chain ($0.001)","host":"api.marketintelligenceapi.com","method":"GET","resource":"https://api.marketintelligenceapi.com/api/v1/markets/gas","category":"market","description":"Use before sending a transaction to pick the cheapest chain ($0.001). Returns base fee, priority fee percentiles and the USD cost of a transfer and a DEX swap on Ethereum, Base, Arbitrum, Optimism, Polygon and other EVM chains.","price_listed":0.001,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:137","eip155:42161","eip155:480","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"additionalProperties":false,"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"additionalProperties":true,"properties":{"example":{"description":"Example JSON response returned by this endpoint"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input","output"],"type":"object"},"history":[],"description_full":"Use before sending a transaction to pick the cheapest chain ($0.001). Returns base fee, priority fee percentiles and the USD cost of a transfer and a DEX swap on Ethereum, Base, Arbitrum, Optimism, Polygon and other EVM chains.","last_updated":"2026-09-28T14:01:25.731Z","schemes":["exact"]}