curl --request GET \
  --url https://namada-indexer-01.originstake.com/api/v1/chain/parameters \
  --header 'Key: <api-key>'

{
  "200": {
    "unbondingLength": "<string>",
    "pipelineLength": "<string>",
    "epochsPerYear": "<string>",
    "apr": "<string>",
    "nativeTokenAddress": "<string>",
    "chainId": "<string>",
    "genesisTime": "<string>",
    "minDuration": "<string>",
    "minNumOfBlocks": "<string>",
    "maxBlockTime": "<string>",
    "checksums": {},
    "epochSwitchBlocksDelay": "<string>",
    "cubicSlashingWindowLength": "<string>"
  }
}