| INKAction | INKMgmtCounter |
| INKCacheKey | INKMgmtFloat |
| INKConfig; also see Plugin Configuration Functions | INKMgmtInt |
| INKCont; also see Continuation Functions | INKMgmtString |
| INKEvent; also in this example | INKMimeParser |
| INKEventFunc; see also INKContCreate | INKMLoc see About HTTP Headers and INKUrlClone |
| INKFile | INKMutex; also INKContCreate |
| INKHttpAltInfo; see also HTTP Alternate Selection | INKPluginRegistrationInfo |
| INKHttpHookID | INKSDKVersion |
| INKHttpParser; see INKHttpParserClear and INKHttpParserCreate | INKStat |
| INKHttpSsn | INKStatType |
| INKHttpStatus | INKTextLogObjectCreate |
| INKHttpTxn; see HTTP Transactions | INKTextLogObjectHeaderSet |
| INKHttpType; see INKHttpHdrTypeGet and INKHttpHdrTypeSet | INKTextLogObjectRollingEnabledSet |
| INKIOBuffer; see IO Buffers | INKTextLogObjectRollingIntervalSecSet |
| INKIOBufferBlock; see IO Buffers | INKTextLogObjectRollingOffsetHrSet |
| INKIOBufferData; see IO Buffers | INKThreadFunc |
| INKIOBufferReader; see IO Buffers | INKVIO; also IO Guide |
| INKMBuffer; also URL Functions |