These are the Android APIs.

See:
Description

Packages

android
android.access
android.app
android.content
android.content.pm
android.dalvik
android.database
android.database.sqlite
android.ddm
android.ddmc
android.debug
android.drm
android.drm.mobile1
android.graphics
android.graphics.drawable
android.graphics.drawable.shapes
android.graphics.glutils
android.hardware
android.ipc
android.lang
android.location
android.media
android.net
android.net.http
android.opengl
android.os
android.pim
android.policy
android.provider
android.sax
android.security
android.server
android.server.am
android.server.checkin
android.server.data
android.server.search
android.server.status
android.speech.recognition
android.speech.recognition.impl
android.syncml.pim
android.syncml.pim.vcalendar
android.syncml.pim.vcard
android.telephony
android.telephony._tests
android.telephony.gsm
android.telephony.gsm._tests
android.telephony.gsm.stk
android.telephony.test
android.test
android.test.mock
android.text
android.text.method
android.text.style
android.text.util
android.util
android.view
android.view.animation
android.webkit
android.widget
android.xml.dom
android.xml.parsers
com.google.android.collect
com.google.android.gdata.client
com.google.android.googleapps
com.google.android.gtalkservice
com.google.android.jsr239
com.google.android.location
com.google.android.maps
com.google.android.mms
com.google.android.mms.pdu
com.google.android.providers.googleapps
com.google.android.street
com.google.android.tests
com.google.android.tests.core
com.google.android.util
com.google.common
com.google.common.android
com.google.common.geom
com.google.common.graphics
com.google.common.graphics.android
com.google.common.io
com.google.common.io.android
com.google.common.io.protocol
com.google.common.ui
com.google.common.util
com.google.common.util.text
com.google.googlenav
com.google.googlenav.gps
com.google.googlenav.map
com.google.googlenav.proto
com.google.googlenav.ui
com.google.image.compression.jpeg
com.google.wireless.gdata
com.google.wireless.gdata.calendar.client
com.google.wireless.gdata.calendar.data
com.google.wireless.gdata.calendar.parser.xml
com.google.wireless.gdata.calendar.serializer.xml
com.google.wireless.gdata.client
com.google.wireless.gdata.contacts.client
com.google.wireless.gdata.contacts.data
com.google.wireless.gdata.contacts.parser.xml
com.google.wireless.gdata.contacts.serializer.xml
com.google.wireless.gdata.data
com.google.wireless.gdata.parser
com.google.wireless.gdata.parser.xml
com.google.wireless.gdata.serializer
com.google.wireless.gdata.serializer.xml
com.google.wireless.gdata.spreadsheets.client
com.google.wireless.gdata.spreadsheets.data
com.google.wireless.gdata.spreadsheets.parser.xml
com.google.wireless.gdata.spreadsheets.serializer.xml
com.google.wireless.gdata.subscribedfeeds.client
com.google.wireless.gdata.subscribedfeeds.data
com.google.wireless.gdata.subscribedfeeds.parser.xml
com.google.wireless.gdata.subscribedfeeds.serializer.xml
com.ibm.icu4jni.charset
com.ibm.icu4jni.common
com.ibm.icu4jni.converters
com.ibm.icu4jni.lang
com.ibm.icu4jni.math
com.ibm.icu4jni.regex
com.ibm.icu4jni.text
java.io
java.lang
java.lang.annotation
java.lang.instrument
java.lang.ref
java.lang.reflect
java.math
java.net
java.nio
java.nio.channels
java.nio.channels.spi
java.nio.charset
java.nio.charset.spi
java.security
java.security.acl
java.security.cert
java.security.interfaces
java.security.spec
java.sql
java.text
java.util
java.util.concurrent
java.util.concurrent.atomic
java.util.concurrent.locks
java.util.jar
java.util.logging
java.util.prefs
java.util.regex
java.util.zip
javax.crypto
javax.crypto.interfaces
javax.crypto.spec
javax.microedition.khronos.opengles
javax.microedition.lcdui
javax.microedition.lcdui.game
javax.net
javax.net.ssl
javax.security.auth
javax.security.auth.callback
javax.security.auth.login
javax.security.auth.x500
javax.security.cert
javax.sound.midi
javax.sound.midi.spi
javax.sound.sampled
javax.sound.sampled.spi
javax.sql
javax.xml.parsers
junit.extensions
junit.framework
junit.runner
junit.textui
org.apache.commons.codec
org.apache.commons.codec.binary
org.apache.commons.codec.language
org.apache.commons.codec.net
org.apache.commons.httpclient
org.apache.commons.httpclient.auth
org.apache.commons.httpclient.cookie
org.apache.commons.httpclient.methods
org.apache.commons.httpclient.methods.multipart
org.apache.commons.httpclient.params
org.apache.commons.httpclient.protocol
org.apache.commons.httpclient.util
org.apache.commons.logging
org.apache.commons.logging.impl
org.apache.harmony.annotation.internal.nls
org.apache.harmony.archive.internal.nls
org.apache.harmony.archive.util
org.apache.harmony.auth.internal.nls
org.apache.harmony.crypto.internal
org.apache.harmony.crypto.internal.nls
org.apache.harmony.instrument.internal.nls
org.apache.harmony.kernel.vm
org.apache.harmony.logging.internal.nls
org.apache.harmony.luni.internal.locale
org.apache.harmony.luni.internal.net.www
org.apache.harmony.luni.internal.net.www.protocol.file
org.apache.harmony.luni.internal.net.www.protocol.ftp
org.apache.harmony.luni.internal.net.www.protocol.http
org.apache.harmony.luni.internal.net.www.protocol.https
org.apache.harmony.luni.internal.net.www.protocol.jar
org.apache.harmony.luni.internal.nls
org.apache.harmony.luni.internal.reflect
org.apache.harmony.luni.net
org.apache.harmony.luni.platform
org.apache.harmony.luni.util
org.apache.harmony.math.internal.nls
org.apache.harmony.misc
org.apache.harmony.misc.internal.nls
org.apache.harmony.nio
org.apache.harmony.nio.internal
org.apache.harmony.nio.internal.nls
org.apache.harmony.niochar.internal.nls
org.apache.harmony.prefs.internal.nls
org.apache.harmony.security
org.apache.harmony.security.asn1
org.apache.harmony.security.fortress
org.apache.harmony.security.internal.nls
org.apache.harmony.security.pkcs10
org.apache.harmony.security.pkcs7
org.apache.harmony.security.pkcs8
org.apache.harmony.security.provider.cert
org.apache.harmony.security.provider.crypto
org.apache.harmony.security.utils
org.apache.harmony.security.x501
org.apache.harmony.security.x509
org.apache.harmony.security.x509.tsp
org.apache.harmony.sound.internal.nls
org.apache.harmony.sound.utils
org.apache.harmony.sql.internal.nls
org.apache.harmony.text
org.apache.harmony.text.internal.nls
org.apache.harmony.xnet.internal.nls
org.apache.harmony.xnet.provider.jsse
org.apache.http
org.apache.http.auth
org.apache.http.auth.params
org.apache.http.client
org.apache.http.client.methods
org.apache.http.client.methods.multipart
org.apache.http.client.params
org.apache.http.client.protocol
org.apache.http.client.utils
org.apache.http.conn
org.apache.http.conn.params
org.apache.http.conn.ssl
org.apache.http.conn.util
org.apache.http.cookie
org.apache.http.cookie.params
org.apache.http.entity
org.apache.http.impl
org.apache.http.impl.auth
org.apache.http.impl.client
org.apache.http.impl.conn
org.apache.http.impl.conn.tsccm
org.apache.http.impl.cookie
org.apache.http.impl.entity
org.apache.http.impl.io
org.apache.http.io
org.apache.http.message
org.apache.http.params
org.apache.http.protocol
org.apache.http.util
org.apache.http.util.concurrent
org.bluez
org.bouncycastle.asn1
org.bouncycastle.asn1.cmp
org.bouncycastle.asn1.cms
org.bouncycastle.asn1.cryptopro
org.bouncycastle.asn1.esf
org.bouncycastle.asn1.ess
org.bouncycastle.asn1.gnu
org.bouncycastle.asn1.iana
org.bouncycastle.asn1.icao
org.bouncycastle.asn1.misc
org.bouncycastle.asn1.mozilla
org.bouncycastle.asn1.nist
org.bouncycastle.asn1.ocsp
org.bouncycastle.asn1.oiw
org.bouncycastle.asn1.pkcs
org.bouncycastle.asn1.teletrust
org.bouncycastle.asn1.tsp
org.bouncycastle.asn1.util
org.bouncycastle.asn1.x509
org.bouncycastle.asn1.x509.qualified
org.bouncycastle.asn1.x509.sigi
org.bouncycastle.asn1.x9
org.bouncycastle.crypto
org.bouncycastle.crypto.agreement
org.bouncycastle.crypto.digests
org.bouncycastle.crypto.encodings
org.bouncycastle.crypto.engines
org.bouncycastle.crypto.generators
org.bouncycastle.crypto.io
org.bouncycastle.crypto.macs
org.bouncycastle.crypto.modes
org.bouncycastle.crypto.paddings
org.bouncycastle.crypto.params
org.bouncycastle.crypto.signers
org.bouncycastle.crypto.util
org.bouncycastle.i18n
org.bouncycastle.i18n.filter
org.bouncycastle.jce
org.bouncycastle.jce.interfaces
org.bouncycastle.jce.netscape
org.bouncycastle.jce.provider
org.bouncycastle.jce.spec
org.bouncycastle.openssl
org.bouncycastle.util
org.bouncycastle.util.encoders
org.bouncycastle.x509
org.bouncycastle.x509.extension
org.json
org.kxml2.io
org.kxml2.kdom
org.kxml2.wap
org.kxml2.wap.syncml
org.kxml2.wap.wml
org.kxml2.wap.wv
org.w3c.dom
org.xml.sax
org.xml.sax.ext
org.xml.sax.helpers
org.xmlpull.v1
org.xmlpull.v1.sax2
SQLite
SQLite.JDBC2y
sun.misc

These are the Android APIs.