diff --git a/index.js b/index.js
index 80198b2c3..46c6d60c2 100755
--- a/index.js
+++ b/index.js
@@ -11,16 +11,17 @@ const glob = require('glob')
 const Hash = require('./lib/hash')
 const libCoverage = require('istanbul-lib-coverage')
 const libHook = require('istanbul-lib-hook')
+const libReport = require('istanbul-lib-report')
 const mkdirp = require('make-dir')
 const Module = require('module')
 const onExit = require('signal-exit')
 const path = require('path')
+const reports = require('istanbul-reports')
 const resolveFrom = require('resolve-from')
 const rimraf = require('rimraf')
 const SourceMaps = require('./lib/source-maps')
 const testExclude = require('test-exclude')
 const uuid = require('uuid/v4')
-const api = require('istanbul-api')
 
 const debugLog = util.debuglog('nyc')
 
@@ -83,12 +84,6 @@ function NYC (config) {
   this.rootId = this.processInfo.root || this.generateUniqueID()
 
   this.hashCache = {}
-
-  this.config.reporting = config.reporting || {}
-  this.config.reporting['dir'] = this.reportDirectory()
-  this.config.reporting['report-config'] = this._reportConfig()
-  this.config.reporting['summarizer'] = this._reportSummarizer()
-  this.config.reporting['watermarks'] = this._reportWatermarks()
 }
 
 NYC.prototype._createTransform = function (ext) {
@@ -440,12 +435,21 @@ NYC.prototype.getCoverageMapFromAllCoverageFiles = function (baseDirectory) {
 }
 
 NYC.prototype.report = function () {
-  const config = api.config.loadObject(this.config)
-  const reporter = api.createReporter(config)
-  const map = this.getCoverageMapFromAllCoverageFiles()
+  var tree
+  var map = this.getCoverageMapFromAllCoverageFiles()
+  var context = libReport.createContext({
+    dir: this.reportDirectory(),
+    watermarks: this.config.watermarks
+  })
 
-  reporter.addAll(this.reporter)
-  reporter.write(map)
+  tree = libReport.summarizers.pkg(map)
+
+  this.reporter.forEach((_reporter) => {
+    tree.visit(reports.create(_reporter, {
+      skipEmpty: this.config.skipEmpty,
+      skipFull: this.config.skipFull
+    }), context)
+  })
 
   if (this._showProcessTree) {
     this.showProcessTree()
@@ -553,25 +557,4 @@ NYC.prototype.processInfoDirectory = function () {
   return path.resolve(this.tempDirectory(), 'processinfo')
 }
 
-NYC.prototype._reportConfig = function () {
-  const config = {}
-
-  this.reporter.forEach(_reporter => {
-    config[_reporter] = {
-      skipEmpty: this.config.skipEmpty,
-      skipFull: this.config.skipFull
-    }
-  })
-
-  return config
-}
-
-NYC.prototype._reportSummarizer = function () {
-  return 'pkg'
-}
-
-NYC.prototype._reportWatermarks = function () {
-  return this.config.watermarks
-}
-
 module.exports = NYC
diff --git a/package-lock.json b/package-lock.json
index 175be854e..5f3f526aa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -189,6 +189,7 @@
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
       "requires": {
         "sprintf-js": "~1.0.2"
       }
@@ -946,11 +947,6 @@
         "dot-prop": "^3.0.0"
       }
     },
-    "compare-versions": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/compare-versions/-/compare-versions-3.4.0.tgz",
-      "integrity": "sha512-tK69D7oNXXqUW3ZNo/z7NXTEz22TCF0pTE+YF9cxvaAM9XnkLo1fV621xCLrRR6aevJlKxExkss0vWqUCUpqdg=="
-    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -2172,7 +2168,8 @@
     "esprima": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
-      "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A=="
+      "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+      "dev": true
     },
     "esquery": {
       "version": "1.0.1",
@@ -2297,15 +2294,6 @@
         "object-assign": "^4.0.1"
       }
     },
-    "fileset": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/fileset/-/fileset-2.0.3.tgz",
-      "integrity": "sha1-jnVIqW08wjJ+5eZ0FocjozO7oqA=",
-      "requires": {
-        "glob": "^7.0.3",
-        "minimatch": "^3.0.3"
-      }
-    },
     "find-cache-dir": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-2.0.0.tgz",
@@ -3003,26 +2991,6 @@
       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=",
       "dev": true
     },
-    "istanbul-api": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/istanbul-api/-/istanbul-api-2.1.1.tgz",
-      "integrity": "sha512-kVmYrehiwyeBAk/wE71tW6emzLiHGjYIiDrc8sfyty4F8M02/lrgXSm+R1kXysmF20zArvmZXjlE/mg24TVPJw==",
-      "requires": {
-        "async": "^2.6.1",
-        "compare-versions": "^3.2.1",
-        "fileset": "^2.0.3",
-        "istanbul-lib-coverage": "^2.0.3",
-        "istanbul-lib-hook": "^2.0.3",
-        "istanbul-lib-instrument": "^3.1.0",
-        "istanbul-lib-report": "^2.0.4",
-        "istanbul-lib-source-maps": "^3.0.2",
-        "istanbul-reports": "^2.1.1",
-        "js-yaml": "^3.12.0",
-        "make-dir": "^1.3.0",
-        "minimatch": "^3.0.4",
-        "once": "^1.4.0"
-      }
-    },
     "istanbul-lib-coverage": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.3.tgz",
@@ -3106,6 +3074,7 @@
       "version": "3.12.1",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.12.1.tgz",
       "integrity": "sha512-um46hB9wNOKlwkHgiuyEVAybXBjwFUV0Z/RaHJblRd9DXltue9FTYvzCr9ErQrK9Adz5MU4gHWVaNUfdmrC8qA==",
+      "dev": true,
       "requires": {
         "argparse": "^1.0.7",
         "esprima": "^4.0.0"
@@ -5338,7 +5307,8 @@
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
-      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
     },
     "sshpk": {
       "version": "1.16.1",
diff --git a/package.json b/package.json
index cb85361d5..71c4fbc27 100644
--- a/package.json
+++ b/package.json
@@ -76,7 +76,6 @@
     "find-up": "^3.0.0",
     "foreground-child": "^1.5.6",
     "glob": "^7.1.3",
-    "istanbul-api": "^2.1.0",
     "istanbul-lib-coverage": "^2.0.3",
     "istanbul-lib-hook": "^2.0.3",
     "istanbul-lib-instrument": "^3.1.0",