diff --git a/web3.js/.travis.yml b/web3.js/.travis.yml
index 3cf08d0664..979a4bed38 100644
--- a/web3.js/.travis.yml
+++ b/web3.js/.travis.yml
@@ -10,6 +10,7 @@ script:
   - for example in examples/*.js; do node $example; done
 after_success:
   - npm run coveralls
+  - npm run codecov
 
 before_deploy:
   - rm -rf deploy
diff --git a/web3.js/README.md b/web3.js/README.md
index 9ced8ad971..30d21c1a0b 100644
--- a/web3.js/README.md
+++ b/web3.js/README.md
@@ -1,6 +1,8 @@
 [![Build status](https://api.travis-ci.org/solana-labs/solana-web3.js.svg?branch=master)](https://travis-ci.org/solana-labs/solana-web3.js)
 [![Coverage Status](https://coveralls.io/repos/github/solana-labs/solana-web3.js/badge.svg?branch=master)](https://coveralls.io/github/solana-labs/solana-web3.js?branch=master)
+[![codecov](https://codecov.io/gh/solana-labs/solana-web3.js/branch/master/graph/badge.svg)](https://codecov.io/gh/solana-labs/solana-web3.js)
 [![npm](https://img.shields.io/npm/v/@solana/web3.js.svg?style=flat)](https://www.npmjs.com/package/@solana/web3.js)
+[![esdoc](https://solana-labs.github.io/solana-web3.js/badge.svg)](https://solana-labs.github.io/solana-web3.js/)
 
 # Solana JavaScript API
 
diff --git a/web3.js/package-lock.json b/web3.js/package-lock.json
index ce8fe96285..7bda18ad02 100644
--- a/web3.js/package-lock.json
+++ b/web3.js/package-lock.json
@@ -256,7 +256,6 @@
       "version": "5.5.2",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
       "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
-      "dev": true,
       "requires": {
         "co": "4.6.0",
         "fast-deep-equal": "1.1.0",
@@ -609,6 +608,11 @@
         "sprintf-js": "1.0.3"
       }
     },
+    "argv": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/argv/-/argv-0.0.2.tgz",
+      "integrity": "sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas="
+    },
     "arr-diff": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
@@ -676,8 +680,7 @@
     "asn1": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
-      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
-      "dev": true
+      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y="
     },
     "asn1.js": {
       "version": "4.10.1",
@@ -693,8 +696,7 @@
     "assert-plus": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
-      "dev": true
+      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
     },
     "assign-symbols": {
       "version": "1.0.0",
@@ -732,8 +734,7 @@
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
-      "dev": true
+      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
     },
     "atob": {
       "version": "2.1.0",
@@ -744,8 +745,7 @@
     "aws-sign2": {
       "version": "0.7.0",
       "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
-      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=",
-      "dev": true
+      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg="
     },
     "aws4": {
       "version": "1.7.0",
@@ -1706,8 +1706,7 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
     "base": {
       "version": "0.11.2",
@@ -1789,7 +1788,6 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
       "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
-      "dev": true,
       "optional": true,
       "requires": {
         "tweetnacl": "0.14.5"
@@ -1799,7 +1797,6 @@
           "version": "0.14.5",
           "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
           "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-          "dev": true,
           "optional": true
         }
       }
@@ -1896,7 +1893,6 @@
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "dev": true,
       "requires": {
         "balanced-match": "1.0.0",
         "concat-map": "0.0.1"
@@ -2159,8 +2155,7 @@
     "caseless": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
-      "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=",
-      "dev": true
+      "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
     },
     "center-align": {
       "version": "0.1.3",
@@ -2317,8 +2312,7 @@
     "co": {
       "version": "4.6.0",
       "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
-      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
-      "dev": true
+      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ="
     },
     "code-point-at": {
       "version": "1.1.0",
@@ -2326,6 +2320,107 @@
       "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
       "dev": true
     },
+    "codecov": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.0.4.tgz",
+      "integrity": "sha512-KJyzHdg9B8U9LxXa7hS6jnEW5b1cNckLYc2YpnJ1nEFiOW+/iSzDHp+5MYEIQd9fN3/tC6WmGZmYiwxzkuGp/A==",
+      "requires": {
+        "argv": "0.0.2",
+        "ignore-walk": "3.0.1",
+        "request": "2.88.0",
+        "urlgrey": "0.4.4"
+      },
+      "dependencies": {
+        "aws4": {
+          "version": "1.8.0",
+          "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
+          "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ=="
+        },
+        "extend": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
+          "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
+        },
+        "har-validator": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-5.1.0.tgz",
+          "integrity": "sha512-+qnmNjI4OfH2ipQ9VQOw23bBd/ibtfbVdK2fYbY4acTDqKTW/YDp9McimZdDbG8iV9fZizUqQMD5xvriB146TA==",
+          "requires": {
+            "ajv": "5.5.2",
+            "har-schema": "2.0.0"
+          }
+        },
+        "mime-db": {
+          "version": "1.35.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.35.0.tgz",
+          "integrity": "sha512-JWT/IcCTsB0Io3AhWUMjRqucrHSPsSf2xKLaRldJVULioggvkJvggZ3VXNNSRkCddE6D+BUI4HEIZIA2OjwIvg=="
+        },
+        "mime-types": {
+          "version": "2.1.19",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.19.tgz",
+          "integrity": "sha512-P1tKYHVSZ6uFo26mtnve4HQFE3koh1UWVkp8YUC+ESBHe945xWSoXuHHiGarDqcEZ+whpCDnlNw5LON0kLo+sw==",
+          "requires": {
+            "mime-db": "1.35.0"
+          }
+        },
+        "oauth-sign": {
+          "version": "0.9.0",
+          "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
+          "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ=="
+        },
+        "qs": {
+          "version": "6.5.2",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
+          "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
+        },
+        "request": {
+          "version": "2.88.0",
+          "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
+          "integrity": "sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==",
+          "requires": {
+            "aws-sign2": "0.7.0",
+            "aws4": "1.8.0",
+            "caseless": "0.12.0",
+            "combined-stream": "1.0.6",
+            "extend": "3.0.2",
+            "forever-agent": "0.6.1",
+            "form-data": "2.3.2",
+            "har-validator": "5.1.0",
+            "http-signature": "1.2.0",
+            "is-typedarray": "1.0.0",
+            "isstream": "0.1.2",
+            "json-stringify-safe": "5.0.1",
+            "mime-types": "2.1.19",
+            "oauth-sign": "0.9.0",
+            "performance-now": "2.1.0",
+            "qs": "6.5.2",
+            "safe-buffer": "5.1.2",
+            "tough-cookie": "2.4.3",
+            "tunnel-agent": "0.6.0",
+            "uuid": "3.3.2"
+          }
+        },
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        },
+        "tough-cookie": {
+          "version": "2.4.3",
+          "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
+          "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
+          "requires": {
+            "psl": "1.1.29",
+            "punycode": "1.4.1"
+          }
+        },
+        "uuid": {
+          "version": "3.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+          "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
+        }
+      }
+    },
     "collection-visit": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/collection-visit/-/collection-visit-1.0.0.tgz",
@@ -2367,7 +2462,6 @@
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
       "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
-      "dev": true,
       "requires": {
         "delayed-stream": "1.0.0"
       }
@@ -2393,8 +2487,7 @@
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
     },
     "concat-stream": {
       "version": "1.6.2",
@@ -2435,8 +2528,7 @@
     "core-util-is": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
-      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
-      "dev": true
+      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
     "coveralls": {
       "version": "3.0.0",
@@ -2605,7 +2697,6 @@
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
       "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
-      "dev": true,
       "requires": {
         "assert-plus": "1.0.0"
       }
@@ -2784,8 +2875,7 @@
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
-      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
-      "dev": true
+      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
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     "des.js": {
       "version": "1.0.0",
@@ -2915,7 +3005,6 @@
       "version": "0.1.1",
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-      "dev": true,
       "optional": true,
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@@ -3803,20 +3892,17 @@
     "extsprintf": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
-      "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
-      "dev": true
+      "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
     },
     "fast-deep-equal": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
-      "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
-      "dev": true
+      "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ="
     },
     "fast-json-stable-stringify": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
-      "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I=",
-      "dev": true
+      "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
     },
     "fast-levenshtein": {
       "version": "2.0.6",
@@ -4136,14 +4222,12 @@
     "forever-agent": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
-      "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=",
-      "dev": true
+      "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE="
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     "form-data": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.3.2.tgz",
       "integrity": "sha1-SXBJi+YEwgwAXU9cI67NIda0kJk=",
-      "dev": true,
       "requires": {
         "asynckit": "0.4.0",
         "combined-stream": "1.0.6",
@@ -4824,7 +4908,6 @@
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       "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
       "integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
-      "dev": true,
       "requires": {
         "assert-plus": "1.0.0"
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@@ -4965,8 +5048,7 @@
     "har-schema": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-2.0.0.tgz",
-      "integrity": "sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI=",
-      "dev": true
+      "integrity": "sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI="
     },
     "har-validator": {
       "version": "5.0.3",
@@ -5175,7 +5257,6 @@
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         "assert-plus": "1.0.0",
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@@ -5350,6 +5431,14 @@
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       "dev": true
     },
+    "ignore-walk": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.1.tgz",
+      "integrity": "sha512-DTVlMx3IYPe0/JJcYP7Gxg7ttZZu3IInhuEhbchuqneY9wWe5Ojy2mXLBaQFUQmo0AW2r3qG7m1mg86js+gnlQ==",
+      "requires": {
+        "minimatch": "3.0.4"
+      }
+    },
     "import-local": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/import-local/-/import-local-1.0.0.tgz",
@@ -5776,8 +5865,7 @@
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-      "integrity": "sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=",
-      "dev": true
+      "integrity": "sha1-5HnICFjfDBsR3dppQPlgEfzaSpo="
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     "is-utf8": {
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@@ -5821,8 +5909,7 @@
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-      "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=",
-      "dev": true
+      "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
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@@ -6703,7 +6790,6 @@
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-      "dev": true,
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@@ -6757,14 +6843,12 @@
     "json-schema": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
-      "integrity": "sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM=",
-      "dev": true
+      "integrity": "sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM="
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     "json-schema-traverse": {
       "version": "0.3.1",
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-      "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
-      "dev": true
+      "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A="
     },
     "json-stable-stringify": {
       "version": "1.0.1",
@@ -6784,8 +6868,7 @@
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       "resolved": "https://registry.npmjs.org/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz",
-      "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus=",
-      "dev": true
+      "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus="
     },
     "json5": {
       "version": "0.5.1",
@@ -6812,7 +6895,6 @@
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
       "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
-      "dev": true,
       "requires": {
         "assert-plus": "1.0.0",
         "extsprintf": "1.3.0",
@@ -7408,14 +7490,12 @@
     "mime-db": {
       "version": "1.33.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.33.0.tgz",
-      "integrity": "sha512-BHJ/EKruNIqJf/QahvxwQZXKygOQ256myeN/Ew+THcAa5q+PjyTTMMeNQC4DZw5AwfvelsUrA6B67NKMqXDbzQ==",
-      "dev": true
+      "integrity": "sha512-BHJ/EKruNIqJf/QahvxwQZXKygOQ256myeN/Ew+THcAa5q+PjyTTMMeNQC4DZw5AwfvelsUrA6B67NKMqXDbzQ=="
     },
     "mime-types": {
       "version": "2.1.18",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.18.tgz",
       "integrity": "sha512-lc/aahn+t4/SWV/qcmumYjymLsWfN3ELhpmVuUFjgsORruuZPVSwAQryq+HHGvO/SI2KVX26bx+En+zhM8g8hQ==",
-      "dev": true,
       "requires": {
         "mime-db": "1.33.0"
       }
@@ -7448,7 +7528,6 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
       "requires": {
         "brace-expansion": "1.1.11"
       }
@@ -8029,8 +8108,7 @@
     "performance-now": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
-      "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=",
-      "dev": true
+      "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
     },
     "pify": {
       "version": "2.3.0",
@@ -8180,6 +8258,11 @@
       "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM=",
       "dev": true
     },
+    "psl": {
+      "version": "1.1.29",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.1.29.tgz",
+      "integrity": "sha512-AeUmQ0oLN02flVHXWh9sSJF7mcdFq0ppid/JkErufc3hGIV/AMa8Fo9VgDo/cT2jFdOWoFvHp90qqBH54W+gjQ=="
+    },
     "public-encrypt": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/public-encrypt/-/public-encrypt-4.0.2.tgz",
@@ -8196,8 +8279,7 @@
     "punycode": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
-      "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
-      "dev": true
+      "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4="
     },
     "qs": {
       "version": "6.5.1",
@@ -8877,8 +8959,7 @@
     "safe-buffer": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
-      "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg==",
-      "dev": true
+      "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg=="
     },
     "safe-regex": {
       "version": "1.1.0",
@@ -9530,7 +9611,6 @@
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.14.1.tgz",
       "integrity": "sha1-Ew9Zde3a2WPx1W+SuaxsUfqfg+s=",
-      "dev": true,
       "requires": {
         "asn1": "0.2.3",
         "assert-plus": "1.0.0",
@@ -9546,7 +9626,6 @@
           "version": "0.14.5",
           "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
           "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-          "dev": true,
           "optional": true
         }
       }
@@ -10246,7 +10325,6 @@
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
-      "dev": true,
       "requires": {
         "safe-buffer": "5.1.1"
       }
@@ -10496,6 +10574,11 @@
       "integrity": "sha1-FQWgOiiaSMvXpDTvuu7FBV9WM6k=",
       "dev": true
     },
+    "urlgrey": {
+      "version": "0.4.4",
+      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-0.4.4.tgz",
+      "integrity": "sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8="
+    },
     "use": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.0.tgz",
@@ -10549,7 +10632,6 @@
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "dev": true,
       "requires": {
         "assert-plus": "1.0.0",
         "core-util-is": "1.0.2",
diff --git a/web3.js/package.json b/web3.js/package.json
index 65bca4b0d1..e3c3621d50 100644
--- a/web3.js/package.json
+++ b/web3.js/package.json
@@ -31,13 +31,16 @@
     "test": "cross-env NODE_ENV=test jest",
     "test:watch": "cross-env NODE_ENV=test jest --watch",
     "test:cover": "cross-env NODE_ENV=test jest --coverage",
+    "codecov": "npm run test:cover && cat ./coverage/lcov.info | codecov",
     "coveralls": "npm run test:cover && cat ./coverage/lcov.info | coveralls",
     "flow": "flow",
     "flow-typed": "npm run clean && flow-typed install --overwrite || true",
     "lint": "eslint src examples",
     "prepublish": "npm run clean && npm run test && npm run flow && npm run lint && npm run doc && npm run build"
   },
-  "dependencies": {},
+  "dependencies": {
+    "codecov": "^3.0.4"
+  },
   "devDependencies": {
     "babel-core": "6.26.0",
     "babel-eslint": "8.2.3",