diff --git a/src/js/ripple/meta.js b/src/js/ripple/meta.js
index 66a81279..5ad3bd5b 100644
--- a/src/js/ripple/meta.js
+++ b/src/js/ripple/meta.js
@@ -209,4 +209,53 @@ Meta.prototype.getAffectedBooks = function() {
   return this._affectedBooks;
 };
 
+
+/**
+ * Execute a function on each affected node.
+ *
+ * The callback is passed two parameters. The first is a node object which looks
+ * like this:
+ *
+ *   {
+ *     // Type of diff, e.g. CreatedNode, ModifiedNode
+ *     nodeType: 'CreatedNode'
+ *
+ *     // Type of node affected, e.g. RippleState, AccountRoot
+ *     entryType: 'RippleState',
+ *
+ *     // Index of the ledger this change occurred in
+ *     ledgerIndex: '01AB01AB...',
+ *
+ *     // Contains all fields with later versions taking precedence
+ *     //
+ *     // This is a shorthand for doing things like checking which account
+ *     // this affected without having to check the nodeType.
+ *     fields: {...},
+ *
+ *     // Old fields (before the change)
+ *     fieldsPrev: {...},
+ *
+ *     // New fields (that have been added)
+ *     fieldsNew: {...},
+ *
+ *     // Changed fields
+ *     fieldsFinal: {...}
+ *   }
+ */
+
+[
+ 'forEach',
+ 'map',
+ 'filter',
+ 'every',
+ 'some',
+ 'reduce'
+].forEach(function(fn) {
+  Meta.prototype[fn] = function() {
+    return Array.prototype[fn].apply(this.nodes, arguments);
+  };
+});
+
+Meta.prototype.each = Meta.prototype.forEach;
+
 exports.Meta = Meta;
diff --git a/test/fixtures/payment-iou.json b/test/fixtures/payment-iou.json
new file mode 100644
index 00000000..6ed1c600
--- /dev/null
+++ b/test/fixtures/payment-iou.json
@@ -0,0 +1,123 @@
+{
+  "engine_result": "tesSUCCESS",
+  "engine_result_code": 0,
+  "engine_result_message": "The transaction was applied.",
+  "ledger_hash": "F3F1416BF2E813396AB01FAA38E9F1023AC4D2368D94B0D52B2BC603CEEC01C3",
+  "ledger_index": 10459371,
+  "status": "closed",
+  "type": "transaction",
+  "validated": true,
+  "metadata": {
+    "AffectedNodes": [
+      {
+        "ModifiedNode": {
+          "FinalFields": {
+            "Balance": {
+              "currency": "USD",
+              "issuer": "rrrrrrrrrrrrrrrrrrrrBZbvji",
+              "value": "1.525330905250352"
+            },
+            "Flags": 1114112,
+            "HighLimit": {
+              "currency": "USD",
+              "issuer": "rMwjYedjc7qqtKYVLiAccJSmCwih4LnE2q",
+              "value": "0"
+            },
+            "HighNode": "00000000000001E8",
+            "LowLimit": {
+              "currency": "USD",
+              "issuer": "rKmBGxocj9Abgy25J51Mk1iqFzW9aVF9Tc",
+              "value": "1000000000"
+            },
+            "LowNode": "0000000000000000"
+          },
+          "LedgerEntryType": "RippleState",
+          "LedgerIndex": "2F323020B4288ACD4066CC64C89DAD2E4D5DFC2D44571942A51C005BF79D6E25",
+          "PreviousFields": {
+            "Balance": {
+              "currency": "USD",
+              "issuer": "rrrrrrrrrrrrrrrrrrrrBZbvji",
+              "value": "1.535330905250352"
+            }
+          },
+          "PreviousTxnID": "DC061E6F47B1B6E9A496A31B1AF87194B4CB24B2EBF8A59F35E31E12509238BD",
+          "PreviousTxnLgrSeq": 10459364
+        }
+      },
+      {
+        "ModifiedNode": {
+          "FinalFields": {
+            "Balance": {
+              "currency": "USD",
+              "issuer": "rrrrrrrrrrrrrrrrrrrrBZbvji",
+              "value": "0.02"
+            },
+            "Flags": 1114112,
+            "HighLimit": {
+              "currency": "USD",
+              "issuer": "rMwjYedjc7qqtKYVLiAccJSmCwih4LnE2q",
+              "value": "0"
+            },
+            "HighNode": "00000000000001E8",
+            "LowLimit": {
+              "currency": "USD",
+              "issuer": "rLDYrujdKUfVx28T9vRDAbyJ7G2WVXKo4K",
+              "value": "1000000000"
+            },
+            "LowNode": "0000000000000000"
+          },
+          "LedgerEntryType": "RippleState",
+          "LedgerIndex": "AAE13AF5192EFBFD49A8EEE5869595563FEB73228C0B38FED9CC3D20EE74F399",
+          "PreviousFields": {
+            "Balance": {
+              "currency": "USD",
+              "issuer": "rrrrrrrrrrrrrrrrrrrrBZbvji",
+              "value": "0.01"
+            }
+          },
+          "PreviousTxnID": "DC061E6F47B1B6E9A496A31B1AF87194B4CB24B2EBF8A59F35E31E12509238BD",
+          "PreviousTxnLgrSeq": 10459364
+        }
+      },
+      {
+        "ModifiedNode": {
+          "FinalFields": {
+            "Account": "rKmBGxocj9Abgy25J51Mk1iqFzW9aVF9Tc",
+            "Balance": "239555992",
+            "Flags": 0,
+            "OwnerCount": 1,
+            "Sequence": 38
+          },
+          "LedgerEntryType": "AccountRoot",
+          "LedgerIndex": "E9A39B0BA8703D5FFD05D9EAD01EE6C0E7A15CF33C2C6B7269107BD2BD535818",
+          "PreviousFields": {
+            "Balance": "239567992",
+            "Sequence": 37
+          },
+          "PreviousTxnID": "DC061E6F47B1B6E9A496A31B1AF87194B4CB24B2EBF8A59F35E31E12509238BD",
+          "PreviousTxnLgrSeq": 10459364
+        }
+      }
+    ],
+    "TransactionIndex": 2,
+    "TransactionResult": "tesSUCCESS"
+  },
+  "tx_json": {
+    "Account": "rKmBGxocj9Abgy25J51Mk1iqFzW9aVF9Tc",
+    "Amount": {
+      "currency": "USD",
+      "issuer": "rMwjYedjc7qqtKYVLiAccJSmCwih4LnE2q",
+      "value": "0.01"
+    },
+    "Destination": "rLDYrujdKUfVx28T9vRDAbyJ7G2WVXKo4K",
+    "Fee": "12000",
+    "Flags": 2147483648,
+    "LastLedgerSequence": 10459379,
+    "Sequence": 37,
+    "SigningPubKey": "03F16A52EBDCA6EBF5D99828E1E6918C64D45E6F136476A8F4757512FE553D18F0",
+    "TransactionType": "Payment",
+    "TxnSignature": "3044022031D6AB55CDFD17E06DA0BAD6D6B7DC9B5CA8FFF50405F2FCD3ED8D3893B1835E02200524CC1E7D70AE3F00C9F94405C55EE179C363F534905168AE8B5BA01CF568A0",
+    "date": 471644150,
+    "hash": "34671C179737CC89E0F8BBAA83C313885ED1733488FC0F3088BAE16A3D9A5B1B"
+  }
+}
diff --git a/test/metadata-test.js b/test/metadata-test.js
new file mode 100644
index 00000000..a8c3c4fa
--- /dev/null
+++ b/test/metadata-test.js
@@ -0,0 +1,37 @@
+var assert = require('assert');
+var Meta = require('ripple-lib').Meta;
+
+describe('Meta', function() {
+  var meta = new Meta(require('./fixtures/payment-iou.json').metadata);
+
+  function callback(el, idx, ary) {
+    assert.strictEqual(meta.nodes[idx],el);
+  }
+
+  it('forEach', function() {
+    meta.forEach(callback);
+  });
+
+  it('map', function() {
+    meta.map(callback);
+  });
+
+  it('filter', function() {
+    meta.filter(callback);
+  });
+
+  it('every', function() {
+    meta.every(callback);
+  });
+
+  it('some', function() {
+    meta.some(callback);
+  });
+
+  it('reduce', function() {
+    meta.reduce(function(prev,curr,idx,ary) {
+      assert.strictEqual(meta.nodes[idx], curr);
+    }, []);
+  });
+
+});