diff --git a/api/controllers/blocks.js b/api/controllers/blocks.js
index e51266f3..12fa9972 100644
--- a/api/controllers/blocks.js
+++ b/api/controllers/blocks.js
@@ -20,6 +20,10 @@ Blocks.setNode = function(aNode) {
 /*
  *  params
  */
+
+/*
+ * Finds a block by its hash
+ */
 Blocks.blockHashParam = function(req, res, next, blockHash) {
   // TODO: fetch block from service
   var block = mockBlocks[blockHash];
@@ -32,6 +36,9 @@ Blocks.blockHashParam = function(req, res, next, blockHash) {
   next();
 };
 
+/*
+ * Finds a block by its height
+ */
 Blocks.heightParam = function(req, res, next, height) {
   // TODO: fetch block from service
   height = parseInt(height);
@@ -45,6 +52,7 @@ Blocks.heightParam = function(req, res, next, height) {
   next();
 };
 
+
 /*
  * controllers
  */
diff --git a/api/controllers/transactions.js b/api/controllers/transactions.js
new file mode 100644
index 00000000..d65b87ae
--- /dev/null
+++ b/api/controllers/transactions.js
@@ -0,0 +1,51 @@
+'use strict';
+
+var bitcore = require('bitcore');
+var _ = bitcore.deps._;
+var $ = bitcore.util.preconditions;
+var Transaction = bitcore.Transaction;
+
+var mockTransactions = require('../test/data/transactions');
+
+var Transactions = {};
+
+var node;
+Transactions.setNode = function(aNode) {
+  node = aNode;
+};
+
+
+/*
+ *  params
+ */
+
+/*
+ * Finds a transaction by its hash
+ */
+Transactions.txHashParam = function(req, res, next, txHash) {
+  // TODO: fetch tx from service
+  var tx = mockTransactions[txHash];
+
+  if (_.isUndefined(tx)) {
+    res.status(404).send('Transaction with id ' + txHash + ' not found');
+    return;
+  }
+  req.tx = tx;
+  next();
+};
+
+
+/*
+ * controllers
+ */
+
+Transactions.get = function(req, res) {
+  $.checkState(req.tx instanceof Transaction);
+  res.send(req.tx.toObject());
+};
+Transactions.getTxError = function(req, res) {
+  res.status(422);
+  res.send('/v1/transactions/ parameter must be a 64 digit hex');
+};
+
+module.exports = Transactions;
diff --git a/api/routes/v1.js b/api/routes/v1.js
index 7fabad25..79aa649f 100644
--- a/api/routes/v1.js
+++ b/api/routes/v1.js
@@ -1,14 +1,15 @@
 'use strict';
 
 var express = require('express');
-var Blocks = require('../controllers/blocks');
 var NodeStatus = require('../controllers/node');
+var Blocks = require('../controllers/blocks');
+var Transactions = require('../controllers/transactions');
 
 
 function initRouter(node) {
   var router = express.Router();
 
-  [NodeStatus, Blocks].forEach(function(controller) {
+  [NodeStatus, Blocks, Transactions].forEach(function(controller) {
     controller.setNode(node);
   });
 
@@ -21,6 +22,7 @@ function initRouter(node) {
   // parameter middleware
   router.param('blockHash', Blocks.blockHashParam);
   router.param('height', Blocks.heightParam);
+  router.param('txHash', Transactions.txHashParam);
 
   // Node routes
   router.get('/node', NodeStatus.getStatus);
@@ -30,15 +32,13 @@ function initRouter(node) {
   router.get('/blocks/latest', Blocks.getLatest);
   router.get('/blocks/:blockHash([A-Fa-f0-9]{64})', Blocks.get);
   router.get('/blocks/:height([0-9]+)', Blocks.get);
-  router.get('/blocks/*', Blocks.getBlockError);
-  router.get('/blocks/:blockHash/transactions/:txIndex', mockResponse);
 
   // Transaction routes
   router.get('/transactions', mockResponse);
-  router.get('/transactions/:txHash', mockResponse);
-  router.get('/transactions/:txHash/addresses', mockResponse);
-  router.get('/transactions/:txHash/outputs/addresses', mockResponse);
-  router.get('/transactions/:txHash/inputs/addresses', mockResponse);
+  router.get('/transactions/:txHash([A-Fa-f0-9]{64})', Transactions.get);
+  router.get('/transactions/:txHash([A-Fa-f0-9]{64})/addresses', mockResponse);
+  router.get('/transactions/:txHash([A-Fa-f0-9]{64})/outputs/addresses', mockResponse);
+  router.get('/transactions/:txHash([A-Fa-f0-9]{64})/inputs/addresses', mockResponse);
   router.post('/transactions/send', mockResponse);
 
   // Input routes
@@ -56,6 +56,10 @@ function initRouter(node) {
   // TODO: check if this is really restful
   router.get('/addresses/:addresses/utxos', mockResponse);
 
+  // error routes
+  router.get('/blocks/*', Blocks.getBlockError);
+  router.get('/transactions/*', Transactions.getTxError);
+
   return router;
 }
 
diff --git a/api/test/data/transactions.js b/api/test/data/transactions.js
new file mode 100644
index 00000000..4317a081
--- /dev/null
+++ b/api/test/data/transactions.js
@@ -0,0 +1,17 @@
+'use strict';
+
+var bitcore = require('bitcore');
+var Block = bitcore.Block;
+
+var mockTransactions = {};
+var blockHexs = require('./blocks.json');
+blockHexs.map(function(hex) {
+  var block = new Block(new Buffer(hex, 'hex'));
+  return block;
+}).forEach(function(block) {
+  block.transactions.forEach(function(tx) {
+    mockTransactions[tx.id] = tx;
+  });
+});
+
+module.exports = mockTransactions;
diff --git a/api/test/v1/blocks.js b/api/test/v1/blocks.js
index 0aeab00c..7aa69cba 100644
--- a/api/test/v1/blocks.js
+++ b/api/test/v1/blocks.js
@@ -48,10 +48,13 @@ describe('BitcoreHTTP v1 blocks routes', function() {
         .expect(404)
         .expect('Block with id 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b600000000 not found', cb);
     });
-    it('works with valid blockHash', function(cb) {
-      agent.get('/v1/blocks/' + b1.hash)
-        .expect(200)
-        .expect(b1.toJSON(), cb);
+    Object.keys(mockBlocks).forEach(function(hash) {
+      var block = mockBlocks[hash];
+      it('works with valid blockHash ...' + hash.substring(hash.length - 8), function(cb) {
+        agent.get('/v1/blocks/' + hash)
+          .expect(200)
+          .expect(block.toJSON(), cb);
+      });
     });
   });
   describe('/blocks/:height', function() {
diff --git a/api/test/v1/transactions.js b/api/test/v1/transactions.js
new file mode 100644
index 00000000..e3c9dbf1
--- /dev/null
+++ b/api/test/v1/transactions.js
@@ -0,0 +1,51 @@
+'use strict';
+
+var chai = require('chai');
+var should = chai.should();
+var request = require('supertest');
+
+var EventEmitter = require('eventemitter2').EventEmitter2;
+
+var BitcoreHTTP = require('../../lib/http');
+var mockTransactions = require('../data/transactions');
+
+describe('BitcoreHTTP v1 transactions routes', function() {
+
+  // mocks
+  var nodeMock, app, agent;
+  beforeEach(function() {
+    nodeMock = new EventEmitter();
+    app = new BitcoreHTTP(nodeMock).app;
+    agent = request(app);
+  });
+
+  describe('/transactions', function() {
+    it('works with default parameters', function(cb) {
+      agent.get('/v1/transactions/')
+        .expect(200)
+        .expect({
+          'message': 'This is a mocked response'
+        }, cb);
+    });
+  });
+  describe('/transactions/:txHash', function() {
+    it('fails with invalid txHash', function(cb) {
+      agent.get('/v1/transactions/abad1dea')
+        .expect(422)
+        .expect('/v1/transactions/ parameter must be a 64 digit hex', cb);
+    });
+    it('returns 404 with non existent transaction', function(cb) {
+      agent.get('/v1/transactions/000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b600000000')
+        .expect(404)
+        .expect('Transaction with id 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b600000000 not found', cb);
+    });
+    Object.keys(mockTransactions).forEach(function(hash) {
+      it('works with valid txHash ...' + hash.substring(hash.length - 8), function(cb) {
+        agent.get('/v1/transactions/' + hash)
+          .expect(200)
+          .expect(mockTransactions[hash].toJSON(), cb);
+      });
+    });
+  });
+
+});