diff --git a/index.js b/index.js
index 8ac6e135..7c6ec2e0 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,7 @@
 'use strict';
 
 const CircuitBreaker = require('./lib/circuit');
+const circuits = [];
 
 const defaults = {
   timeout: 10000, // 10 seconds
@@ -63,7 +64,10 @@ const defaults = {
  * @return {CircuitBreaker} a newly created {@link CircuitBreaker} instance
  */
 function factory (action, options) {
-  return new CircuitBreaker(action, Object.assign({}, defaults, options));
+  const circuit = new CircuitBreaker(action,
+    Object.assign({}, defaults, options));
+  circuits.push(circuit);
+  return circuit;
 }
 
 /**
@@ -80,6 +84,17 @@ function factory (action, options) {
  *     const breaker = circuitBreaker(readFilePromised);
  */
 factory.promisify = require('./lib/promisify');
+
+/**
+ * Get the Prometheus metrics for all circuits.
+ * @function factory.metrics
+ * @return {String} the metrics for all circuits
+ */
+factory.metrics = function metrics() {
+  const lastCircuit = circuits[circuits.length - 1];
+  if (lastCircuit.metrics) return lastCircuit.metrics.metrics;
+}
+
 let warningIssued = false;
 Object.defineProperty(factory, 'stats', {
   get: _ => {
diff --git a/test/prometheus-test.js b/test/prometheus-test.js
index 93f57ce1..cabd97c8 100644
--- a/test/prometheus-test.js
+++ b/test/prometheus-test.js
@@ -20,6 +20,17 @@ test('Does not load Prometheus when the option is not provided', t => {
   t.end();
 });
 
+test('The factory function provides access to metrics for all circuits', t => {
+  t.plan(4);
+  const c1 = cb(passFail, { usePrometheus: true, name: 'fred' });
+  const c2 = cb(passFail, { usePrometheus: true, name: 'bob' });
+  t.equal(c1.name, 'fred');
+  t.equal(c2.name, 'bob');
+  t.ok(/circuit_fred_/.test(cb.metrics()));
+  t.ok(/circuit_bob_/.test(cb.metrics()));
+  t.end();
+});
+
 
 // All of the additional tests only make sense when running in a Node.js context
 if (!process.env.WEB) {