diff --git a/integrations/jira/org/humbug/jira/HumbugListener.groovy b/integrations/jira/org/humbug/jira/HumbugListener.groovy
new file mode 100644
index 0000000..3dac87e
--- /dev/null
+++ b/integrations/jira/org/humbug/jira/HumbugListener.groovy
@@ -0,0 +1,151 @@
+/*
+* Copyright (c) 2013 Humbug, Inc
+*/
+
+package org.humbug.jira
+
+import static com.atlassian.jira.event.type.EventType.*
+
+import com.atlassian.jira.event.issue.AbstractIssueEventListener
+import com.atlassian.jira.event.issue.IssueEvent
+
+import java.util.logging.Level
+import java.util.logging.Logger
+
+import org.apache.commons.httpclient.HttpClient
+import org.apache.commons.httpclient.HttpStatus;
+import org.apache.commons.httpclient.methods.PostMethod
+import org.apache.commons.httpclient.NameValuePair
+
+class HumbugListener extends AbstractIssueEventListener {
+    Logger LOGGER = Logger.getLogger(HumbugListener.class.getName());
+
+    // Your humbug account's email address
+    String humbugEmail = ""
+    // Your humbug API key
+    String humbugAPIKey = ""
+
+    // What stream to send messages to. Must already exist.
+    String humbugStream = "jira"
+
+    // The base JIRA url for browsing
+    String issueBaseUrl = "https://jira.COMPANY.com/browse/"
+
+    // Your humbug domain, only change if you have a custom one
+    String domain = ""
+
+    @Override
+    void workflowEvent(IssueEvent event) {
+      processIssueEvent(event)
+    }
+
+    String processIssueEvent(IssueEvent event) {
+      String author = event.user.displayName
+      String issueId = event.issue.key
+      String issueUrl = issueBaseUrl + issueId
+      String issueUrlMd = String.format("[%s](%s)", issueId, issueBaseUrl + issueId)
+      String title = event.issue.summary
+      String subject = truncate(String.format("%s: %s", issueId, title), 60)
+      String assignee = "no one"
+      if (event.issue.assignee) {
+        assignee = event.issue.assignee.name
+      }
+      String comment = "";
+      if (event.comment) {
+        comment = event.comment.body
+      }
+
+      String content;
+
+      // Event types:
+      // https://docs.atlassian.com/jira/5.0/com/atlassian/jira/event/type/EventType.html
+      // Issue API:
+      // https://docs.atlassian.com/jira/5.0/com/atlassian/jira/issue/Issue.html
+      switch (event.getEventTypeId()) {
+        case ISSUE_COMMENTED_ID:
+          content = String.format("%s **updated** %s with comment:\n\n> %s",
+                                  author, issueUrlMd, comment)
+          break
+        case ISSUE_CREATED_ID:
+          content = String.format("%s **created** %s priority %s, assigned to **%s**: \n\n> %s",
+                                  author, issueUrlMd, event.issue.priorityObject.name,
+                                  assignee, title)
+          break
+        case ISSUE_ASSIGNED_ID:
+          content = String.format("%s **reassigned** %s to **%s**",
+                                  author, issueUrlMd, assignee)
+          break
+        case ISSUE_DELETED_ID:
+          content = String.format("%s **deleted** %s!",
+                                  author, issueUrlMd)
+          break
+        case ISSUE_RESOLVED_ID:
+          content = String.format("%s **resolved** %s as %s:\n\n> %s",
+                                  author, issueUrlMd, event.issue.resolutionObject.name,
+                                  comment)
+          break
+        case ISSUE_CLOSED_ID:
+          content = String.format("%s **closed** %s with resolution %s:\n\n> %s",
+                                  author, issueUrlMd, event.issue.resolutionObject.name,
+                                  comment)
+          break
+        case ISSUE_REOPENED_ID:
+          content = String.format("%s **reopened** %s:\n\n> %s",
+                                  author, issueUrlMd, comment)
+          break
+        default:
+          return
+      }
+
+      sendStreamMessage(humbugStream, subject, content)
+    }
+
+    String post(String method, NameValuePair[] parameters) {
+      PostMethod post = new PostMethod(humbugUrl(method))
+      post.setRequestHeader("Content-Type", post.FORM_URL_ENCODED_CONTENT_TYPE)
+      try {
+        post.setRequestBody(parameters)
+        HttpClient client = new HttpClient()
+        client.executeMethod(post)
+        String response = post.getResponseBodyAsString()
+        if (post.getStatusCode() != HttpStatus.SC_OK) {
+          String params = ""
+          for (NameValuePair pair: parameters) {
+              params += "\n" + pair.getName() + ":" + pair.getValue()
+          }
+          LOGGER.log(Level.SEVERE, "Error sending Humbug message:\n" + response + "\n\n" +
+                                   "We sent:" + params)
+        }
+        return response;
+      } catch (IOException e) {
+        throw new RuntimeException(e)
+      } finally {
+        post.releaseConnection()
+      }
+    }
+
+    String truncate(String string, int length) {
+      if (string.length() < length) {
+        return string
+      }
+      return string.substring(0, length - 3) + "..."
+    }
+
+    String sendStreamMessage(String stream, String subject, String message) {
+      NameValuePair[] body = [new NameValuePair("api-key", humbugAPIKey),
+                              new NameValuePair("email",   humbugEmail),
+                              new NameValuePair("type",    "stream"),
+                              new NameValuePair("to",      stream),
+                              new NameValuePair("subject", subject),
+                              new NameValuePair("content", message)]
+      return post("send_message", body);
+    }
+
+    String humbugUrl(method) {
+      String url = "humbughq.com"
+      if (domain != "") {
+        url = domain + "." + url
+      }
+      return "https://" + url + "/api/v1/" + method
+    }
+}