diff --git a/accounting/__init__.py b/accounting/__init__.py
index e69de29..29fb546 100644
--- a/accounting/__init__.py
+++ b/accounting/__init__.py
@@ -0,0 +1,4 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
diff --git a/accounting/client.py b/accounting/client.py
index 361a00a..9c60c8e 100644
--- a/accounting/client.py
+++ b/accounting/client.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import sys
 import argparse
 import json
diff --git a/accounting/config.py b/accounting/config.py
index 6f4243d..ada2c70 100644
--- a/accounting/config.py
+++ b/accounting/config.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import os
 
 LEDGER_FILE = os.environ.get('LEDGER_FILE', None)
diff --git a/accounting/decorators.py b/accounting/decorators.py
index 6e5c1de..c7f1595 100644
--- a/accounting/decorators.py
+++ b/accounting/decorators.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 from functools import wraps
 
 from flask import jsonify
diff --git a/accounting/exceptions.py b/accounting/exceptions.py
index 694c6a6..a2e841e 100644
--- a/accounting/exceptions.py
+++ b/accounting/exceptions.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 class AccountingException(Exception):
     '''
     Used as a base for exceptions that are returned to the caller via the
diff --git a/accounting/gtkclient.py b/accounting/gtkclient.py
index aa6ca96..be85226 100644
--- a/accounting/gtkclient.py
+++ b/accounting/gtkclient.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import sys
 import logging
 import threading
diff --git a/accounting/models.py b/accounting/models.py
index c09dc57..3b48e37 100644
--- a/accounting/models.py
+++ b/accounting/models.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import uuid
 from decimal import Decimal
 
diff --git a/accounting/storage/__init__.py b/accounting/storage/__init__.py
index 4985a07..28922c8 100644
--- a/accounting/storage/__init__.py
+++ b/accounting/storage/__init__.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 from abc import ABCMeta, abstractmethod
 
 
diff --git a/accounting/storage/ledgercli.py b/accounting/storage/ledgercli.py
index b6e5e49..bb7f3fa 100644
--- a/accounting/storage/ledgercli.py
+++ b/accounting/storage/ledgercli.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import sys
 import subprocess
 import logging
diff --git a/accounting/storage/sql/__init__.py b/accounting/storage/sql/__init__.py
index c213f81..9938bc9 100644
--- a/accounting/storage/sql/__init__.py
+++ b/accounting/storage/sql/__init__.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import logging
 import json
 
diff --git a/accounting/storage/sql/models.py b/accounting/storage/sql/models.py
index 72dfab9..dbeae95 100644
--- a/accounting/storage/sql/models.py
+++ b/accounting/storage/sql/models.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 import json
 
 from . import db
diff --git a/accounting/transport.py b/accounting/transport.py
index d397084..2e4a494 100644
--- a/accounting/transport.py
+++ b/accounting/transport.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 from datetime import datetime
 
 from flask import json
diff --git a/accounting/web.py b/accounting/web.py
index f8dc775..60564e0 100644
--- a/accounting/web.py
+++ b/accounting/web.py
@@ -1,3 +1,7 @@
+# Part of accounting-api project:
+# https://gitorious.org/conservancy/accounting-api
+# License: AGPLv3-or-later
+
 '''
 This module contains the high-level webservice logic such as the Flask setup
 and the Flask endpoints.