diff --git a/.github/workflows/buf.yml b/.github/workflows/buf.yml
new file mode 100644
index 000000000..0de1aed6c
--- /dev/null
+++ b/.github/workflows/buf.yml
@@ -0,0 +1,20 @@
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  steps:
+    - uses: actions/checkout@v2
+    - uses: bufbuild/buf-setup-action@v0.6.0
+    - uses: bufbuild/buf-lint-action@v1
+      with:
+        input: 'prompb'
+    - uses: bufbuild/buf-breaking-action@v1
+      with:
+        input: 'prompb'
+        against: 'https://github.com/prometheus/prometheus.git#branch=main,ref=HEAD~1,subdir=prompb'
+    - uses: bufbuild/buf-push-action@v1
+      with:
+        input: 'prompb'
+        buf_token: ${{ secrets.BUF_TOKEN }}
diff --git a/prompb/buf.lock b/prompb/buf.lock
new file mode 100644
index 000000000..30b0f0847
--- /dev/null
+++ b/prompb/buf.lock
@@ -0,0 +1,10 @@
+# Generated by buf. DO NOT EDIT.
+version: v1
+deps:
+  - remote: buf.build
+    owner: gogo
+    repository: protobuf
+    branch: main
+    commit: 4df00b267f944190a229ce3695781e99
+    digest: b1-sjLgsg7CzrkOrIjBDh3s-l0aMjE6oqTj85-OsoopKAw=
+    create_time: 2021-08-10T00:14:28.345069Z
diff --git a/prompb/buf.yaml b/prompb/buf.yaml
new file mode 100644
index 000000000..694880a26
--- /dev/null
+++ b/prompb/buf.yaml
@@ -0,0 +1,4 @@
+version: v1
+name: buf.build/prometheus/prometheus
+deps:
+  - buf.build/gogo/protobuf