diff --git a/plugins/grpc/swift-protobuf/v2.1.2/.dockerignore b/plugins/grpc/swift-protobuf/v2.1.2/.dockerignore
new file mode 100644
index 000000000..2b3157b59
--- /dev/null
+++ b/plugins/grpc/swift-protobuf/v2.1.2/.dockerignore
@@ -0,0 +1,3 @@
+*
+!Dockerfile
+!Package.resolved
diff --git a/plugins/grpc/swift-protobuf/v2.1.2/Dockerfile b/plugins/grpc/swift-protobuf/v2.1.2/Dockerfile
new file mode 100644
index 000000000..c707f86d3
--- /dev/null
+++ b/plugins/grpc/swift-protobuf/v2.1.2/Dockerfile
@@ -0,0 +1,18 @@
+# syntax=docker/dockerfile:1.19
+FROM swift:6.2.3-bookworm AS build
+
+RUN apt-get update \
+ && apt-get install -y unzip
+WORKDIR /app
+RUN git clone --depth 1 --branch 2.1.2 https://github.com/grpc/grpc-swift-protobuf --recursive
+WORKDIR /app/grpc-swift-protobuf
+COPY --link Package.resolved .
+RUN swift build -c release --static-swift-stdlib --product protoc-gen-grpc-swift-2 -Xlinker -s --force-resolved-versions
+
+FROM gcr.io/distroless/cc-debian12:latest@sha256:0c8eac8ea42a167255d03c3ba6dfad2989c15427ed93d16c53ef9706ea4691df AS base
+
+FROM scratch
+COPY --link --from=base / /
+COPY --link --from=build /app/grpc-swift-protobuf/.build/release/protoc-gen-grpc-swift-2 .
+USER nobody
+ENTRYPOINT [ "/protoc-gen-grpc-swift-2" ]
diff --git a/plugins/grpc/swift-protobuf/v2.1.2/Package.resolved b/plugins/grpc/swift-protobuf/v2.1.2/Package.resolved
new file mode 100644
index 000000000..b5c98877f
--- /dev/null
+++ b/plugins/grpc/swift-protobuf/v2.1.2/Package.resolved
@@ -0,0 +1,33 @@
+{
+  "originHash" : "405f1b136bba244f838487f7511cabeb00efe492de4f30605c56321b8bb98bff",
+  "pins" : [
+    {
+      "identity" : "grpc-swift-2",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/grpc/grpc-swift-2.git",
+      "state" : {
+        "revision" : "531924b28fde0cf7585123c781c6f55cc35ef7fc",
+        "version" : "2.2.1"
+      }
+    },
+    {
+      "identity" : "swift-collections",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-collections.git",
+      "state" : {
+        "revision" : "7b847a3b7008b2dc2f47ca3110d8c782fb2e5c7e",
+        "version" : "1.3.0"
+      }
+    },
+    {
+      "identity" : "swift-protobuf",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-protobuf.git",
+      "state" : {
+        "revision" : "c169a5744230951031770e27e475ff6eefe51f9d",
+        "version" : "1.33.3"
+      }
+    }
+  ],
+  "version" : 3
+}
diff --git a/plugins/grpc/swift-protobuf/v2.1.2/buf.plugin.yaml b/plugins/grpc/swift-protobuf/v2.1.2/buf.plugin.yaml
new file mode 100644
index 000000000..fa6ac88ea
--- /dev/null
+++ b/plugins/grpc/swift-protobuf/v2.1.2/buf.plugin.yaml
@@ -0,0 +1,31 @@
+version: v1
+name: buf.build/grpc/swift-protobuf
+plugin_version: v2.1.2
+source_url: https://github.com/grpc/grpc-swift-protobuf
+integration_guide_url: https://swiftpackageindex.com/grpc/grpc-swift-protobuf/2.1.2/documentation/grpcprotobuf
+description: Generates Swift client and server stubs for the gRPC framework.
+deps:
+  - plugin: buf.build/apple/swift:v1.33.3
+output_languages:
+  - swift
+registry:
+  swift:
+    deps:
+      - source: https://github.com/grpc/grpc-swift-protobuf.git
+        package: grpc-swift-protobuf
+        # https://github.com/grpc/grpc-swift-protobuf/blob/2.1.2/Package.swift#L22
+        products: [ GRPCProtobuf ]
+        version: 2.1.2
+        # https://github.com/grpc/grpc-swift-protobuf/blob/2.1.2/Package.swift#L65
+        swift_versions: [ ".v6" ]
+        # https://github.com/grpc/grpc-swift-protobuf/blob/2.1.2/Package.swift#L58
+        platforms:
+          macos: v15
+          ios: v18
+          tvos: v18
+          watchos: v11
+  opts:
+    - Visibility=Public
+    - FileNaming=PathToUnderscores
+spdx_license_id: Apache-2.0
+license_url: https://github.com/grpc/grpc-swift-protobuf/blob/2.1.2/LICENSE
diff --git a/tests/testdata/buf.build/grpc/swift-protobuf/v2.1.2/eliza/plugin.sum b/tests/testdata/buf.build/grpc/swift-protobuf/v2.1.2/eliza/plugin.sum
new file mode 100644
index 000000000..104561e7d
--- /dev/null
+++ b/tests/testdata/buf.build/grpc/swift-protobuf/v2.1.2/eliza/plugin.sum
@@ -0,0 +1 @@
+h1:t5ycbVWI4y9Z5KuSJqQ4bQPdpHrWwVbMjESFbawChEE=
diff --git a/tests/testdata/buf.build/grpc/swift-protobuf/v2.1.2/petapis/plugin.sum b/tests/testdata/buf.build/grpc/swift-protobuf/v2.1.2/petapis/plugin.sum
new file mode 100644
index 000000000..80263ca73
--- /dev/null
+++ b/tests/testdata/buf.build/grpc/swift-protobuf/v2.1.2/petapis/plugin.sum
@@ -0,0 +1 @@
+h1:icvJdhaYuOrR7ZCJZXU4y9CqvP1LJnJ+T7nvYk7SFuo=