diff --git a/modules/jsoncons/0.177.0/MODULE.bazel b/modules/jsoncons/0.177.0/MODULE.bazel
new file mode 100644
index 00000000000..07281743cc2
--- /dev/null
+++ b/modules/jsoncons/0.177.0/MODULE.bazel
@@ -0,0 +1,7 @@
+module(
+    name = "jsoncons",
+    version = "0.177.0",
+    compatibility_level = 1,
+)
+
+bazel_dep(name = "rules_foreign_cc", version = "0.12.0")
diff --git a/modules/jsoncons/0.177.0/patches/add_build_file.patch b/modules/jsoncons/0.177.0/patches/add_build_file.patch
new file mode 100644
index 00000000000..e34bd60f2e4
--- /dev/null
+++ b/modules/jsoncons/0.177.0/patches/add_build_file.patch
@@ -0,0 +1,22 @@
+--- /dev/null
++++ BUILD.bazel
+@@ -0,0 +1,19 @@
++package(default_visibility = ["//visibility:public"])
++
++cc_library(
++    name = "json",
++    hdrs = glob(["include/**/*.hpp"])
++)
++
++cmake(
++    name = "json_cmake",
++    out_binaries = ["unit_tests"]
++)
++
++sh_test(
++  name = "unit_tests_as_sh"
++  src = "test.sh"
++  data = [
++     "//:unit_tests"
++  ],
++)
diff --git a/modules/jsoncons/0.177.0/patches/module_dot_bazel.patch b/modules/jsoncons/0.177.0/patches/module_dot_bazel.patch
new file mode 100644
index 00000000000..a84c5c16dbf
--- /dev/null
+++ b/modules/jsoncons/0.177.0/patches/module_dot_bazel.patch
@@ -0,0 +1,10 @@
+--- MODULE.bazel
++++ MODULE.bazel
+@@ -0,0 +1,7 @@
++module(
++    name = "jsoncons",
++    version = "0.177.0",
++    compatibility_level = 1,
++)
++
++bazel_dep(name = "rules_foreign_cc", version = "0.12.0")
diff --git a/modules/jsoncons/0.177.0/patches/test_dot_sh.patch b/modules/jsoncons/0.177.0/patches/test_dot_sh.patch
new file mode 100644
index 00000000000..b1a3dbf40ac
--- /dev/null
+++ b/modules/jsoncons/0.177.0/patches/test_dot_sh.patch
@@ -0,0 +1,6 @@
+--- /dev/null
++++ test.sh
+@@ -0,0 +1,3 @@
++#!/usr/bin/env bash
++
++./unit_tests
diff --git a/modules/jsoncons/0.177.0/presubmit.yml b/modules/jsoncons/0.177.0/presubmit.yml
new file mode 100644
index 00000000000..407a7ee3282
--- /dev/null
+++ b/modules/jsoncons/0.177.0/presubmit.yml
@@ -0,0 +1,16 @@
+matrix:
+  platform:
+    - debian12
+    - ubuntu2204
+    - macos
+    - macos_arm64
+    - windows
+
+tasks:
+  run_tests:
+    name: Run tests
+    version:
+    platform: ${{ platform }}
+    bazel: 7.x
+    build_targets:
+      - '@jsoncons//:unit_tests'
diff --git a/modules/jsoncons/0.177.0/source.json b/modules/jsoncons/0.177.0/source.json
new file mode 100644
index 00000000000..b891d56da9f
--- /dev/null
+++ b/modules/jsoncons/0.177.0/source.json
@@ -0,0 +1,11 @@
+{
+    "url": "https://github.com/danielaparker/jsoncons/archive/refs/tags/v0.177.0.zip",
+    "integrity": "sha256-zp8O4dvNxnczz55QsDj4HTYSG4APjRKj2J6lIyRX7dY=",
+    "strip_prefix": "jsoncons-0.177.0",
+    "patches": {
+        "add_build_file.patch": "sha256-YBWr5cjfLlKXvzgDKL8m2JD02s1OBGa/OReLKIDL0xc=",
+        "module_dot_bazel.patch": "sha256-7N+QhtRM69GuJtVqGLqkLZXLQYedIuaUXUlY1MdsxnM=",
+        "test_dot_sh.patch": "sha256-GoFJ7IcWoprnDCKUuDcPHrP4OPYfA1jDfPeausQEnl0="
+    },
+    "patch_strip": 0
+}
diff --git a/modules/jsoncons/metadata.json b/modules/jsoncons/metadata.json
new file mode 100644
index 00000000000..84dedb46f3a
--- /dev/null
+++ b/modules/jsoncons/metadata.json
@@ -0,0 +1,16 @@
+{
+    "homepage": "https://github.com/danielaparker/jsoncons",
+    "maintainers": [
+        {
+            "email": "bcr-maintainers@bazel.build",
+            "name": "No Maintainer Specified"
+        }
+    ],
+    "repository": [
+        "github:danielaparker/jsoncons"
+    ],
+    "versions": [
+        "0.177.0"
+    ],
+    "yanked_versions": {}
+}