diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9b38fcf..43c4709 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -90,6 +90,27 @@ start compiling your repo.
 
 (build out this section based on questions asked of the team)
 
+### How do I add a new API endpoint?
+
+New endpoints starts in [openapi.yml](./service/src/main/resources/api/openapi.yml).
+
+Add and/or modify the desired endpoints in this document.
+For documentation on `openapi` document structure,
+[please start here](https://swagger.io/docs/specification/basic-structure/).
+
+> **NOTE: This is our public facing contract.**   
+> Changes to this must be considered carefully for version management.
+> See [API Versioning](./docs/api_versioning.md)
+
+From here, run the following command to validate and generate the necessary `service/`
+[interfaces](./service/build/swagger-code/src/main/java/bio/terra/appmanager/api),
+[models](./service/build/swagger-code/src/main/java/bio/terra/appmanager/model), and
+[`client/` code](./client/build/swagger-code/src/main/java/bio/terra/appmanager).
+
+```shell
+/scripts/build -t project
+```
+
 ## Additional questions
 
 The [Interactive Analysis Team](https://github.com/orgs/DataBiosphere/teams/broad-interactive-analysis)
diff --git a/README.md b/README.md
index bf96568..01d5ac2 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,12 @@ http://localhost:8080
 ./scripts/run docker
 ```
 
+## Service swagger endpoints
+
+Existing deployed versions of this service are:
+
+- https://appmanager.dsde-dev.broadinstitute.org
+
 ## Next steps
 
 Please read [CONTRIBUTING.md](./CONTRIBUTING.md) for more information about the process of
diff --git a/scripts/build b/scripts/build
index 9473eb2..8dccc82 100755
--- a/scripts/build
+++ b/scripts/build
@@ -25,7 +25,7 @@ skip_tests=""
 die() { log_error "$*" >&2; echo ""; usage; exit 2; }  # complain to STDERR and exit with error
 needs_arg() { if [ -z "$OPTARG" ]; then die "No arg for --$OPT option"; fi; }
 
-while getopts h-: OPT; do  # allow -h and -- "with arg"
+while getopts th-: OPT; do  # allow -h and -- "with arg"
   # support long options: https://stackoverflow.com/a/28466267/519360
   if [ "$OPT" = "-" ]; then   # long option: reformulate OPT and OPTARG
     OPT="${OPTARG%%=*}"       # extract long option name
@@ -44,6 +44,7 @@ shift $((OPTIND-1)) # remove parsed options and args from $@ list
 
 # process positional arguments (if any)
 BUILDTYPE=$1
+[ -z "${BUILDTYPE}" ] && die "Missing BUILDTYPE: '${BUILDTYPE}'"
 shift 1
 
 # use all trailing arguments as caveats to BUILD command
diff --git a/service/src/main/resources/api/openapi.yml b/service/src/main/resources/api/openapi.yml
index 04ca813..059e98b 100644
--- a/service/src/main/resources/api/openapi.yml
+++ b/service/src/main/resources/api/openapi.yml
@@ -37,6 +37,26 @@ paths:
           $ref: '#/components/responses/ServerError'
 
   # README /docs/api_versioning.md
+  #
+  /api/admin/v1/charts/versions:
+    post:
+      tags: [ admin ]
+      summary: Create new ChartVersion(s) to track
+      operationId: createChartVersions
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/ChartArray'
+      responses:
+        '204':
+          description: ChartVersion(s) have been successfully created
+        '403':
+          description: Request did not come from an admin
+        '500':
+          $ref: '#/components/responses/ServerError'
+
   /api/example/v1/message:
     get:
       summary: Gets your message
@@ -191,6 +211,26 @@ components:
         build:
           type: string
 
+    ChartVersion:
+      type: object
+      properties:
+        chartName:
+          type: string
+        chartVersion:
+          type: string
+        appVersion:
+          type: string
+        activeAt:
+          type: string
+          format: date-time
+        inactiveAt:
+          type: string
+          format: date-time
+    ChartArray:
+      type: array
+      items:
+        $ref: '#/components/schemas/ChartVersion'
+
   securitySchemes:
     bearerAuth:
       type: http