`register_agent` action fails with `no method found`

[paulrinaldi]

Steps to follow:
0. Create an agentspace app

1. Create an agent with google adk and deploy to agent engine
2. Clone this repo, use uv to install dependencies
3. Edit the config.json to have the following known values defined:

{
    "project_id": "...",
    "location": "...", 
    "re_resource_name": "...",
    "re_resource_id": "...",
    "re_display_name": "...",
    "app_id": "...",
    "adk_deployment_id": "...",
    "icon_uri": "...",
    "api_location": "...",
    "re_location": "..."
}

5. Run uv run python as_registry_client.py
6. Enter the display name, description, tool descriptions, and no auth id.

Observe:
info log:

INFO:root:Create Agent Command: ['curl', '-X', 'POST', '-H', 'Authorization: Bearer ...', 'https://discoveryengine.googleapis.com/v1alpha/projects/<MY_PROJECT_ID_NOT_NUMBER>/locations/global/collections/default_collection/engines/<MY_AGENTSPACE_APP_ID>/assistants/default_assistant/agents', '-d', '{"displayName": "<NAME_I_ENTERED", "description": "<BRIEF_DESCRIPTION_I_ENTERED>", "adk_agent_definition": {"tool_settings": {"tool_description": "<BRIEF_TOOL_DESCRIPTION_I_ENTERED>"}, "provisioned_reasoning_engine": {"reasoning_engine": "projects/<MY_PROJECT_ID_NOT_NUMBER>/locations/global/reasoningEngines/<MY_AGENTSPACE_APP_ID>"}, "authorizations": []}, "icon": {"uri": "https://.....com/....png"}}']

and response

{
  "status_code": 0,
  "stdout": "{\n  \"error\": {\n    \"code\": 404,\n    \"message\": \"Method not found.\",\n    \"status\": \"NOT_FOUND\"\n  }\n}\n",
  "stderr": "  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current\n                                 Dload  Upload   Total   Spent    Left  Speed\n\n  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0\n100   516    0   100  100   416    856   3562 --:--:-- --:--:-- --:--:--  4448\n",
  "agent": {
    "error": {
      "code": 404,
      "message": "Method not found.",
      "status": "NOT_FOUND"
    }
  }
}

Expectations:

• Observe successful 402 or 200

Do I need to add more to my config? Is the project_id supposed to be the project_number? Or is this failing for others as well?

[paulrinaldi]

I created an oauth credential and added the id to the keys sent but that did not help. I also tried the --project_id and --app_id flags.

[zrottier]

same issue here

[paulrinaldi]

We figured out today that likely it is due to an allow list and google will resolve this issue soon

[MEPO29]

same issue here

[eric-berlin]

@paulrinaldi thanks for the update !

Do you have an update on this ? If not do you have any idea of how to be in the allow list ? :)

[paulrinaldi]

I recommend contacting Google Cloud support via ticket if when you try again it fails.

…

On Thu, Sep 25, 2025, 03:53 Berlin Eric ***@***.***> wrote: *eric-berlin* left a comment (VeerMuchandi/agent_registration_tool#2) <#2 (comment)> @paulrinaldi <https://github.com/paulrinaldi> thanks for the update ! Do you have an update on this ? If not do you have any idea of how to be in the allow list ? :) — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AZRKEZIUF542EMCKS2KUEQD3UOURRAVCNFSM6AAAAACFYH5LXCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTGMZSHE2DQMRVGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[mashsyed]

facing same issue

[mertbozkir]

yes guys, it's all about allowlist.

---

Create a support ticket and they will get back to you in prob. 3-5 days!