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R
R-B1
Level 1
May 29, 2026
Solved

Help with Adobe Analytics MCP / 500 Internal Server Error

  • May 29, 2026
  • 4 replies
  • 173 views

Hi everyone,

I’m currently trying to test the Adobe Analytics MCP.

So far, I have:

  • been granted the required permissions (MCP Access + Developer Access)
  • created a project in the Adobe Developer Console
  • generated API credentials/keys as part of the setup

After adding the MCP server in Cursor, I’m able to authenticate successfully. However, all requests fail afterward with a 500 Internal Server Error coming from the MCP endpoint.

Error message:

Transient error connecting to streamableHttp server:
Streamable HTTP error: Error POSTing to endpoint:
{
  "method":"POST",
  "error":"Proxy error",
  "message":"500 Internal Server Error",
  "targetUrl":"https://<adobe-mcp-endpoint>/mcp"
}

From the logs, it seems the OAuth/authentication flow succeeds, but the MCP endpoint itself fails afterward.

Has anyone run into this before, or does anyone know what could be the cause?

Any guidance would be hugely appreciated. thanks!

Best answer by Kshg7030

I believe the targetUrl should be what is mentioned in the documentation - https://developer.adobe.com/analytics-mcp/docs/aa/

I have already implemented MCP setup and data fetching via an oAuth service authentication using the Adobe developer Projects and that works for me along with being able to fetch data using different call tools. The endpoint should be https://mcp-gateway.adobe.io/aa/mcp. which is what I have used.

I have tried the similar setup via Postman as well as python scrips and it works for both. So I believe you should go through the documentation to make sure you have the correct endpoint.

 

4 replies

bjoern__koth
Community Advisor and Adobe Champion
bjoern__kothCommunity Advisor and Adobe Champion
Community Advisor and Adobe Champion
May 29, 2026

Are you sure you don't have to change the target url?

Should be https://aa-mcp.adobe.io/mcp

 

see documentation https://developer.adobe.com/analytics-mcp/docs/aa/

Cheers from Switzerland!
    R
    R-B1Author
    Level 1
    May 29, 2026

    The target URL in the forum post was redacted. Actual target URL was appservice-aamcpserver-prod.ethos11-prod-or1.ethos.adobe.net

    manpreetkaur27
    Adobe Support
    manpreetkaur27Adobe Support
    Adobe Support
    May 30, 2026


    It appears that the authentication flow is completing successfully, but the subsequent request from the MCP client to the Adobe Analytics MCP service is failing with a 500 Internal Server Error. In cases like this, the most likely causes are:

    • an endpoint/configuration mismatch (for example, an older or non-production MCP configuration), or
    • a temporary service-side issue after authentication is complete.

    Adobe’s Analytics release notes note that the MCP servers for Adobe Analytics are now available, and also call out that beta and production endpoints are different, so any older MCP configurations should be updated to the current production setup. MCP Access is required for all users in the Analytics product profile. Since your login flow succeeds and you’ve already confirmed the required permissions, the next best step is to verify the MCP configuration and refresh the connection state.


    You can try the following:

    • Verify that the MCP server configuration is using the current production Adobe Analytics MCP setup, not an older beta or test configuration.
    • Remove and re-add the MCP connection in Cursor.
    • Sign out of Adobe in the browser, then reconnect the MCP so a fresh authorization session is established.
    • Retry the request after reconnecting.

     

    manpreetkaur27
    Adobe Support
    manpreetkaur27Adobe Support
    Adobe Support
    June 3, 2026

    Hey ​@R-B1 I wanted to follow up and check whether you've had a chance to review our suggestions. If any of them helped address your concern, please consider marking the applicable suggestion as the Best Answer, as it may also help other community members facing a similar issue.

    K
    Kshg7030Accepted solution
    Level 2
    June 3, 2026

    I believe the targetUrl should be what is mentioned in the documentation - https://developer.adobe.com/analytics-mcp/docs/aa/

    I have already implemented MCP setup and data fetching via an oAuth service authentication using the Adobe developer Projects and that works for me along with being able to fetch data using different call tools. The endpoint should be https://mcp-gateway.adobe.io/aa/mcp. which is what I have used.

    I have tried the similar setup via Postman as well as python scrips and it works for both. So I believe you should go through the documentation to make sure you have the correct endpoint.

     

    manpreetkaur27
    Adobe Support
    manpreetkaur27Adobe Support
    Adobe Support
    June 8, 2026

    Thanks for sharing this ​@Kshg7030 

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