# MPC server link broken

**URL:** <https://community.opentargets.org/t/mpc-server-link-broken/1972>\
**Category:** mcp\
**Created:** [13 January 2026 08:42 UTC](https://community.opentargets.org/t/mpc-server-link-broken/1972 "2026-01-13T08:42:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![cinzia](https://dub1.discourse-cdn.com/flex017/user_avatar/community.opentargets.org/cinzia/32/743_2.png) [@cinzia](https://community.opentargets.org/u/cinzia)\
**Post date:** [13 January 2026 08:42 UTC](https://community.opentargets.org/t/mpc-server-link-broken/1972/1 "2026-01-13T08:42:55Z")

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Dear all,

In your latest blog post, " [Introducing the official Open Targets Platform Model Context Protocol](https://blog.opentargets.org/official-open-targets-mcp/) ” there is a link to the MPC server. Unfortunately, the server appears to be down at the moment.

When accessing the link, I receive the following error message:

> `Not Acceptable: Client must accept text/event-stream`

Could you please let us know if the service is temporarily unavailable or if there is an updated endpoint we should use?

Thank you very much.

Cinzia

Link: [https://mcp.platform.opentargets.org/mcp?ref=blog.opentargets.org](https://mcp.platform.opentargets.org/mcp?ref=blog.opentargets.org)

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**Author:** ![hcornu](https://dub1.discourse-cdn.com/flex017/user_avatar/community.opentargets.org/hcornu/32/716_2.png) [@hcornu](https://community.opentargets.org/u/hcornu)\
**Post date:** [13 January 2026 09:27 UTC](https://community.opentargets.org/t/mpc-server-link-broken/1972/2 "2026-01-13T09:27:32Z")

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Hi Cinzia! That is the link to the actual MCP; the descriptive text in the blog post is confusing and I will update it 🙂

You can read more about how to access the MCP here: [Model Context Protocol | Open Targets Platform Documentation](https://platform-docs.opentargets.org/data-access/model-context-protocol)

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**Author:** ![Daniel\_Rodrigues](https://dub1.discourse-cdn.com/flex017/user_avatar/community.opentargets.org/daniel_rodrigues/32/964_2.png) [@Daniel\_Rodrigues](https://community.opentargets.org/u/Daniel_Rodrigues)\
**Post date:** [16 June 2026 14:46 UTC](https://community.opentargets.org/t/mpc-server-link-broken/1972/3 "2026-06-16T14:46:39Z")

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hi we are also trying to connect using the MCP connector in claude, and this error appears:

 ![Screenshot 2026-06-16 at 16.45.23](https://europe1.discourse-cdn.com/flex017/uploads/opentargets/original/1X/86c105e6ffd6ea01387a8f22c06576cd8b3a1e39.png)

is it working frm your side?

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**Author:** ![hcornu](https://dub1.discourse-cdn.com/flex017/user_avatar/community.opentargets.org/hcornu/32/716_2.png) [@hcornu](https://community.opentargets.org/u/hcornu)\
**Post date:** [18 June 2026 15:06 UTC](https://community.opentargets.org/t/mpc-server-link-broken/1972/4 "2026-06-18T15:06:25Z")

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@Daniel_Rodrigues Are you still experiencing an issue? Another user reported this and we think it might be an intermittent problem.