hermes

Connect Hermes to Langfuse

Run Hermes as a hosted agent in NoClick with Langfuse wired into its tools handle. It can use Langfuse directly while it works. No glue code, nothing to install. Click below to open a ready-to-run agent and connect your account.
Loading preview…
Opens a workflow with 19 tools ready to use.

Set up in minutes

The open button drops you into a guided setup. It asks exactly this, nothing else:
  1. Choose where it runs

    On your computer through your own Hermes, or hosted in the cloud. The rest of setup adapts to your choice:

  2. Pick what it can do in Langfuse

    A preset of real Langfuse operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.

  3. Connect Langfuse

    One sign-in. The agent acts through your account, scoped to the operations you picked.

  4. Add your personal MCP link

    The last step mints a private MCP URL for this agent and walks you through exactly this, with your real link filled in. The page flips to Connected the moment your Hermes first calls in. Hermes connects when it next starts a session.

    1. Run this in your terminal

    $hermes mcp add noclick --url https://mcp.noclick.app/s/<your-link>

    2. Answer no when asked if the server requires authentication — the link itself is the key

    <your-link> is your personal server URL — setup mints it for you.

Tools Hermes gets

Pick the operations you want and each becomes a tool the agent can call directly while it works.

Langfuse

19 tools
List Projects

Read the project associated with this project API key.

List Prompts

List prompt metadata, versions and labels.

Get Prompt

Get a prompt, optionally selecting its version or label.

Create Text Prompt

Create a text prompt or a new version of an existing prompt.

Update Prompt Labels

Replace a prompt version's deployment labels; labels move between versions.

List Datasets

List evaluation datasets.

Get Dataset

Get dataset metadata by name.

Create Dataset

Create an evaluation dataset.

List Dataset Items

List dataset items, optionally filtering by dataset and source trace.

Get Dataset Item

Get one dataset item.

Upsert Dataset Item

Create an item or update the supplied project-unique item ID.

Delete Dataset Item

Irreversibly delete a dataset item and all its run items.

List Observations

Read observation rows using the current v2 cursor API.

List Scores

Read evaluation scores using the current v3 cursor API.

Create Score

Submit one numeric trace score for asynchronous processing.

Delete Score

Delete a score by its Langfuse ID.

List Comments

List comments in the project.

Get Comment

Get a comment by ID.

Create Comment

Attach a comment to a trace, observation, session or prompt.

About Hermes

Hermes is an open agent built on Nous Research’s Hermes models. NoClick runs it hosted and connects your apps to it as tools, so it can do real work across your systems. Wire an integration into the agent and Hermes can use that app’s operations directly while it reasons through a task. It is a strong pick when you want an open-model agent with genuine tool access.
Built on open Hermes models
Capable general reasoning
Flexible, open-model foundation
Hosted with apps wired in as tools

Frequently asked questions

More ways to connect

Open your Hermes agent in one click.

NoClick runs Hermes for you with Langfuse wired in as tools. Connect your account and run.