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Connect Harmonic to Claude Cowork

Give Claude Cowork governed access to Harmonic’s 47 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Book a demo Claude Cowork setup guide

Set up

Add Harmonic to Claude Cowork in four steps

Admins approve the server once. Everyone in Claude Cowork then gets it through the same governed connection.

  1. 1

    Add Harmonic to Runlayer

    Harmonic isn’t in the Runlayer catalog yet, so an admin adds it by its MCP server URL.

    Adding a connector manually
  2. 2

    Connect Claude Cowork to Runlayer

    Claude Cowork gets connector tools through the Runlayer Plugin. With direct tool listing turned on for your deployment, Harmonic’s 47 tools show up in Claude Cowork’s own tool list.

    Claude Cowork setup guide
  3. 3

    Sign in to Harmonic

    Sign in the way Harmonic requires. Runlayer holds the credentials so they stay out of the client’s configuration.

  4. 4

    Use Harmonic from Claude Cowork

    Harmonic’s approved tools appear in Claude Cowork. Every call is checked against policy and recorded.

Tools

47 Harmonic tools in Claude Cowork

Runlayer policy decides which of these Claude Cowork users can call.

  • Add companies to list

    Add companies to an existing company list.

  • Add people to list

    Add people to an existing people list.

  • Create company list

    Create a new company list.

  • Create company list custom field

    Create a custom field (column) for a company list.

  • Create global custom field

    Create a new global custom field for companies or people.

  • Create list

    Create an empty company, person, or investor list in the workspace's shared project.

  • Create list custom field

    Create a custom field on any company, person, or investor list.

  • Create list entries

    Add Harmonic companies, people, or investors to an existing list by creating list entries from their URNs.

See all 47 Harmonic tools

Control

What Runlayer can see and stop in Claude Cowork

Some controls apply to every client at the gateway. Others depend on what Claude Cowork exposes to Runlayer.

  • Gateway policy (available)

    Every Harmonic call from Claude Cowork passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, Claude Cowork as the client, the tool, and the policy and scanner decisions.

  • Anthropic inference hooks (available)

    Anthropic Inference hooks let Runlayer check Claude Cowork prompts before inference.

  • OTLP telemetry (available)

    Claude Cowork can send supported OpenTelemetry events to Runlayer for observe-only session visibility.

  • Stop a call before it runs (available)

    Runlayer can reject a Claude Cowork prompt before Anthropic runs it, which stops the whole request rather than one tool call.

  • Block output after it runs (available)

    Because Runlayer checks the full prompt, tool results in it can be blocked before the model sees them.

  • Redact output in place (not available)

    Runlayer cannot mask content in Claude Cowork. The gateway still applies policy to the call.

In Claude Cowork

  • Cowork session data sent over OpenTelemetry is for monitoring only and cannot stop anything.

Frequently asked questions

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