Use Pathbound with LangSmith Fleet.

A Fleet agent can work through the queue, but it needs the account history behind each item. Add Pathbound as a remote MCP server and the agent can read the resolved customer profile before it drafts, classifies, or requests an update.

What you get

Customer context, inside LangSmith Fleet.

Fleet discovers Pathbound tools from the remote server and makes them available beside its built-in tools. Add Pathbound to one agent while testing, then move it to workspace integrations if several agents need the same customer context.

Connect

Connect LangSmith Fleet in about five minutes.

Start by attaching Pathbound to one Fleet agent. Use automatic OAuth for user-scoped access. Use a bearer header only when the agent is meant to act through a shared Pathbound credential.

One Fleet agent with per-user access

OAuth 2.1 Auto
  1. Open the agent in the Fleet inbox and select Edit Agent. You need the MCP Server Create permission; a workspace admin can grant it.

  2. In Toolbox, select MCP. Name the server Pathbound and enter https://mcp.pathbound.ai/mcp.

  3. Choose OAuth 2.1 (Auto), save the agent, and complete the Pathbound browser sign-in when prompted.

  4. Ask the agent to read a known contact before enabling broader jobs. Review the discovered write tools separately from reads.

Shared workspace credential

Bearer API key
  1. In LangSmith, open Fleet → Integrations and select + Custom MCP. You can also use Settings → MCP servers → Add server.

  2. Name the server Pathbound and enter https://mcp.pathbound.ai/mcp.

  3. Choose Headers. Add the key Authorization with the value Bearer YOUR_PATHBOUND_API_KEY. Use a scoped key created for this agent, not a personal key copied from another environment.

  4. Save the server, attach the discovered tools to the intended agents, and test one read-only job before expanding access.

First prompts

What LangSmith Fleet can do with your data.

Once connected, these are real jobs LangSmith Fleet runs against your customer data. Each recipe is one tested prompt—paste it and go.

Try this prompt in LangSmith Fleet
Research every trial signup from the last 24 hours. For each one, pull their profile and company details, read what they did on our site and in the product, and work out who they are and whether the account is a fit. Write a short research brief as a note on each contact (who they are, what they did, verdict, suggested opener), then give me the list ranked by how promising they look, with one line each on why.
See the full recipe—Trial-signup research

More jobs in use cases, each with a tested prompt.

Fleet access, credentials, and tool control.

Should I add Pathbound to one agent or the whole workspace?

Start with one agent while testing its instructions and tool access. Add Pathbound through Fleet Integrations or workspace MCP settings when several reviewed agents need the same server configuration.

When should Fleet use OAuth?

Use OAuth 2.1 (Auto) when each person should connect their own Pathbound account and inherit their own permissions. Fleet prompts the user to sign in through Pathbound’s OAuth flow.

When should Fleet use a bearer header?

Use a bearer header for a shared or unattended agent identity. Create a Pathbound REST API key with only the scopes that agent needs and store it in the Fleet MCP configuration. Anyone who can configure or invoke that integration may be able to exercise those scopes.

Why can’t I add the Pathbound server?

Adding a remote MCP server requires the MCP Server Create permission in LangSmith. Ask a workspace admin to grant the permission or add the server on the team’s behalf.

Can Fleet change customer data through Pathbound?

Only through write tools allowed by the Pathbound credential and connected source. Keep the first agent read-only, then enable individual write tools with explicit review or approval steps. Versioning and rollback are not live yet.

Do I need LangChain application code?

No. Fleet connects to remote MCP servers from the LangSmith UI. Use the LangChain and LangGraph setup when you own the agent application and want to load Pathbound tools in Python or TypeScript.

Related
Try it on your own data

Within five minutes, your agent is querying real customer context.

Sign up, connect one CRM or drop the events snippet, and point your MCP client at mcp.pathbound.ai/mcp.