> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://learning.postman.com/llms.txt.

# Discover MCPs, agents, and LLM resources

The Postman Gateway Catalog is an inventory of every resource connected to your AI gateway, for example, MCP servers, agents, LLM providers, and services.

To access this catalog, go to **Gateway** > **Catalog**.

<img alt="Fabric Gateway" src="https://assets.postman.com/postman-docs/v12/fabric-gateway.png" />

## Filter resources

Use the tabs to scope the view: **All**, **MCPs**, **Agents**, **LLMs**, **Services**. Use **Search resources** to jump to a resource by name.

Each resource card displays key information about the resource:

| Field             | Meaning                             |
| ----------------- | ----------------------------------- |
| Name + status dot | Resource name, green = active       |
| Category label    | for example, `AI Platform`          |
| Type badge        | `LLM` or `MCP`, top-right           |
| Status tags       | `Active`, `Open` (access policy)    |
| Endpoint URL      | Upstream target                     |
| Description       | What it does, sometimes model count |
| Tags              | Platform/type labels                |
| Upstream count    | Number of upstream targets          |

## Add a resource

Use this option when a provider has no template under **Integrations**.

1. Click **Add resource**.

   <img alt="Add resource" src="https://assets.postman.com/postman-docs/v12/fabric-gateway-add-resource.png" />

2. Choose a **service type**:
   * **LLM** — Provider from Postman's catalog
   * **MCP** — Model Context Protocol server
   * **A2A** — Agent-to-agent connection
   * **HTTP** — plain REST endpoint or webhook (use for internal services)

3. Enter a **Name** (lowercase, digits, `.` `_` `-`, must start with lowercase letter/digit).

4. Enter the **Target URL**.

5. If the upstream needs auth, select **Upstream auth requirement** and specify who provides the credential — caller or gateway.

6. Click **Add Resource** to save, or **Cancel** to discard.

## Tips

* Prefer **Integrations** over manual add when a template exists — auth and endpoints come pre-scaffolded.
* Filter to a tab before searching in large catalogs — faster than searching **All**.
* Seeing near-duplicate entries? Check [**Audit logs**](/fabric-gateway/product/observability/audit-logs/) for creation history before deleting.
* Cross-check a resource against **Routes** (what points to it) and **Credentials** (what auth it uses).