# Create mcp

URL: https://docs.hanzo.ai/docs/openapi/agent/post-agent-mcp-by-server

> Speaks MCP over streamable HTTP for one of the org's MCP servers, named by its id: tools/list answers the tools of it an admin of the org activated, and tools/call calls one.

`POST /v1/agent/mcp/{server}`

> [Agent →](https://docs.hanzo.ai/docs/openapi/agent) · [All API references →](https://docs.hanzo.ai/docs/openapi) · [Get started →](https://docs.hanzo.ai/docs/guides)

|               |                                              |
| ------------- | -------------------------------------------- |
| **Address**   | `https://api.hanzo.ai/v1/agent/mcp/{server}` |
| **Method**    | `POST`                                       |
| **Operation** | `post_agent_mcp_by_server`                   |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`       |

Speaks MCP over streamable HTTP for one of the org's MCP servers, named by its id: tools/list answers the tools of it an admin of the org activated, and tools/call calls one. The server's address and credential never reach the run: the tool plane adds the credential and dials the server.

The caller is a coding run, not a tenant: the request carries the run's ticket in X-Hanzo-Run and no bearer. A request without a live ticket is 401, and a server the run's kit did not carry when it started is 403. A run has at most four requests in flight here and twenty in a burst, then one a second; a request past that is 429 with Retry-After.

## Request

1 field.

| Field    | In   | Type   | Required | Description |
| -------- | ---- | ------ | -------- | ----------- |
| `server` | path | string | yes      |             |

## Response

The document declares no response body for this operation. It answers `200` on success and the platform error shape on failure — see [Errors](https://docs.hanzo.ai/docs/errors).

## Examples

**CLI**

`hanzo` has no subcommand for this operation — the CLI serves only what cloud's live route table confirms. Use HTTP or an SDK.

**SDK**

**.ts**

```ts
import { Configuration, AgentApi } from 'hanzoai';

const api = new AgentApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postAgentMcpByServer({ server: 'server' });
```

**.py**

```python
from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import AgentApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = AgentApi(client).post_agent_mcp_by_server(server='server')
```

**.go**

```go
cfg := hanzoai.NewConfiguration()
cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY"))
client := hanzoai.NewAPIClient(cfg)

resp, _, err := client.AgentAPI.PostAgentMcpByServer(context.Background()).Execute()
if err != nil {
	return err
}
```

**.rs**

```rust
use hanzo_client::apis::{configuration::Configuration, agent_api};

let mut cfg = Configuration::new();
cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok();

let result = agent_api::post_agent_mcp_by_server(&cfg, Default::default()).await?;
```

**.java**

```java
import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.AgentApi;

ApiClient client = new ApiClient();
client.setBearerToken(System.getenv("HANZO_API_KEY"));

var result = new AgentApi(client).postAgentMcpByServer();
```

**HTTP**

```bash
curl -X POST https://api.hanzo.ai/v1/agent/mcp/<server> \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

MCP reaches **agent** through the `agent` tool, which names its 38 operations with its own verbs — this one among them, under a name only MCP declares. `describe` explains any of them:

```bash
curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "describe",
         "arguments": {
           "op": "list_agents"
         }
       }
     }'
```

---

[Agent API](https://docs.hanzo.ai/docs/openapi/agent) · [All Hanzo APIs](https://docs.hanzo.ai/docs/openapi) · [Interactive reference](https://docs.hanzo.ai/docs/openapi/reference)