> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-codex-simplify-get-started.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Use Remesh with Comfy Router

> Call meshy/remesh through Comfy Router: endpoint, request shape and the response Router returns.

API Reference for `meshy/remesh`, served by Comfy Router from Meshy.

## Quick start

Create a key in [your Comfy workspace](https://platform.comfy.org/profile/api-keys) and export it as `COMFY_API_KEY`. The Python and TypeScript snippets use the Comfy SDKs (`pip install comfy-sdk`, `npm install @comfyorg/sdk`); the cURL snippet is the same call over raw HTTP.

**Model ID:** `meshy/remesh`

**Endpoint:** `POST https://api.comfy.org/v2/models/meshy/remesh`

<CodeGroup>
  ```python Python theme={null}
  from comfy_sdk import Comfy

  # Reads COMFY_API_KEY from the environment.
  # The SDK automatically creates an idempotency key and reuses it for automatic retries.
  with Comfy() as client:
      result = client.models.run(
          "meshy/remesh",
          {
              "input_task_id": "0193abcd-0000-0000-0000-000000000000",
              "origin_at": "bottom",
              "resize_height": 1,
              "target_formats": ["glb", "fbx"],
              "target_polycount": 50000,
              "topology": "quad",
          },
      )

  print(result)
  ```

  ```typescript TypeScript theme={null}
  import { comfy } from "@comfyorg/sdk";

  // Reads COMFY_API_KEY from the environment.
  // The SDK automatically creates an idempotency key and reuses it for automatic retries.
  const { data } = await comfy.models.run("meshy/remesh", {
    input_task_id: "0193abcd-0000-0000-0000-000000000000",
    origin_at: "bottom",
    resize_height: 1,
    target_formats: ["glb", "fbx"],
    target_polycount: 50000,
    topology: "quad",
  });

  console.log(data);
  ```

  ```bash cURL theme={null}
  curl https://api.comfy.org/v2/models/meshy/remesh \
    -H "X-API-Key: $COMFY_API_KEY" \
    -H "Idempotency-Key: $(uuidgen)" \
    -H "Content-Type: application/json" \
    -d "{\"input_task_id\": \"0193abcd-0000-0000-0000-000000000000\", \"origin_at\": \"bottom\", \"resize_height\": 1, \"target_formats\": [\"glb\",\"fbx\"], \"target_polycount\": 50000, \"topology\": \"quad\"}"
  ```
</CodeGroup>

## Schema

### Input

<ParamField body="convert_format_only" type="boolean" default="false">
  If true, only changes the format of the input model file, ignoring other inputs like topology, resize\_height, and target\_polycount.
</ParamField>

<ParamField body="input_task_id" type="string">
  The ID of the completed Image to 3D or Text to 3D task you wish to remesh. Required if model\_url is not provided.
</ParamField>

<ParamField body="model_url" type="string">
  A publicly accessible URL or data URI to a 3D model. Supported formats glb, gltf, obj, fbx, stl. Required if input\_task\_id is not provided.
</ParamField>

<ParamField body="origin_at" type="string">
  Position of the origin.

  Possible values: `bottom`, `center`, \`\`
</ParamField>

<ParamField body="resize_height" type="number" default="0">
  Resize the model to a certain height measured in meters. 0 means no resizing.
</ParamField>

<ParamField body="target_formats" type="`glb`, `fbx`, `obj`, `usdz`, `blend`, `stl`[]" default="[&#x22;glb&#x22;]">
  A list of target formats for the remeshed model.
</ParamField>

<ParamField body="target_polycount" type="integer" default="30000">
  Specify the target number of polygons in the generated model. Valid range is 100 to 300,000.

  Range: `100` to `300000`
</ParamField>

<ParamField body="topology" type="string" default="&#x22;triangle&#x22;">
  Specify the topology of the generated model.

  Possible values: `quad`, `triangle`
</ParamField>

Generated from the schema Router serves at `GET /v2/models/meshy/remesh/openapi.json`, the same document it validates a call against before the request reaches the provider.

### Output

<ResponseField name="created_at" type="integer">
  Timestamp of when the task was created, in milliseconds.

  Format: `int64`
</ResponseField>

<ResponseField name="finished_at" type="integer">
  Timestamp of when the task was finished, in milliseconds. 0 if not finished.

  Format: `int64`
</ResponseField>

<ResponseField name="id" type="string" required>
  Unique identifier for the task.
</ResponseField>

<ResponseField name="model_urls" type="object">
  Downloadable URLs to the remeshed 3D model files.
</ResponseField>

<ResponseField name="model_urls.blend" type="string">
  Downloadable URL to the Blender file.
</ResponseField>

<ResponseField name="model_urls.fbx" type="string">
  Downloadable URL to the FBX file.
</ResponseField>

<ResponseField name="model_urls.glb" type="string">
  Downloadable URL to the GLB file.
</ResponseField>

<ResponseField name="model_urls.obj" type="string">
  Downloadable URL to the OBJ file.
</ResponseField>

<ResponseField name="model_urls.stl" type="string">
  Downloadable URL to the STL file.
</ResponseField>

<ResponseField name="model_urls.usdz" type="string">
  Downloadable URL to the USDZ file.
</ResponseField>

<ResponseField name="preceding_tasks" type="integer">
  The count of preceding tasks. Only meaningful when status is PENDING.
</ResponseField>

<ResponseField name="progress" type="integer">
  Progress of the task. 0 if not started, 100 when succeeded.

  Range: `0` to `100`
</ResponseField>

<ResponseField name="started_at" type="integer">
  Timestamp of when the task was started, in milliseconds. 0 if not started.

  Format: `int64`
</ResponseField>

<ResponseField name="status" type="string" required>
  Possible values: `SUCCEEDED`
</ResponseField>

<ResponseField name="task_error" type="object">
  Error object that contains the error message if the task failed.
</ResponseField>

<ResponseField name="task_error.message" type="string">
  Detailed error message.
</ResponseField>

<ResponseField name="type" type="string">
  Type of the Remesh task.

  Possible values: `remesh`
</ResponseField>

## Examples

### Input

```json theme={null}
{
  "input_task_id": "0193abcd-0000-0000-0000-000000000000",
  "origin_at": "bottom",
  "resize_height": 1,
  "target_formats": [
    "glb",
    "fbx"
  ],
  "target_polycount": 50000,
  "topology": "quad"
}
```

### Output

```json theme={null}
{
  "created_at": 1767225600000,
  "finished_at": 1767225663000,
  "id": "018f2c7a-4b1e-7c3d-9a05-6e2f8b41d0c9",
  "model_urls": {
    "fbx": "https://example.invalid/meshy/remesh/model.fbx",
    "glb": "https://example.invalid/meshy/remesh/model.glb",
    "obj": "https://example.invalid/meshy/remesh/model.obj"
  },
  "progress": 100,
  "started_at": 1767225601000,
  "status": "SUCCEEDED",
  "type": "remesh"
}
```

## Before you ship

The SDKs create an `Idempotency-Key` and reuse it for automatic retries. For manual retries, reuse the original key. Router can hold the connection for up to 10 minutes.

When a request fails, Router sends an `X-Comfy-Error-Type` response header explaining why. A `422` means Router rejected the input before calling the provider. Download generated assets promptly because [result URLs can expire](/development/comfy-router/reference#result-assets).

<CardGroup cols={3}>
  <Card title="Headers" icon="list" href="/development/comfy-router/headers">
    Authentication, idempotency, request IDs, error buckets, retry pacing, spend limits.
  </Card>

  <Card title="Using the Router API" icon="code" href="/development/comfy-router/api">
    Model discovery, validation errors, retries, and billing.
  </Card>

  <Card title="Limitations" icon="triangle-exclamation" href="/development/comfy-router/limitations">
    What Router does not do today, and what to use instead.
  </Card>
</CardGroup>