# calibrate-imu

`station__suit-sensors__calibrate-imu` · external (needs EXECUTION_BACKEND_URL configured) · domain `suit-sensors` · pv-relevance `non-pv`

Apply calibration to a raw 9-DOF IMU reading — removes accelerometer bias/scale, gyroscope bias, and magnetometer hard-iron offset

> **Note:** This tool routes through an external execution backend. If `EXECUTION_BACKEND_URL` is unset on the server, calls return JSON-RPC error `-32603 "Tool execution backend not configured"`. Tools with `backend: native` execute in-process and are always callable.

## Agent metadata

- `idempotent`: unknown
- `read_only`: unknown
- `expected_latency_ms`: unknown (not yet contract-tested)
- `cost_tokens_estimate`: unknown

## Input schema

- `accel_x` *number* (required) — Raw accelerometer X (m/s²)
- `accel_y` *number* (required) — Raw accelerometer Y (m/s²)
- `accel_z` *number* (required) — Raw accelerometer Z (m/s²)
- `gyro_x` *number* (required) — Raw gyroscope X (rad/s)
- `gyro_y` *number* (required) — Raw gyroscope Y (rad/s)
- `gyro_z` *number* (required) — Raw gyroscope Z (rad/s)
- `accel_bias_x` *number* — Accel bias X (m/s²)
- `accel_bias_y` *number* — Accel bias Y (m/s²)
- `accel_bias_z` *number* — Accel bias Z (m/s²)
- `gyro_bias_x` *number* — Gyro bias X (rad/s)
- `gyro_bias_y` *number* — Gyro bias Y (rad/s)
- `gyro_bias_z` *number* — Gyro bias Z (rad/s)

## Example call

```json
POST /api/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__suit-sensors__calibrate-imu",
    "arguments": {
      "accel_x": 0,
      "accel_y": 0,
      "accel_z": 0,
      "gyro_x": 0,
      "gyro_y": 0,
      "gyro_z": 0
    }
  }
}
```

## Related

- [/tools](/tools) — all 3062 tools
- [/tools/suit-sensors__calibrate-imu](/tools/suit-sensors__calibrate-imu) — HTML page
- [/tools/suit-sensors__calibrate-imu/json](/tools/suit-sensors__calibrate-imu/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide