setMarginType
Change margin type for cryptocurrency trading positions between isolated and crossed modes to manage risk exposure on Aster Finance exchange.
Instructions
Change margin type.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| marginType | Yes | ||
| symbol | Yes |
Implementation Reference
- src/index.ts:667-668 (handler)The handler logic for the 'setMarginType' tool. It makes a signed POST request to the Aster API endpoint '/fapi/v1/marginType' with the provided arguments.
case 'setMarginType': return makeRequest('POST', '/fapi/v1/marginType', args, true); - src/index.ts:410-421 (registration)Registration of the 'setMarginType' tool in the listTools response, including its description and input schema definition.
{ name: 'setMarginType', description: 'Change margin type.', inputSchema: { type: 'object', properties: { symbol: { type: 'string' }, marginType: { type: 'string', enum: ['ISOLATED', 'CROSSED'] }, }, required: ['symbol', 'marginType'], }, }, - src/index.ts:413-420 (schema)Input schema for the 'setMarginType' tool, defining parameters: symbol (string) and marginType (string, enum: ['ISOLATED', 'CROSSED']).
inputSchema: { type: 'object', properties: { symbol: { type: 'string' }, marginType: { type: 'string', enum: ['ISOLATED', 'CROSSED'] }, }, required: ['symbol', 'marginType'], }, - src/index.ts:542-579 (helper)Shared helper function 'makeRequest' used by the setMarginType handler (and others) to perform API requests to Asterdex, handling signing with API key/secret for authenticated endpoints.
const makeRequest = async (method: 'GET' | 'POST' | 'DELETE', path: string, params: any, isSigned = false) => { try { let config: any = { method, url: path, }; if (isSigned) { if (!API_KEY || !API_SECRET) { throw new McpError(ErrorCode.InvalidRequest, 'API_KEY and API_SECRET must be configured.'); } params.timestamp = Date.now(); const queryString = new URLSearchParams(params).toString(); const signature = crypto.createHmac('sha256', API_SECRET).update(queryString).digest('hex'); params.signature = signature; config.headers = { 'X-MBX-APIKEY': API_KEY }; } if (method === 'GET' || method === 'DELETE') { config.params = params; } else { // POST config.data = new URLSearchParams(params).toString(); config.headers = { ...config.headers, 'Content-Type': 'application/x-www-form-urlencoded' }; } const response = await this.axiosInstance.request(config); return { content: [{ type: 'text', text: JSON.stringify(response.data, null, 2) }] }; } catch (error) { if (axios.isAxiosError(error)) { throw new McpError( ErrorCode.InternalError, `Aster API error: ${error.response?.data?.msg || error.message}` ); } throw error; } };