Linked API MCP

Instructions

Implementation Reference

• src/tools/fetch-company.ts:7-154 (handler)

  The FetchCompanyTool class implements the 'fetch_company' MCP tool. It extends OperationTool, defines the tool name, the specific LinkedIn API operationName, Zod input schema for validation, and the getTool() method that returns the MCP Tool definition with inputSchema.
  export class FetchCompanyTool extends OperationTool<TFetchCompanyParams, unknown> { public override readonly name = 'fetch_company'; public override readonly operationName = OPERATION_NAME.fetchCompany; protected override readonly schema = z.object({ companyUrl: z.string(), retrieveEmployees: z.boolean().optional().default(false), retrievePosts: z.boolean().optional().default(false), retrieveDMs: z.boolean().optional().default(false), postRetrievalConfig: z .object({ limit: z.number().min(1).max(20).optional(), since: z.string().optional(), }) .optional(), dmRetrievalConfig: z .object({ limit: z.number().min(1).max(20).optional(), }) .optional(), employeeRetrievalConfig: z .object({ limit: z.number().min(1).max(500).optional(), filter: z .object({ firstName: z.string().optional(), lastName: z.string().optional(), position: z.string().optional(), locations: z.array(z.string()).optional(), industries: z.array(z.string()).optional(), schools: z.array(z.string()).optional(), }) .optional(), }) .optional(), }); public override getTool(): Tool { return { name: this.name, description: 'Allows you to open a company page to retrieve its basic information (st.openCompanyPage action). Can optionally retrieve employees, posts and decision makers.', inputSchema: { type: 'object', properties: { companyUrl: { type: 'string', description: "Public or hashed LinkedIn URL of the company. (e.g., 'https://www.linkedin.com/company/microsoft')", }, retrieveEmployees: { type: 'boolean', description: "Optional. Whether to retrieve the company's employees information. Default is false.", }, retrievePosts: { type: 'boolean', description: "Optional. Whether to retrieve the company's posts information. Default is false.", }, retrieveDMs: { type: 'boolean', description: "Optional. Whether to retrieve the company's decision makers information. Default is false.", }, postRetrievalConfig: { type: 'object', description: 'Optional. Configuration for retrieving posts. Available only if retrievePosts is true.', properties: { limit: { type: 'number', description: 'Optional. Number of posts to retrieve. Defaults to 20, with a maximum value of 20.', }, since: { type: 'string', description: 'Optional. ISO 8601 timestamp to filter posts published after the specified time.', }, }, }, dmRetrievalConfig: { type: 'object', description: 'Optional. Configuration for retrieving decision makers. Available only if retrieveDMs is true.', properties: { limit: { type: 'number', description: 'Optional. Number of decision makers to retrieve. Defaults to 20, with a maximum value of 20. If a company has fewer decision makers than specified, only the available ones will be returned.', }, }, }, employeeRetrievalConfig: { type: 'object', description: 'Optional. Configuration for retrieving employees. Available only if retrieveEmployees is true.', properties: { limit: { type: 'number', description: 'Optional. Maximum number of employees to retrieve. Defaults to 500, with a maximum value of 500.', }, filter: { type: 'object', description: 'Optional. Object that specifies filtering criteria for employees. When multiple filter fields are specified, they are combined using AND logic.', properties: { firstName: { type: 'string', description: 'Optional. First name of employee.', }, lastName: { type: 'string', description: 'Optional. Last name of employee.', }, position: { type: 'string', description: 'Optional. Job position of employee.', }, locations: { type: 'array', description: 'Optional. Array of free-form strings representing locations. Matches if employee is located in any of the listed locations.', items: { type: 'string' }, }, industries: { type: 'array', description: 'Optional. Array of enums representing industries. Matches if employee works in any of the listed industries. Takes specific values available in the LinkedIn interface.', items: { type: 'string' }, }, schools: { type: 'array', description: 'Optional. Array of institution names. Matches if employee currently attends or previously attended any of the listed institutions.', items: { type: 'string' }, }, }, }, }, }, }, required: ['companyUrl'], }, }; } }
• src/linked-api-tools.ts:47-47 (registration)

  Instantiates and registers the FetchCompanyTool in the LinkedApiTools class's tools array, making it available as part of the MCP tools collection.
  new FetchCompanyTool(progressCallback),
• src/utils/linked-api-tool.ts:36-58 (handler)

  The OperationTool base class provides the core execute handler logic for operation-based tools like fetch_company. It looks up the specific operation by name from the LinkedAPI instance and executes it with progress tracking.
  export abstract class OperationTool<TParams, TResult> extends LinkedApiTool<TParams, TResult> { public abstract readonly operationName: TOperationName; public override execute({ linkedapi, args, workflowTimeout, progressToken, }: { linkedapi: LinkedApi; args: TParams; workflowTimeout: number; progressToken?: string | number; }): Promise<TMappedResponse<TResult>> { const operation = linkedapi.operations.find( (operation) => operation.operationName === this.operationName, )! as Operation<TParams, TResult>; return executeWithProgress(this.progressCallback, operation, workflowTimeout, { params: args, progressToken, }); } }
• src/tools/fetch-company.ts:43-153 (schema)

  Defines the MCP-compatible inputSchema for the fetch_company tool, matching the Zod schema for validation.
  public override getTool(): Tool { return { name: this.name, description: 'Allows you to open a company page to retrieve its basic information (st.openCompanyPage action). Can optionally retrieve employees, posts and decision makers.', inputSchema: { type: 'object', properties: { companyUrl: { type: 'string', description: "Public or hashed LinkedIn URL of the company. (e.g., 'https://www.linkedin.com/company/microsoft')", }, retrieveEmployees: { type: 'boolean', description: "Optional. Whether to retrieve the company's employees information. Default is false.", }, retrievePosts: { type: 'boolean', description: "Optional. Whether to retrieve the company's posts information. Default is false.", }, retrieveDMs: { type: 'boolean', description: "Optional. Whether to retrieve the company's decision makers information. Default is false.", }, postRetrievalConfig: { type: 'object', description: 'Optional. Configuration for retrieving posts. Available only if retrievePosts is true.', properties: { limit: { type: 'number', description: 'Optional. Number of posts to retrieve. Defaults to 20, with a maximum value of 20.', }, since: { type: 'string', description: 'Optional. ISO 8601 timestamp to filter posts published after the specified time.', }, }, }, dmRetrievalConfig: { type: 'object', description: 'Optional. Configuration for retrieving decision makers. Available only if retrieveDMs is true.', properties: { limit: { type: 'number', description: 'Optional. Number of decision makers to retrieve. Defaults to 20, with a maximum value of 20. If a company has fewer decision makers than specified, only the available ones will be returned.', }, }, }, employeeRetrievalConfig: { type: 'object', description: 'Optional. Configuration for retrieving employees. Available only if retrieveEmployees is true.', properties: { limit: { type: 'number', description: 'Optional. Maximum number of employees to retrieve. Defaults to 500, with a maximum value of 500.', }, filter: { type: 'object', description: 'Optional. Object that specifies filtering criteria for employees. When multiple filter fields are specified, they are combined using AND logic.', properties: { firstName: { type: 'string', description: 'Optional. First name of employee.', }, lastName: { type: 'string', description: 'Optional. Last name of employee.', }, position: { type: 'string', description: 'Optional. Job position of employee.', }, locations: { type: 'array', description: 'Optional. Array of free-form strings representing locations. Matches if employee is located in any of the listed locations.', items: { type: 'string' }, }, industries: { type: 'array', description: 'Optional. Array of enums representing industries. Matches if employee works in any of the listed industries. Takes specific values available in the LinkedIn interface.', items: { type: 'string' }, }, schools: { type: 'array', description: 'Optional. Array of institution names. Matches if employee currently attends or previously attended any of the listed institutions.', items: { type: 'string' }, }, }, }, }, }, }, required: ['companyUrl'], }, }; }