perplexity-mcp-server
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A Perplexity API Model Context Protocol (MCP) server that unlocks Perplexity's search-augmented AI capabilities for LLM agents. Features robust error handling, secure input validation, and transparent reasoning with the showThinking parameter. Built with
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TypeScript
import { z } from "zod";
import { McpToolResponse } from "./mcp.js";
/**
* Defines a set of standardized error codes for common issues within MCP servers or tools.
* These codes help clients understand the nature of an error programmatically.
*/
export declare enum BaseErrorCode {
/** Access denied due to invalid credentials or lack of authentication. */
UNAUTHORIZED = "UNAUTHORIZED",
/** Access denied despite valid authentication, due to insufficient permissions. */
FORBIDDEN = "FORBIDDEN",
/** The requested resource or entity could not be found. */
NOT_FOUND = "NOT_FOUND",
/** The request could not be completed due to a conflict with the current state of the resource. */
CONFLICT = "CONFLICT",
/** The request failed due to invalid input parameters or data. */
VALIDATION_ERROR = "VALIDATION_ERROR",
/** The request was rejected because the client has exceeded rate limits. */
RATE_LIMITED = "RATE_LIMITED",
/** The request timed out before a response could be generated. */
TIMEOUT = "TIMEOUT",
/** The service is temporarily unavailable, possibly due to maintenance or overload. */
SERVICE_UNAVAILABLE = "SERVICE_UNAVAILABLE",
/** An unexpected error occurred on the server side. */
INTERNAL_ERROR = "INTERNAL_ERROR",
/** An error occurred, but the specific cause is unknown or cannot be categorized. */
UNKNOWN_ERROR = "UNKNOWN_ERROR",
/** An error occurred during the loading or validation of configuration data. */
CONFIGURATION_ERROR = "CONFIGURATION_ERROR"
}
/**
* Custom error class for MCP-specific errors.
* Encapsulates a `BaseErrorCode`, a descriptive message, and optional details.
* Provides a method to format the error into a standard MCP tool response.
*/
export declare class McpError extends Error {
code: BaseErrorCode;
details?: Record<string, unknown> | undefined;
/**
* Creates an instance of McpError.
* @param {BaseErrorCode} code - The standardized error code.
* @param {string} message - A human-readable description of the error.
* @param {Record<string, unknown>} [details] - Optional additional details about the error.
*/
constructor(code: BaseErrorCode, message: string, details?: Record<string, unknown> | undefined);
/**
* Converts the McpError instance into a standard MCP tool response format.
* This is useful for returning structured errors from tool handlers.
* @returns {McpToolResponse} An object representing the error, suitable for an MCP tool response.
*/
toResponse(): McpToolResponse;
}
/**
* Zod schema for validating error objects, potentially used for parsing
* error responses or validating error structures internally.
*/
export declare const ErrorSchema: z.ZodObject<{
/** The error code, corresponding to BaseErrorCode enum values. */
code: z.ZodNativeEnum<typeof BaseErrorCode>;
/** A human-readable description of the error. */
message: z.ZodString;
/** Optional additional details or context about the error. */
details: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
}, "strip", z.ZodTypeAny, {
message: string;
code: BaseErrorCode;
details?: Record<string, unknown> | undefined;
}, {
message: string;
code: BaseErrorCode;
details?: Record<string, unknown> | undefined;
}>;
/**
* TypeScript type inferred from `ErrorSchema`.
* Represents a validated error object structure.
* @typedef {z.infer<typeof ErrorSchema>} ErrorResponse
*/
export type ErrorResponse = z.infer<typeof ErrorSchema>;