Shared utility functions for FrontMCP - string manipulation, URI handling, path utilities, and more
npm install @frontmcp/utilsShared utility functions for the FrontMCP ecosystem.
> Internal package. Used by @frontmcp/sdk and other @frontmcp/* libraries — most users do not need to install this directly.
``bash`
npm install @frontmcp/utils
Naming — splitWords, toCase, shortHash, ensureMaxLen, idFromString for string manipulation and case conversion
URI — isValidMcpUri, extractUriScheme, parseUriTemplate, matchUriTemplate, expandUriTemplate (RFC 3986 / RFC 6570)
Path — trimSlashes, joinPath for URL path operations
Content — sanitizeToJson, inferMimeType for safe serialization and MIME detection
HTTP — validateBaseUrl for URL validation and normalization
Crypto — sha256, sha256Hex, sha256Base64url, hkdfSha256, encryptAesGcm, decryptAesGcm, randomBytes, randomUUID, generateCodeVerifier, generateCodeChallenge, generatePkcePair, base64urlEncode, base64urlDecode for cross-platform cryptography
File system — readFile, writeFile, mkdir, stat, fileExists, readJSON, writeJSON, ensureDir, isDirEmpty, runCmd and more — lazy-loaded for Node.js environments
`ts
import { matchUriTemplate, sha256Hex, fileExists } from '@frontmcp/utils';
const params = matchUriTemplate('users/{id}/posts/{postId}', 'users/123/posts/456');
// { id: '123', postId: '456' }
const hash = sha256Hex('hello world');
const exists = await fileExists('/path/to/file');
`
- @frontmcp/sdk — core framework
- @frontmcp/auth` — uses crypto utilities for PKCE, encryption
Apache-2.0 — see LICENSE.