yifanyifan897645/dev-utils-mcp
MCP server with 6 essential developer utilities — UUID, Base64, hashing, JWT decode, JSON diff, regex test. Zero config, zero API keys.
Platform-specific configuration:
{
"mcpServers": {
"dev-utils-mcp": {
"command": "npx",
"args": [
"-y",
"dev-utils-mcp"
]
}
}
}Add the config above to .claude/settings.json under the mcpServers key.
Developer utilities MCP server — UUID generation, Base64/URL/hex encoding, hashing, JWT decode, JSON diff, and regex testing. All free, zero config, no API keys.
The free alternative to paid devtools MCP servers. 6 tools, ~3,300 tokens total schema cost (grade A).
npx dev-utils-mcpThat's it. No config files, no API keys, no accounts.
generate — UUID, hex, and nanoid generation"Generate 5 UUIDs"
"Give me a 32-char hex string"
"Generate 10 nanoid-style IDs"encode_decode — Base64, URL, HTML, hex"Base64 encode this API key"
"URL decode this query string"
"HTML encode this snippet for embedding"hash — MD5, SHA-1, SHA-256, SHA-512"Hash this string with SHA-256"
"Give me MD5 and SHA-512 of this text"jwt_decode — Decode JWT tokens"Decode this JWT token and tell me if it's expired"
"What's in the payload of this JWT?"Shows header, payload, expiration status, and time remaining. No signature verification (read-only decode).
json_utils — Format, minify, validate, diff, extract"Format this JSON"
"Diff these two JSON configs and show what changed"
"Validate this JSON"
"Extract the value at data.users[0].name"regex_test — Test regex patterns"Test this regex against my log file"
"Show all matches and capture groups for this pattern"Returns all matches with indices, groups, and named groups.
{
"mcpServers": {
"dev-utils": {
"command": "npx",
"args": ["dev-utils-mcp"]
}
}
}Add to .cursor/mcp.json:
{
"mcpServers": {
"dev-utils": {
"command": "npx",
"args": ["dev-utils-mcp"]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json:
{
"mcpServers": {
"dev-utils": {
"command": "npx",
"args": ["dev-utils-mcp"]
}
}
}Every develop
Loading reviews...