MCP servers that ship as code — a repository or a package you install and run locally (usually over stdio). They have no hosted endpoint, so we cannot probe or grade them: instead each one shows its repository, install command, license, stars and when it was last updated.
Collected from GitHub repositories and npm, PyPI, Cargo, Go, Maven, NuGet and RubyGems packages tagged as MCP servers, the official MCP Registry, Docker's MCP catalog, ModelScope, Baidu MCP World, Cline and other public directories; one entry per repository. A server that also offers a hosted endpoint is listed under Remote instead. These entries are not counted in our reachability, verification or readiness statistics.
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jwt-base64-decoder-mcpgithub.com/vinkius-labs/jwt-base64-decoder-mcpupdated this year
Vinkius Edge high-performance Model Context Protocol (MCP) server for decoding JWT tokens and Base64 strings.
★ 3 -
AI-powered logic analyzer control via Model Context Protocol - connect Claude, Cursor to sigrok-cli for automated signal capture and protocol decoding
MIT ★ 15 -
Open-source USB oscilloscope software for Hantek 6022BE and other Hantek models: triggers, FFT, protocol decoders, MCP server, Python API. macOS, Windows, Linux.
Apache-2.0 -
@mate-tools/mcp-servergithub.com/matetools/mcp-serverupdated this year
Model Context Protocol (MCP) server for mate.tools — exposes 35 utility tools to Claude Desktop, Claude Code, Cursor, Windsurf and any other MCP-compatible AI agent. Includes: count-lines, base64-encode/decode, url-encode/decode, hash, password, password-
npm MIT -
Read-only Sui analytics: fund tracing, protocol-aware tx decoding, no API keys or wallet.
npm MIT -
woodpecker-ci-mcp-servergithub.com/coredeskdev/woodpecker-ci-mcp-serverupdated this year
MCP (Model Context Protocol) server for Woodpecker CI — let Claude & other AI assistants read pipelines, workflows, steps and decoded build logs. Zero-dependency, single-file, stdio.
MIT -
Python driver, CLI and MCP server for DreamSourceLab DSLogic U3Pro32/U3Pro16 logic analysers: capture, trigger, decode SPI/I2C/UART, save DSView .dsl files, and let an AI assistant (Claude, etc.) drive captures over the Model Context Protocol.
GPL-3.0 ★ 1 -
Model Context Protocol (MCP) server for floating-point conversions. Encode, decode, and convert numbers across FP32, FP16, BF16, TF32, FP8, FP6, FP4, and integer formats, with binary/hex breakdowns and precision-loss analysis.
npm MIT -
smartsdr-mcpgithub.com/patrickrb/smartsdr-mcpupdated this year
MCP server for FlexRadio SmartSDR - CW decode and radio control via Model Context Protocol
★ 3 -
@prefixcheck/edi-mcpgithub.com/xultrax-web/prefixcheck-edi-mcpupdated this year
MCP server for EDIFACT CODECO, COPRAR, IFTSTA, COREOR — parse, validate against SMDG, reconcile cross-message, validate ISO 6346 check digits, decode size-type, look up SMDG code lists. Wraps @prefixcheck/edi inside the Model Context Protocol so any MCP c
npm MIT -
MCP server for EDIFACT CODECO, COPRAR, IFTSTA, COREOR — parse, validate against SMDG, reconcile cross-message, validate ISO 6346 check digits, decode size-type, look up SMDG code lists. Wraps @xultrax-web/edi inside the Model Context Protocol so any MCP c
npm MIT -
This project is a Model Context Protocol (MCP) server that reports auth information about the current request. It parses the Authorization header as JWT and reports some decoded payload items from the JWT. The name is inspired by the `whoami` coreutils pa
npm MIT -
Desktop app for ChipWhisperer side-channel and fault-injection hardware: live waveforms, capture, CPA, glitch sweeps, UART/SPI/JTAG/SWD interfaces, a logic analyser with protocol decoders, firmware code mapped onto the power trace, notebooks, one-click firmware builds and an MCP server for AI agents. Linux, Windows, macOS.
Apache-2.0 ★ 27 -
Encode or decode Base64 for text and local files. URL-safe and data-URI options. Local CLI and MCP server.
MIT -
@mukundakatta/base64-mcpgithub.com/mukundakatta/base64-mcpupdated this year
MCP server: encode/decode base64, base64url, hex, and percent-encoding.
npm MIT -
@mukundakatta/jwt-mcpgithub.com/mukundakatta/jwt-mcpupdated this year
MCP server: decode JWT to inspect header and claims (no verification).
npm MIT -
vin-mcpgithub.com/keptlive/vin-mcpupdated this year
Free VIN decoder MCP server — NHTSA, EPA, safety ratings, recalls, fuel economy, vehicle photos
npm MIT -
Official Auto.dev SDK, CLI and MCP server: VIN decode, vehicle listings, specs, OEM build data, recalls, payments and taxes
★ 3 -
MCP server for U.S. vehicle records: NHTSA recalls, service bulletins, trouble codes, VIN decode, EPA fuel economy and crash ratings. Free, no API key.
MIT ★ 1 -
Deedglass lets rules decide each AI agent tool call, checks what really changed and seals a record.
npm Apache-2.0 -
mcp-crypto-toolsgithub.com/rog0x/mcp-crypto-toolsupdated this year
MCP server for cryptography: hash (MD5/SHA), encode/decode (Base64/URL/hex), UUID/nanoid generator, password tools, JWT decoder Install: npx @rog0x/mcp-crypto-tools
MIT -
Local-first developer CLI and stdio MCP server for Toolars: hash, Base64, JWT decode, UUID/ULID, timestamp, cron and URL encode/decode. Zero runtime dependencies, no network access, no telemetry.
npm MIT -
Desktop app for ChipWhisperer hardware: live waveforms, capture, CPA, glitch sweeps, UART/SPI/JTAG/SWD interfaces, a logic analyser, firmware code on the power trace, notebooks, firmware builds and an MCP server
pypi Apache-2.0 -
Free MCP server for security operations: CVSS 3.1 scoring, IOC extraction and defanging, email header triage, hash and JWT decoding, timestamps, layered decoding, CISA KEV lookup. No account, no telemetry.
MIT -
mcp-devutilsgithub.com/hlteoh37/mcp-devutilsupdated this year
MCP server with 45 developer utilities (16 free + 29 pro). Free: UUID, hash, HMAC, base64, timestamps, JWT decode, random strings, URL encode/decode, JSON format, YAML/JSON convert, regex test, cron explain, color convert, HTTP status, slugify, HTML escap
npm MIT -
Local-first vision-language pipeline inspired by VL-JEPA. Compress images, text, conversations, and RAG documents locally via Ollama before sending to any LLM API. Deterministic, fact-preserving token optimizer plus MCP server, FastAPI server and video processing.
pypi Proprietary -
MCP server: encode and decode International Morse code.
MIT -
MCP server: decode and inspect JSON Web Tokens (JWTs).
MIT -
MCP server: generate and decode ULIDs (sortable, 128-bit identifiers).
MIT -
Castov in your terminal: Model Context Protocol (MCP) server for Claude & Cursor, EADDRINUSE port killer, cryptographic .env secret generator, IPv4 CIDR subnet calculator, local secret scanner, terminal error healer, .cursorrules generator, Unix timestamp
npm MIT -
MCP server: encode and decode RFC 4648 base32 (standard and Crockford).
MIT -
MCP server: encode/decode text in base64, base64url, hex, and percent-encoding.
MIT -
MCP server: encode and decode HTML entities, URL-encoding, and Unicode escapes.
MIT -
@mukundakatta/uuid-mcpgithub.com/mukundakatta/uuid-mcpupdated this year
MCP server: generate, validate, and decode UUID v4 and v7.
npm MIT -
A Rust CLI and MCP server for X.509 certificate analysis, format conversion, and key verification. Reads certificates from PEM files or HTTPS endpoints. Validates TLS connections, checks revocation status, converts between PFX and PEM formats and integrates with AI-powered IDEs via the Model Context Protocol (MCP) and Vault.
NOASSERTION ★ 4 -
mcp-server-devutilsgithub.com/ofershap/mcp-server-devutilsupdated this year
Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex
MIT ★ 4 -
Read-only EUDAMED MCP server: device discovery, economic operators, reference decoding and traceable evidence investigations.
npm MIT -
dev-utils-mcpgithub.com/yifanyifan897645/dev-utils-mcpupdated this year
MCP server with 6 essential developer utilities — UUID, Base64, hashing, JWT decode, JSON diff, regex test. Zero config, zero API keys.
MIT -
EVM calldata decoding, debug trace revert pinpointing, storage slot layout mapping, and reentrancy auditing.
MIT -
Extract every UUID, ULID, NanoID, ObjectId and Snowflake, and decode the time inside.
npm MIT -
mcp-server-devutilsgithub.com/ofershap/mcp-server-devutilsupdated this year
Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex
npm MIT -
vaultbase-mcpgithub.com/AlexeySamosadov/vaultbase-mcpupdated this year
MCP server giving AI agents local encoding tools — base64/hex/url & URL parsing (free), plus JWT-decode & file↔base64 (Pro). Runs locally.
NOASSERTION -
Remote MCP server for AI agents: real-money crypto casino audits, trust scores, rankings and T&C-decoded bonuses from WagerX.io. Endpoint: https://wagerx.io/mcp
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dev-utils-mcpgithub.com/yifanyifan897645/dev-utils-mcpupdated this year
MCP server with 12 essential developer utilities — UUID, Base64, hashing, JWT decode, JSON diff, regex test. Zero config.
npm MIT -
sortiegithub.com/srivtx/sortieupdated this year
Semantic execution debugger for Solana. Reconstructs CPI trees, decodes failures (0x1771 → 'slippage exceeded'), profiles compute. MCP server for AI agents.
MIT -
MCP server for PhishClean security tools — check URLs for phishing, analyse email headers, decode JWTs, scan code for leaked secrets. Works with Claude Desktop, Claude Code, Cursor.
MIT -
@kapilraghuwanshi/dev-tools-mcpgithub.com/kapilraghuwanshi/mcp-serversupdated this year
Zero-config MCP server for developers — encode/decode, hash, UUID, JWT, DNS, IP info, URL tracing, npm lookup and more.
npm MIT -
mcp-http-inspectgithub.com/jeffereychown-Max/mcp-http-inspectupdated this year
5 HTTP/REST debugging tools for Claude: request (safe-by-default), compare responses, inspect CORS, decode JWT from Authorization header, explain status codes. Free, MIT.
MIT -
Shrinks your AI agent's tool output so it burns fewer tokens, without changing what the agent reads. Lossless by default, no decode step.
pypi MIT ★ 3 -
mcp-api-toolsgithub.com/rog0x/mcp-api-toolsupdated this year
MCP server for API testing: HTTP requests, endpoint health checks, JWT decode, URL parsing, security header analysis Install: npx @rog0x/mcp-api-tools
MIT -
A read-only Kubernetes MCP server: list resources, get resource details, retrieve pod logs, discover API resources, and perform base64 encoding/decoding operations - all while maintaining security through read-only access.
npm MIT -
MCP server: medical-billing intelligence for AI agents — prior-auth checks, denial decoding, claim triage, appeal assessments, PHI de-id demo. Pay-per-call via x402 (USDC on Base).
MIT -
MCP server to read and change MikroTik SwOS / SwOS Lite switches (CSS610) live over their web API: field map from the switch's own engine.js, dry-run + confirm writes, .swb decode/diff/restore
MIT -
Production-grade Science of Reading MCP server & Material Design 3 Web App for K-5 literacy analysis, 50-state Standards Satchel alignment, decodability checking, and FERPA-compliant PII anonymization.
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devutils-mcp-servergithub.com/paladini/devutils-mcp-serverupdated this year
MCP server with 36 zero-auth developer utilities: hashing (MD5/SHA/bcrypt), encoding (Base64/hex/URL), UUID/password generation, JWT decoding, JSON/YAML/XML formatting, timestamp conversion, network tools (CIDR, IP, DNS), and text utilities.
npm MIT -
devtoolkit-mcpgithub.com/emtyty/devtoolupdated this year
29 developer utilities as an MCP server — JSON repair, SQL format, hash, encode/decode, UUID, regex, CSV, subnet calc, diagram generation, git diff parsing, DB schema parsing, JSON schema validation, and more. No API keys. Runs locally.
npm MIT -
@cleanor/mcpgithub.com/cleanor-app/cleanor-mcpupdated this year
Cleanor MCP server for AI builders: optimize/convert images, cited storage & image-format data, QR codes, and deterministic dev utilities (hash, uuid, base64, jwt decode, json, color, slugify, count) LLMs get wrong. Run locally over stdio, or use the host
npm MIT -
CyberWareX MCP servers: pay-per-call x402 tools for AI agents (USDC on Base, no API key). Token safety/honeypot oracle, EVM chain data, web access (markdown/screenshot/PDF), wallet safety (tx sim, signature decode, address risk, ABI, URL phishing), speech-to-text.
MIT