Dev tools · alternatives · 2026
24 alternatives to ProtoMCP
Postman-style playground for Model Context Protocol servers
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1
MCP Playground▲160MCP Playground is a Postman-style tool for MCP — inspect servers, execute tools live, test your client, all from the browser. Four things in one place: 1. Free hosted MCP servers — four public test servers anyone can point their client at: Echo (connectivity), Auth (Bearer token flow), Error (error handling), Complex (multi-tool schemas).No sign-up, just use the URL. 2. Server inspector — paste any remote MCP server URL, see all its tools/resources/prompts, execute them live, inspect the full JSON-RPC log. HTTP, SSE, and WebSocket all supported. 3. Registry — 10,000+ servers…
Nov 2025 · mcpplayground.io · its alternatives →
- 2
Hey HN, I built pg-mcp, a Model Context Protocol (MCP) server for PostgreSQL that provides structured schema inspection and query execution for LLMs and agents. It's multi-tenant and runs over HTTP/SSE (not stdio) Features - Supports multiple database connections from multiple agents - Schema Introspection: Returns table structures, types, indexes and constraints; enriched with descriptions from pg_catalog. (for well documented databases) - Read-Only Queries: Controlled execution of queries via MCP. - EXPLAIN Tool: Helps smart agents optimize queries before execution. - Extension…
2025 · github.com · its alternatives →
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- 4CN
2013 · kentonv.github.com · its alternatives →
- 5
SpecToMCP▲19Generate MCP servers from OpenAPI specification files
2025 · spectomcp.updab.com · its alternatives →
- 6
Simple, fast way to find and try any MCP server. No setup.
Feb 2026 · its alternatives →
- 7
FastMCP 3.0▲205The fast, Pythonic way to build MCP servers and clients
Jan 2026 · gofastmcp.com · its alternatives →
- 8
Directory of MCPs (Model Context Protocol)
2025 · findmcpservers.com · its alternatives →
- 9
A universal CLI client for MCP. mcpc supports persistent sessions, stdio/HTTP, OAuth 2.1, tasks, JSON output for code mode, proxy for AI sandboxes, x402, and more. - apify/mcpc
Jan 2026 · github.com · its alternatives →
- 10
A visual debugger and test client for Model Context Protocol (MCP) servers. Debug, test tools, and inspect JSON-RPC traffic in real time.
Jan 2026 · mcp-workbench.ai · its alternatives →
- 11
Docs2mcp▲29Turn any API documentation into a simple hosted MCP server.
2025 · docs2mcp.com · its alternatives →
- 12
A comprehensive Model Context Protocol (MCP) server implementing the latest specification. - hemanth/paws-on-mcp
2025 · github.com · its alternatives →
- 13
An ultra-fast, single-binary MCP server written in Rust as a lightweight alternative to Node.js/Python. - StamManif/mcp-stama
Aug 2026 · github.com · its alternatives →
- 14
This is an open‑source Model Context Protocol (MCP) server that gives any LLM a sense of the passage of time. Most MCP demos wire LLMs to external data stores. That’s useful, but MCP is also a chance to give models perception — extra senses beyond the prompt text. Six functions (`current_datetime`, `time_difference`, `timestamp_context`, etc.) give Claude/GPT real temporal awareness: It can spot pauses, reason about rhythms, and even label a chat’s “three‑act structure”. Runs locally in <60 s (Python) or via a hosted demo. If time works, what else could we surface? - Location /…
2025 · github.com · its alternatives →
- 15
protoCURL is cURL for Protobuf: The command-line tool for interacting with Protobuf over HTTP REST endpoints using human-readable text formats - qaware/protocurl
2023 · github.com · its alternatives →
- 16
Network protocol emulator and testing tool
2017 · vprotostack.com · its alternatives →
- 17
Proto Client▲57Read proto files and send gRPC requests though an easy GUI
2022 · apps.apple.com · its alternatives →
- 18
HasMCPfree tier▲6No-code GUI MCP Server Framework with built-in Auth & Logs
Jan 2026 · hasmcp.com · its alternatives →
- 19MG
Hey HN, Sagiv from liblab is here. We've been deep in the world of API tooling for years at liblab, primarily focusing on generating SDKs and documentation from OpenAPI specs. Recently, we kept running into a recurring frustration: connecting AI tools to existing APIs is way more complex than it should be. You start with a simple goal – let an LLM talk to your API – and suddenly you're neck-deep in spinning up infrastructure, wrestling with authentication, and writing a ton of custom glue code just to translate natural language into structured API calls. Then you have to maintain it all. To…
2025 · mcp.liblab.com · its alternatives →
- 20OS
Large Language Models (LLMs) are powerful, but they’re limited by fixed context windows and outdated knowledge. What if your AI could access live search, structured data extraction, OCR, and more—all through a standardized interface? We built the JigsawStack MCP Server, an open-source implementation of the Model Context Protocol (MCP) that lets any AI model call external tools effortlessly. Here’s what it unlocks: - Web Search & Scraping: Fetch live information and extract structured data from web pages. - OCR & Structured Data Extraction: Process images, receipts, invoices, and handwritten…
2025 · its alternatives →
- 21
MCP Cloud▲52Deploy Model Context Protocol (MCP) servers with ease. Scale your AI models seamlessly with our cutting-edge platform.
2025 · mcp-cloud.ai · its alternatives →
- 22
ContextGuard▲12I built ContextGuard after discovering that 43% of MCP servers have critical security vulnerabilities. MCP (Model Context Protocol) is the new standard that lets Claude Clients(Desktop, Windsurf, Cursor, etc.) access external tools and data sources - think of it as a plugin system for AI assistants. The problem: When you give those clients access to your filesystem, databases, or APIs through MCP servers, you're opening up serious attack vectors. Prompt injection, data leakage, and path traversal attacks are all possible. Most developers building MCP servers don't have security expertise,…
2025 · github.com · its alternatives →
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Async transport layers for MCP. Contribute to bh-rat/asyncmcp development by creating an account on GitHub.
2025 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →