PyPI · crates.io · npm99Exceptionalhealth index
IBM/mcp-context-forgeAn AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and management. Optimizes Agent & Tool calling, and supports plugins.
Python★ 4,178Aug 3, 2026
npm · PyPI · crates.io +298Exceptionalhealth index

github/copilot-sdkMulti-platform SDK for integrating GitHub Copilot Agent into apps and services
Java · Rust · TypeScript★ 10.4K↓ 6.4M/moAug 22, 2026
npm94Exceptionalhealth index
TypeScript★ 56↓ 766.6K/moSep 5, 2026
NuGet92Excellenthealth index
Microsoft/vs-streamjsonrpcThe StreamJsonRpc library offers JSON-RPC 2.0 over any .NET Stream, WebSocket, or Pipe. With bonus support for request cancellation, client proxy generation, and more.
C#★ 931Jul 16, 2026
PyPI91Excellenthealth index
Python★ 167↓ 595.9K/moAug 1, 2026
crates.io · Maven88Excellenthealth index

AsamK/signal-clisignal-cli provides an unofficial commandline, JSON-RPC and dbus interface for the Signal messenger.
Java★ 4,887Aug 28, 2026
RubyGems80Excellenthealth index
Ruby★ 117Aug 5, 2026
crates.io78Goodhealth index
Rust★ 8↓ 4,407/moJul 24, 2026
Packagist · npm78Goodhealth index
playwright-php/playwrightPlaywright PHP library for browser automation: navigation, E2E tests, assertions, screenshots, and so much more!
PHP★ 204↓ 12.7K/moJul 18, 2026
Go · PyPI78Goodhealth index

schubydoo/claustrumA tiny, dependency-light Go daemon that hosts a remote Claude Code session over SSH: CLI-version manager + process supervisor + JSON-RPC multiplexer (with a replay buffer) over an AF_UNIX socket. Clean-room, cross-platform, no telemetry.
Go★ 1Aug 22, 2026
tylerjrbuell/reactive-agents-tsA composable framework for building reliable LLM agents on a harness you fully control. The same code runs the agentic loop on every model tier, local 4B to frontier with tool-call healing, verification, and durable crash-resume, on a typed 12-phase engine where every step emits an event you can hook into. Effect-TS, MCP-native, MIT
TypeScript★ 19↓ 11K/moJul 30, 2026
crates.io77Goodhealth index
Rust★ 92↓ 11.5K/moJul 31, 2026
GopherSecurity/gopher-mcpMCP C++ SDK - Model Context Protocol implementation in CPP with enterprise-grade security, observability and connectivity.
C++ · C#★ 123Jul 17, 2026

Nekzus/npm-sentinel-mcpA powerful Model Context Protocol (MCP) server that revolutionizes NPM package analysis through AI.
TypeScript★ 18↓ 4,440/moSep 6, 2026
crates.io · npm75Goodhealth index
meteora-pro/devboy-toolsConfigurable tool bundle for AI coding agents — use via MCP server, CLI, or agent skills. npm wrapper for the Rust binary.
Rust★ 13↓ 5,114/moJul 25, 2026
TypeScript★ 257↓ 12.4K/moJul 27, 2026
crates.io · npm71Goodhealth index
holon-run/uxcA unified CLI for discovering and invoking tools across OpenAPI, MCP, GraphQL, gRPC, and JSON-RPC
Rust★ 111↓ 73/moJul 27, 2026
Python · HTML★ 5↓ 8,676/moAug 2, 2026
npm · crates.io69Goodhealth index
Rust · JavaScript★ 13↓ 849/moJul 17, 2026

callibrity/mocapiAn enterprise-grade Spring Boot framework for stateless Model Context Protocol (MCP) servers in Java (MCP 2026-07-28). OAuth2 resource server, per-handler authorization, OpenTelemetry, Jakarta Validation, audit logging, GraalVM native-image — all opt-in via a one-dependency feature-module pattern.
Java★ 2Aug 26, 2026
crates.io65Goodhealth index

nimiq/jsonrpcRust implementation of a JSON-RPC client and server.
Rust★ 12↓ 8,526/moAug 19, 2026
Go★ 6Jul 18, 2026
Go · npm · RubyGems60Moderatehealth index
Go · TypeScript★ 0Jul 16, 2026
npm60Moderatehealth index
TypeScript★ 0↓ 30.5K/moJul 19, 2026
npm60Moderatehealth index
TypeScript★ 1↓ 37.2K/moAug 3, 2026
Hex59Moderatehealth index
Elixir★ 394↓ 6,239/moJul 17, 2026
crates.io56Moderatehealth index
Rust★ 2↓ 5,133/moSep 6, 2026
crates.io · npm53Moderatehealth index

chatmail/yerpcAn ergonomic JSON-RPC server library in Rust with autocreated TypeScript client and OpenRPC specification
Rust★ 50Sep 3, 2026
Go★ 3Jul 19, 2026
PyPI51Moderatehealth index
mbr/tinyrpcA compact, modular transport and protocol agnostic RPC library. Does jsonrpc v2.
Python★ 160Jul 21, 2026