kcp-shadowsocks-server

kcp-shadowsocks-server is a server implementation that combines KCP (a UDP-based transport designed to provide reliable, low-latency delivery) with the Shadowsocks proxy protocol, enabling proxying over KCP streams. Typically used to improve throughput/latency versus plain TCP in constrained networks while maintaining the Shadowsocks encryption/proxying model.

Evaluated Apr 04, 2026 (0d ago)

Homepage ↗ Repo ↗ Infrastructure networking proxy shadowsocks kcp udp self-hosted privacy server

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

Security depends on Shadowsocks cryptographic configuration and server hardening (e.g., using strong ciphers/keys, secure config management, limiting exposure at the network layer). Because no repository code/config/log-handling details are provided here, concrete guarantees (TLS, scope controls, secret storage, dependency posture) cannot be verified.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Use Cases

• Running a Shadowsocks proxy server over KCP to improve performance on high-latency or lossy networks
• Building a self-hosted anonymizing/egress proxy for clients that support KCP+Shadowsocks
• Circumventing network throttling/packet loss compared to conventional TCP-based approaches

Not For

• API/service integration in typical agent workflows (it is a network server, not a request/response API)
• Environments requiring formal compliance guarantees without additional auditing/config hardening
• Use cases needing fine-grained, documented admin/auth APIs (unless the project documentation provides them, which is not provided here)

Interface

REST API

GraphQL

gRPC

MCP Server

SDK

Webhooks

Authentication

Methods: Shadowsocks password/secret-based configuration (commonly via a server-side config, e.g., method+password)

OAuth: No Scopes: No

No explicit API-style auth documented in the provided prompt. Assumes standard Shadowsocks server shared-secret authentication configured on the server.

Pricing

Free tier: No

Requires CC: No

Self-hosted open-source/service pricing not determinable from provided information.

Agent Metadata

Pagination

none

Idempotent

False

Retry Guidance

Not documented

Known Gotchas

⚠ This is a network server (UDP-based) rather than an API; agents expecting HTTP/REST tooling will not be able to interact with it directly.
⚠ Correct operation depends heavily on network/firewall/UDP reachability and configuration parameters (ports, congestion control, keys).
⚠ Operational errors are typically surfaced in logs rather than structured API responses.

Alternatives

Shadowsocks-libev/Go server over TCP V2Ray/Xray with KCP transport Trojan-go with suitable transports WireGuard-based VPN solutions where appropriate Other KCP-enabled proxy solutions (e.g., sing-box/v2ray plugins that support KCP)

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Scores are editorial opinions as of 2026-04-04.