Best Alternatives to Swiftsign MCP

Spotdb

Runtime: npx

Ephemeral data sandbox for AI workflows with guardrails and security

Tenki Sandbox MCP

Runtime: npx

Disposable microVM sandboxes for AI agents: run code, read/write files, git, preview URLs.

LLM Sandbox

Runtime: uvx

Securely run LLM-generated code in isolated containers across 7 languages and 4 backends.

MCP Run Python

Runtime: uvx

Runs Python code in a secure sandbox through MCP tool calls.

Runno

Runtime: npx

Sandboxed runtime for programming languages and WASI binaries. Works in the browser, on your server, or via MCP.

Godot MCP Enhanced

Runtime: npx

Enhanced Godot 4.5-4.7 MCP: headless+editor+bridge, secure GDScript sandbox, closed-loop AI dev.

Ramp Kit

Runtime: npx

LATAM fiat ramps on Stellar for AI agents: live quotes, sandbox orders, PIX/SPEI simulation, docs

Tokenized Stock

Runtime: npx

Buy/sell tokenized US stocks (Dinari dShares) in USDC. Daily USD cap guard. Sandbox default.

Secure Python sandbox — MCP servers, APIs, shells and host functions as native Python objects.

Node Code Sandbox MCP

Runtime: Remote (SSE)

Runs JavaScript in temporary Docker sandboxes with npm installs, command execution, output capture, and optional detached processes.

Eterna MCP

Runtime: Remote (SSE)

No-KYC managed MCP for AI agents: sandboxed TypeScript trading SDK, isolated sub-accounts, futures.

ZKshare

Runtime: npx

ZKshare stdio MCP: store/prove/share, semantic search, sandbox proxy to HTTPS /api/v1/context.