"Tools for visualizing NetworkX graphs without an API key" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Run Python, Java, C, C++, C#, Go, Rust and 39 more languages, each run in a fresh, offline sandbox.
Cloud Macs with Xcode for AI agents: run commands, build and test iOS apps, see and use the screen.
Agent utilities: read big pages without filling context, exact math, dates, parsing. Free.
Linux microVM sandboxes for AI agents: run commands, files, processes, pause and wake.
Hosted MCP for Celesto cloud computers. Create, start/stop, exec, publish ports, and delete hardware-isolated sandboxes over OAuth.
Run sandboxed Python for calculations and PDFs; no other languages, installs or network.
Spin up a complete OpenCode development environment on any Linux box — one agent-driven workflow, six tools, zero secrets.
Code mode (preview): the AI writes a script against a typed foundry.* API and runs it in a sandbox.
Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.
Proves AI-generated Python does what you asked: lint, types, security, sandbox run, exact fixes.
Precision math engine for AI agents. 203 exact methods. Zero hallucination.
Proof and repair for Apple coding agents: validate Swift, run Xcode evidence, and repair failures.
A neutral index of cloud sandboxes for AI agents.
A deterministic verification engine for agents. Proves a fix: fails on the old code, passes on new.
Second opinion before an irreversible agent action; signed proofs, free verify, public ledger.
tasklite.net: hosted backend, REST API and admin for apps built by AI agents
Create and preview self-contained web apps in iPhone, Duo, iPad, or Headless views. Seven starter tools and games, browser-local code saving, and HTML export. Free; no API key. Tools: open_ipadian, preview_app. Interactive previews require MCP Apps support. Independent web simulator; no native iOS apps or cloud sync. Setup and Claude/Codex downloads: https://os.ipadian.net/plugin/
Hand routine JS/TS tasks to Codemind from your agent. $0.10 per verified build; failures are free.
Hosted Python sandbox for package runtime verification: pip install and usable-import evidence.
38 MCP tools: Rust computation, Discovery, composition, counterexample scans and signed checks.
