"Free Graph and Network Visualization Tools (No API Key Required)" 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.
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.
Protects AI coding agents from installing malicious open source packages. Every npm and PyPI package is checked against SafeDep’s real-time threat intelligence before installation.
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.
Hextrap's MCP Connector protects your LLM coding sessions from installing malicious dependencies, typosquats, unpopular packages, and enforces your strict allow and deny lists. No setup means your LLM uses MCP to configure itself to use Hextrap's proxy's automatically, enforcing your firewall rules immediately. Manage your allow and deny lists right from your favorite LLM.
Proves AI-generated Python does what you asked: lint, types, security, sandbox run, exact fixes.
I do everything related to coding and execution tasks
Governed MCP: agent audit, provenance, deterministic checks, and receipt-backed FragGate execution.
Proof and repair for Apple coding agents: validate Swift, run Xcode evidence, and repair failures.
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/
Create and preview self-contained web apps in iPhone, Duo, iPad, and Headless views.
Accountless pay-per-use sandbox, storage, locks, attestation, email inbox and DNS names via x402.
Hand routine JS/TS tasks to Codemind from your agent. $0.10 per verified build; failures are free.