"Web search without requiring an API key" matching MCP connectors:

Code mode (preview): the AI writes a script against a typed foundry.* API and runs it in a sandbox.

Linux microVM sandboxes for AI agents: run commands, files, processes, pause and wake.

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.

Second opinion before an irreversible agent action; signed proofs, free verify, public ledger.

Write, deploy and host small C# web services and sites at a public address.

TaskLiteA

net.tasklite

tasklite.net: hosted backend, REST API and admin for apps built by AI agents

Proves AI-generated Python does what you asked: lint, types, security, sandbox run, exact fixes.

40+ developer tools from Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML, and Microsoft Learn. Docs lookup, code execution, security scanning. Starts at $0.01/call. Get your API key at app.xpay.sh or xpay.tools

Paid pre-execution risk verification for AI agents over MCP and x402.

Run Python code in a secure sandbox without local setup. Declare inline dependencies and execute s…

Anima MCP connects your AI coding assistant directly to Anima Playground. It bridges the gap between PM prototypes and production code.

MCP task execution sandbox. 4 tools for claim→execute→submit lifecycle with idempotent claims, duplicate-safe submissions, content validation, and 7-day execution expiry.

Pay-per-call DNS/TLS truth and npm/PyPI breakage checks via x402. No account or API key.

KodyOAuth

io.github.kentcdodds

Personal assistant MCP server with search, execute, packages, jobs, secrets, and integrations.

Real Linux labs your AI agent deploys, routes and runs, with domains, TLS, DBs and an audit log.

Persistent Linux microVMs for agents: root, internet, sub-second resume and a public URL.

Execute code in 8 programming languages via gVisor-sandboxed Docker containers. Supports Python, JS, TS, Go, Java, C++, C, and Bash.

Create, edit, preview, and build Flutter apps via FlutterGo.AI cloud MCP (OAuth).

Build, run, and inspect iOS apps in disposable hosted Simulators from cloud coding agents.

mcp-serverOAuth

ai.cdbx

Build Apps and run code in 30 languages — sandboxed, with persistent sessions for agent loops.