"How to connect to a REST API" matching MCP connectors:

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.

Pay-per-call MCP tools via x402 USDC: ZAR prices, data extraction, Python sandbox, SA flights.

AI-agent verifier: verdict committed before the outcome graded against it; /review, /ledger.

Authenticated async Fable 5 Agent agent with status polling and artifact results.

AI access to Quadratic spreadsheets: open files, run Python/SQL, query connected databases.

MCP server for Klever blockchain smart contract development.

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

Precision math engine for AI agents. 203 exact methods. Zero hallucination.

Generate a Flutter app from a JSON spec free; pay only for the compiled APK (USDC on Base).

Provides access to TakeProfit.com's Indie documentation and tooling — a Python-based scripting language for building custom cloud indicators and trading strategies on the TakeProfit platform.

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

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

Build a full backend from Claude Code — boards, data, REST APIs — plus a ready-made admin UI

cdbx MCP server for Experiments, Projects, and sandboxed code execution (Python, Go, C#, Rust).

MCP server for Superserve sandboxes: create, exec, and manage Firecracker microVMs

Confidential AI execution with a post-quantum receipt on every job — verifiable by anyone.

run any ai model. compose agents, stack knowledge, connect tools. one api, pay per run.

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

Deploy serverless TypeScript on Val Town: HTTP vals, cron, SQLite, email, OAuth.