MCP Server Registry

Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.

Inspect and validate an x402 endpoint before an autonomous agent spends USDC.

Pay-per-call MCP tools (crypto/DeFi data, web reading, AI tasks) in USDC over x402 on Base.

Rug-check & launch radar for trading agents: composite honeypot score, EVM+Solana, keyless x402.

Pay-per-call browser rendering and x402 marketplace ranking for AI agents, billed via USDC.

Pay-per-call NLP & embeddings APIs on Base via x402. No keys/signup; agents pay per call in USDC.

Pay-per-call NLP & embeddings APIs on Base via x402. No keys/signup; agents pay per call in USDC.

Free, read-only MCP subset of x402 Toolbox's cheap data endpoints, free via MCP.

Pay-per-call research tools for AI agents, paid via x402 USDC. Remote MCP, one free tool.

MCP server for no-payment x402 surface triage, 402 Index health checks, and paid review handoff.

Give an agent a wallet. Pays for x402 resources within hard limits. Base + USDC, gasless.

Pay-per-call web & EU business intelligence for AI agents (x402 USDC on Base). 11 tools.

Pay-per-use web extract, token prices, and wallet balances via x402 USDC micropayments.

Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC)

Windows x64dbg/x32dbg debugging with guarded sessions, breakpoints, memory and runtime evidence.

Pay-per-use tool API for AI agents with free tier, x402 USDC micropayments, and API key access.

Pay-per-call tool API for autonomous agents. x402 payments on Base. 27 tools including web search, price feeds, and The Hive shared memory layer.

Pay-per-use tool API for AI agents. Free tier, x402 USDC micropayments, or API key.

⚡ The Complete X/Twitter Automation Toolkit — Scrapers, MCP server for AI agents (Claude/GPT), CLI, browser scripts. No API fees. Open source. Unfollow people who don't follow back. Monitor real-time analytics. Auto follow, like, comment, scrape, without API.

MCP server for Affinity CRM - entity search, relationship intelligence, and workflow management

Query your DevExpress XAF app: entities, controllers, actions, rules, Model Editor.

Unofficial X (Twitter) client + MCP server. Cookie auth, no paid API.

First MCP for the Xahau network — offline Hook WASM VM + static analyzer, read-only ledger tools.

Inspect and drive Avalonia, WPF, WinUI, and .NET MAUI apps through MCP.