Best 402 AI Skills & MCP Servers

L402 Lightning paywall + Depth-of-Identity score gate for MCP. Two integration shapes: (a) stdio MCP server exposing l402_gate_challenge / l402_gate_verify / l402_gate_score for agent clients; (b) drop-in Express middleware + MCP tool factory that combine

MCP server for UtilsForAgents with eight paid x402 utility tools plus one free feedback tool, with Base or Solana payer support.

MCP server alias for @arispay/payagent-mcp. Configure your Claude Desktop / Cursor / Windsurf MCP server as `npx buyforme-mcp` to let the model pay any x402 URL via ArisPay delegated custody.

MCP server for 402 Index — search 15,000+ paid API endpoints across L402, x402, and MPP protocols with real-time health monitoring

22 x402 pay-per-call utility tools for AI agents — scrape, validate, embed, store, moderate, notify, convert, prevent loops. No accounts, no API keys. USDC on Base via the x402 protocol.

Voidly Pay SDK — agent-to-agent payments for AI agents. Sign envelopes, settle transfers, run x402 paywalls, verify webhooks.

The complete TRON infrastructure layer for AI agents. 66 tools, 30 prompts, 21 resources. MCP + A2A + ACP + x402 v2 facilitator.

Model Context Protocol server for the XRPL-Utilities portfolio: Sentinel (wallet classifier), Pulse (signal feed), Telemetry (supply + utility floor), Trust (XLS-70/80/81 directory), Vault (RWA tracker), and Flows (ETF AUM vs XRPL flow correlation). Expos

Generic MCP server for calling x402-protected APIs with automatic payment handling

MCP server for Run402 — AI-native Postgres databases with REST API, auth, storage, and row-level security. Pay with x402 USDC micropayments.

MCP server for ArisPay-delegated x402 USDC payments. Use with Claude Desktop, Cursor, or any MCP client — no private keys in your process.

MCP server for MadeOnSol Solana KOL intelligence API — use from Claude, Cursor, or any MCP client

MCP server for TensorFeed.ai - AI news, service status, model pricing, signed decision verdicts, time series, model comparison, webhook watches, and a discovery tool for the full TensorFeed data catalog, for AI agents

MCP server for PayPerByte — verified, provenance-first data feeds for AI agents. Pay-per-call via x402 settled in USDC on Base mainnet, or subscribe to first-party on-chain streams (Arbitrum Sepolia, audit-gated); every payload carries an EIP-712 PayloadA

Model Context Protocol server exposing the b402 Solana SDK as agent-callable tools (Claude Code, Cursor, any MCP runtime)

Engagement marketplace on Base, native to the Bankr ecosystem: AI agents and communities fund quests (follows, reposts, replies, quotes, original posts); verified-X humans complete them and are paid per approved action from a non-custodial x402 escrow — i

Bitcoin-native MCP server for AI agents: BTC/STX wallets, DeFi yield, sBTC peg, NFTs, and x402 payments.

MCP server for GoldBean - 10 core paid APIs for AI Agents via x402 micropayments. Crypto price, weather, search, image-gen, code, AI chat and more. Pay-per-call with USDC on Base.

First MCP wellness server for HUMANS and AI AGENTS. Pay-per-call wellness micro-content (18 formats × 20 languages × 2 audiences), settled in USDC on Solana via x402.

Pay-per-call MCP server for autonomous AI agents — installs in Claude Desktop / Cursor / Continue with one config block; on-chain settlement on Polygon and Solana via x402.

Shared TypeScript types and x402 payment-flow utilities for @xenarch/agent-mcp — Xenarch's non-custodial x402 MCP server.

Scaffold a Voidly Pay-enabled AI agent in one command. Pick a template (paid MCP server, Hono x402 endpoint, FastAPI x402 endpoint, or zero-code universal proxy) and you're running in under 60 seconds.

MCP server that lets an agent search and scrape the web and pay for it itself — per request in USDC on Base via x402. No API keys.

Dual-rail Lightning paywall middleware for MCP servers. Accepts L402 macaroons (legacy) and x402-bip122-exact payments (forward-compat). One LNBits backend, both rails. v0.2.0 ships the real x402-bip122-exact verifier.