MCP Servers Directory — Page 891

Pre-payment merchant trust checks for x402 agents on Base and Solana.

x402 HTTP 402 + MCP paywall: charge USDC per agent call. Self-host via npx or Docker.

47 MCP tools free (rate-limited) + x402 pay-per-call REST on Base. Flagship: Token Verdict, $0.02.

Pay-per-call web extraction: clean text, metadata, links, JSON-LD, change detection. USDC on Base.

Machine-payable prediction-market briefs and probability-change monitoring for AI agents.

Pay-per-call OSINT for AI agents: username + email recon in USDC on Base via x402.

MCP server for the x402 protocol. Lets AI agents (Claude, Cursor, etc.) discover and call payment-gated HTTP APIs automatically.

Authorize x402 payments before signing with request-bound, signed safety decisions.

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.

34 data tools: Polymarket skill, FDA and hospitals, oil, attention, travel, SEC filings

Record x402 agent purchases as reconciled, auditable receipts; verify any receipt on the ledger.

Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli

Free MCP server: compute a GitHub repo maintenance/abandonment health score from live data.

x402 Endpoint Scanner — a free local health probe for x402 paid endpoints as an MCP server.

Autonomous HTTP 402 Web Scraping Mesh on Base for $0.02 USDC.

Programmatic web-scraping MCP server powered by x402 micro-transactions on Base.

Search 13,000+ x402-enabled HTTP APIs from Python AI agents. Powered by x402search.xyz

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.

The only x402 MCP server for Robinhood Chain (chainId 4663) - 147 onchain, trading & AI tools.

Public demo: evaluate AI-agent payment authorization and approval policy. No signing, no settlement.

Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.

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

x402 paid API tools for AI agents on Solana: crypto safety, market data, KYB/AML verification.

x402station.io: independent risk-signal layer for x402 endpoints before agents pay.

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.

61 x402 pay-per-call tools that chain: each answer names the next call. No API key, no account.

10 pay-per-call tools for AI agents: QR, screenshots, DNS, OCR, PDF, email & more. USDC on Base.

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

melis x402 Tools — 22 pay-per-call APIs for AI agents. No accounts, no API keys. USDC on Base.

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.

An MCP server that lets your agent check the trust & reliability of x402 endpoints before paying them.

Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.

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

Pay-per-call AI video generation over x402 (USDC on Base). No accounts, no API keys.

Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key.

Wash-filtered intelligence for x402: categories, services, wash analysis, trends.

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)

X4: Foundations scripts: checks, schema elements, expression types, scripts, cues and texts.

x64dbg-MCP Server is a native MCP (Model Context Protocol) plugin for x64dbg that exposes the debugger's full functionality over HTTP. Connect any MCP-compatible AI assistant and control x64dbg…

MCP server for x64dbg debugger - 23 mega-tools for AI-powered reverse engineering and debugging

The plugin acts as a lightweight HTTP interface bridge between an MCP client and the debugger, allowing you to have an LLM MCP client interactively send commands to inspect memory, disassemble…

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

An MCP server that can bridge various LLMS (Claude and Cursor tested) with the x64dbg debugger, providing direct access to debugging applications

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

XActions - The Complete X/Twitter Automation Toolkit. Scrapers, MCP server for AI agents, CLI, and browser scripts. No API required. Open source by

No API key. No account. No browser. Real data in about a second.

Read campaigns and performance, inspect targeting and prepare changes for explicitly selected accounts.

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

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

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

Evidence before delegation. Wrap an agent's tool calls once; use the receipt history locally today, and share the same signed receipts later as portable, independently verifiable evidence.

XAIP is a provider-neutral signed execution evidence layer for AI agent tool calls. It records co-signed receipts — both the executing agent and the

Score, optimize, and generate tweets using the actual signal weights from X's open-source recommendation algorithm.

This toolkit reverse-engineers X's recommendation algorithm from the [open-source codebase](https://github.com/twitter/the-algorithm) and gives you: