Spraay x402 MCP Server
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- AlicenseNot gradedqualityFmaintenanceConnects AI agents to 2,800+ APIs via x402 micropayments on Base, enabling automated API calls for $0.01 each without signup or API keys.51 npm2MIT

AgentBIT MCP Serverofficial
AlicenseNot gradedqualityDmaintenanceEnables AI agents to call 50+ pay-per-request tools covering onchain and crypto data, web research, security, compliance screening, business intelligence, and infrastructure checks. Payments settle per call in USDC on Base through the x402 protocol with no accounts, API keys, or subscriptions, and the first call is free for new wallets.MIT- AlicenseNot gradedqualityCmaintenanceEnables AI agents to discover, pay for, and invoke x402-priced services such as document OCR, document analysis, media transcription, remote browser sessions, and receive-only email inboxes using USDC on Base, with no API keys and receipt-backed results.38MIT
- AlicenseNot gradedqualityCmaintenanceEnables AI agents to call pay-per-request AI and web tools—including web-to-Markdown reading, PDF extraction, translation, compliance lookups, domain/email/Solana data, and prediction-market intelligence—without accounts or API keys, settling each call in USDC via x402 on Base, Solana, or Arc.MIT
- FlicenseNot gradedqualityCmaintenanceEnables AI agents to access 25 pay-per-request intelligence APIs using USDC micropayments via the x402 protocol, without API keys or accounts.-
- AlicenseAqualityCmaintenanceTrust layer for AI agents: 22 pay-per-call x402 tools for scam and fraud checks, payment pre-flight, wallet screening, policy approvals, contact extraction and company research. Free preview with no wallet; paid calls settle in USDC on Base.22104 npmMIT
TDQS
Scored across 162 tools
Many tools have overlapping purposes, e.g., multiple tools for balances (spraay_balances, spraay_analytics_wallet, spraay_portfolio_tokens), AI inference (spraay_chat, spraay_gpu_run, spraay_compute_text_inference), and token prices (spraay_prices, spraay_oracle_prices). Agents would struggle to select the correct tool among these overlapping options.
All tools follow the consistent pattern 'spraay_{category}_{action}', with categories like agent, analytics, compute, research, etc. Subcategories use underscores (e.g., spraay_research_biomedical_search). Minor inconsistency: some action parts are nouns (e.g., spraay_free_chain_status) rather than verbs, but overall pattern is clear and predictable.
With 162 tools, this server is extremely bloated for a single MCP server. While the server covers many domains, a typical well-scoped server has 3-15 tools. This scale makes it unwieldy for agents to navigate and likely includes many rarely-used tools.
The server covers an impressively broad range of functionalities: blockchain (balances, swaps, escrow, bridge, payroll, tax), AI (chat, compute, image gen, research), utilities (storage, webhooks, notifications, RPC), and more. Minor gaps exist (e.g., no wallet withdrawal tool), but the surface is remarkably comprehensive for the stated domain.