"OpenAI's Web Retrieval Infrastructure" 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.

AI agent tools: crypto token safety, web search with cited answers, live library docs. Free trial.

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

Crypto intel for AI agents: token scans, SWOGE AI colony data, OSINT, web search, images, video

Paid Base USDC tools for agent security, routing, web data, claim evidence, and crypto intelligence.

Pay-per-call AI infrastructure for autonomous agents: DeFi market data, LLM inference, speech-to-text, text-to-speech, and trading research. x402 v2 pricing published before every call and settled in USDC on Base via the Coinbase CDP facilitator. No API key, no account, no subscription.

x402 MCP web parser: URLs to Markdown for agents. USDC on Base, Polygon, Arbitrum, Ethereum.

Lets AI agents autonomously pay for and call L402-protected APIs in Bitcoin Lightning. 12 tools across two layers: l402_fetch / l402_balance / l402_set_budget / l402_spending_report (generic L402 client) + 11 VERITY paid services (BTC price, web search, scrape, AI summarize/sentiment/translate, world state, domain intel, deep research, strategic alpha, integration). Sub-second settlement, no API keys, no chargebacks.

Indicative pricing, coverage and stack design for high-risk and crypto payment infrastructure.

54+ pay-per-use AI & data tools for agents, payable in USDC via x402 on Solana — no API keys, no subscriptions. AI image, video, music and voice generation (cheaper than official APIs), web search, cited research reports, Claude Opus Q&A, crypto prices, page scraping, domain info and more. Pay only for what you call, straight from the agent wallet. Free directory tool lists all live endpoints.

Production MCP Suite of 10 Autonomous Security, KYA, Web Extraction & Intelligence Tools with x402 Micropayment Settlement on Base and Solana. Get Top 10 most common in-demand services at lowest prices: audit_smart_contract, check_kya_risk, generate_code_patch, extract_web_markdown, check_token_honeypot, stream_intent_feed, scan_yield_spread, simulate_dao_proposal, analyze_social_momentum, optimize_gas_routing

38 x402 pay-per-call tools for AI agents (USDC/USDT on Base): web, crypto, on-chain, geo, packages

22 MCP tools for Caribbean structured data — solar energy (ZNI), biodiversity, fishing, agriculture, land, tourism, trade, water infrastructure, SME profiles. Payments via x402 protocol (USDC on Base network).

Browse, verify and buy Twelve Permissions NFTs on XRP Ledger. Every claim is checkable.

x402 MCP get-paid path: USDC, spend caps, AUP, $49 kit. CAPTCHA/web-unlock for payment-ready agents.

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

x402 paid APIs for AI agents on Base. Blockchain, wallet, DEX, crypto, web search.

Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.

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

30 pay-per-call APIs for AI agents: compliance, trade, safety, web, data. USDC on Base via x402.