"Kotlin RAG (Retrieval-Augmented Generation) implementation resources" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Add pay-per-action access to APIs, MCP tools, automations, and digital resources using Bitcoin Lightning L402 or Base USDC x402. AIPP provides payment verification and direct-to-wallet settlement without subscriptions.
Inspect Arc/Base original and wrapped token mappings, outstanding wrapped supply, and ownerless CTS bridge verification through MCP. Discovery and resources are free; lookup calls cost 0.007 USDC on Arc through x402. This MCP endpoint provides lookup only. Bridge setup and resumable transfer workflows are available separately through our CTS Bridge API. Documentation: https://argosbot.io/x402
TRON blockchain: accounts, TRC20 tokens, staking, contracts, resources and transaction builders
Verify and settle x402 stablecoin payments; browse the PayAI Bazaar of x402-payable resources.
Pay x402 resources on U.CASH from your own wallet: view the price, pay on-chain, settle by hash.
Korean crypto × AI media MCP — channel stance, daily briefs, RAG, canonical store, AI personas.
TRON energy exchange for AI agents. 54 tools, 30 prompts, 21 resources. A2A + ACP.
Live and historical Polymarket prediction-market orderbook data — plus Hyperliquid perpetual-futures orderbooks — for any MCP-capable AI agent. 12 tools and 2 resources covering market discovery, live order books, time-series snapshots, multi-day summaries, and pipeline health. Tier-aware: the same endpoint serves free (BTC, 24h history) through Enterprise (all categories, unlimited history) automatically based on the API key.
OpenSpender gives your agent an allowance, not your API keys: one self-custodial USDC wallet that pays per request for web search, frontier models (Claude, GPT, Gemini, Grok), image and video generation, and a growing catalog of x402/MPP machine-payable APIs — every call priced before it's paid and capped by budgets you set.
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.
Pay-per-call agent tools over x402: site audits, llms.txt generation, wallet watch, catalog.
