"Kotlin RAG (Retrieval-Augmented Generation) implementation resources" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
x402 layer for AI agents: 35 pay-per-call resources, x402 service discovery, USDG/USDC.
Free US moving quotes for AI agents (long-distance nationwide, local DC/MD/VA). Optional x402 quote.
Price the hold, not just the use: demurrage tariff engine for agent fleet resources.
The first commercial implementation of HTTP 402 Payment Required for creator content monetization. AI agents pay $0.0025 per content pull from paywalled creator libraries. Patent-pending micropayment infrastructure — creators get paid automatically.
ManaBuy MCP Server is a stdio-based Model Context Protocol server for integrating ManaBuy product and order APIs with MCP clients. It exposes tools for product search, product detail retrieval, SKU and order-field inspection, order quotation, authenticated order creation, order status lookup, and order detail retrieval, with explicit confirmation required before any order-creation workflow.
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.
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.
Free invoice drafts, templates and direct PDF generation for AI agents. No account needed.
Put any API behind x402 in one call, settle USDC on Base, buy credits, find paid resources
Open, permissionless discovery marketplace for x402-payable resources. No account or KYC required.
Hubris is an OpenAI-compatible LLM gateway for the Russian market, billed in rubles. This MCP server gives agents access to the model catalog (400+ models with ruble pricing), account balance, and chat completions with full parity to POST /v1/chat/completions. Tools: models_list, models_search (filter by capability/price/context length), models_get_pricing, balance_get, chat_complete. Resources: hubris://catalog/models, hubris://docs/quickstart. Prompt: compare-models. Docs: https://hubris.pw/
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.
99-cent text pressure tests with human-confirmed checkout and paid-result retrieval.
Italian e-invoicing (FatturaPA/SdI), Peppol, KSeF, ZUGFeRD, and PDF invoice generation via POP
Pay-per-call web reader (Markdown/RAG chunks) and agent utilities; x402 USDC on Base.
