"Kit" matching MCP servers:

Enables AI agents to obtain signed quotes and buy one-year domain registrations on fixed-markup seller rails, paying per-order in USDC via x402, then manage DNS records and order status through signed capabilities. It also exposes a buyer-side connector that attaches an owned domain to a pinned Vercel project.

Enables developers and AI agents to check, price, pay for, and follow paid work on a network of AI agents over stdio or streamable HTTP, exposing eight tools where only ordering can spend and only behind four safety gates. Without a wallet key every tool stays free and ordering returns a dry run, so an agent can inspect plans and prices before any payment is signed.

Enables HTTP 402 payment protocol interactions on Stellar, allowing payment intent probing, guarded paid fetches, and budget status queries.

Enables AI coding agents to add stablecoin checkout, payment links, payment status checks, webhook verification, and webhook-based access logic to applications.

Enables AI coding agents to register a Yolfi workspace, create crypto paylinks and hosted checkout, poll payment status, and configure or verify signed webhooks so applications can accept stablecoin payments. Provides these payment workflows over stdio through JSON-first tools, alongside a CLI and SDK.

Tenant-bound MCP server for agent spend authorization, policy guardrails, evidence, escrow settlement, and portable receipts. Works with Cursor and Claude Code via stdio; npm (@paybond/kit) and Python (paybond-kit).

Lets AI agents buy Bacon Services image operations (remove background, optimize for the web, colour palette, brand kit from a URL) per call in USDC on Base over x402, paid from the user's own wallet with local spending limits.

Yolfi Agent Kit for AI coding agents: receive crypto, SaaS payment, stablecoin checkout, payment links, payment status checks, webhook verification, and webhook-based access logic to applications through Yolfi

Model Context Protocol (MCP) server for Italian Electronic Invoicing (FatturaPA / SDI). Provide tools to validate, generate, and explore API specifications for Sistema di Interscambio (SDI) interoperability.

Enables agents to hold a local Base USDC wallet, receive funds, make bounded x402 payments, prepare seller registration, and recover Voidpay Marketplace results over stdio.

Paybond Kit for Python is the PyPI package for tenant-bound Paybond integrations and delegated agent spend controls. It opens hosted Gateway sessions, verifies capability tokens, authorizes tool-call spend, signs intent and evidence payloads, uses Stripe Connect, Stripe ACH Direct Debit, or x402 / USDC-on-Base settlement rails, reads tenant-scoped Signal, fraud, ledger, protocol, and A2A data, and

Open-source sample MCP server built to be audited: ships a paid-tool x402 demo, a deliberately scannable surface, and documented security posture. From Payload, makers of the MCP Launch Readiness Audit (48-rule scanner with a fix for every finding, hardening templates, stress-test harness, readiness verifier, CI workflow, branded audit report) and the MCP Monetization Kit.

Enables AI buyers and sellers to interact with the Accessura encrypted-data marketplace, supporting bidding, settlement, x402 payments, claim decryption, and seller payout management.

Enables AI clients to read and modify Settle Up group finances — listing groups, checking who owes whom, searching transactions, and recording, editing or deleting shared expenses and debt-settling transfers. Authenticates with Settle Up email and password credentials, with group and member creation optionally unlocked by an extra environment flag.

Enables LLMs to query Kite Passport user info, sessions, wallet balance, and backend health via read-only MCP tools.

An MCP server for the Pluggy Open Finance Brazil API, enabling connection to bank accounts and management of financial data including transactions, accounts, investments, and payment intents through natural language.

A stateless, anonymous MCP edge node exposing three paid JSON-RPC tools on Cloudflare Workers: digital-asset rights pre-check, C2C lead sniffing, and portfolio valuation. Requests are metered per call through an x402 testnet paywall (Base Sepolia / Polygon Amoy) with no IP, user-agent, or persistent storage.

Enables AI assistants to search products, manage a cart, and place orders with Yandex Lavka, requiring explicit human confirmation before charging.