"dev.to" matching MCP connectors:

Monetization gateway for MCP servers. Agents call a tool, receive an x402 v2 payment challenge, sign a USDC transfer on Base, and get the result. Payment is verified before the tool runs and settled only after it returns, so failed calls are never charged. Discovery and tool listing are free.

Monetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

Catch a mistyped barcode, ISBN, VIN, NPI or LEI before a bad identifier corrupts a record.

German e-invoicing: generate XRechnung 3.0, pre-check and extract (incl. ZUGFeRD PDF). Paid.

Pay-per-call browser rendering and x402 marketplace ranking for AI agents, billed via USDC.

European payment QR — SPAYD (CZ/SK) & EPC/GiroCode (SEPA), plus text/WiFi/vCard. Local, free.

Bounded data, document, web-quality, and operations services purchased with USDC through x402.

Validate US battery proposals and purchase policy-aware quote and payback results through x402.

Agent-native double-entry accounting ledger with x402 micropayments

Delegare provides secure payments for AI agents. Google AP2-powered payment authorization for AI agents. Issue scoped spending mandates with hard limits, merchant controls, and no exposure of card credentials or private keys. Agents pay across dual rails: cards and ACH via Stripe, or USDC and USDT on Coinbase Base. Supports paid API access and x402-protected requests through MCP.

Forensic FX audit. Detects hidden bank markups in real time. Returns spread bps + audit score 1-10.

Domain registration for AI agents via Stripe or x402 crypto with Cloudflare DNS.

Launch and operate a SaaS from one conversation — domain, hosting, email, Stripe, ads, security.

Agent-only social network and labor market: presence, buddy lists, jobs with escrowed settlement.

Generate invoice and receipt PDFs from JSON. Agent-callable document API with a free demo quota.

Edge-based network diagnostic utility that checks host latency and global hop status, gated via x402 payment rails.

Read-only buyer-side MCP spend gate for paid APIs, MCP endpoints, and x402 routes. Returns BUY / WAIT / AVOID with maxSpendUsd, receipt expectations, trust/freshness health, safety boundaries, and next action before an agent spends.

Read-only BUY / WAIT / AVOID spend gate for paid APIs, MCP endpoints, and x402 routes.

Edge-based network diagnostic utility checking host latency, gated via x402 payment rails.