"Construct 3" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Processor fees, charge-to-net, invoice totals and proration. 3 of 6 tools free.
SimFuse is a travel eSIM storefront covering 200+ countries and regions. This connector lets an AI assistant plan a trip, compare live prices and open a checkout for eSIM data. Browsing needs no authentication. What it does: - plan-trip: give the stops (country code and days in each) and it compares one plan covering the whole route against one plan per country against a mix, on live prices, then flags the cheapest complete option and lists any country it cannot cover. - list-destinations: search every country and region SimFuse sells for, with the cheapest plan price per destination. - list-plans and get-plan: browse a destination's plan ladder, filter by data amount, validity and price, and inspect a single plan in detail. - get-plan-coverage: check every country a plan works in before buying. - create-checkout-session: open a checkout for the selected plans at frozen prices. Nothing is charged by that call; payment, completion and cancellation happen over the agentic HTTP API with the returned key. Good to know: prices come back in minor units of the currency you ask for, data allowances are in megabytes, and quotes are offers rather than reservations, so the charged total is computed at checkout. Operated by Qorinx OÜ. Buy directly at https://simfuse.app, agent documentation at https://simfuse.app/agent/.
Peppol e-invoicing API for developers. Without an account: plan your integration, search the docs, check a test invoice against the Peppol rules and look up a Peppol receiver. With a free account: send sandbox test invoices and follow their delivery. Sandbox only.
Read e-Boekhouden relations, invoices, ledgers, bookings and products; create relations, invoices.
Validate Factur-X, CII & UBL e-invoices free, no key. Generate compliant invoices from JSON.
Library (L402, x402, Lightning, stablecoins): 18 read-only tools plus 3 writers.
UK 3D printing quotes for your files or Printables models, mail-in repair prices and order status.
Agents pay one real human for typed answers. First question free, then $2 each, or subscribe.
Free x402 Lint and Seller Index top 3; paid Security Check, Quote Check and stablecoin tools.
Create ZUGFeRD e-invoices from JSON or PDF, verify Factur-X, check VAT IDs and Peppol.
Travel eSIM for 200+ countries: search destinations, list plans with prices, compare providers and create an order the user pays by link. No sign-in required.
28 agent tools via x402: crypto data, tx checks, web fetch. MCP pays Base USDC; HTTP adds 3 rails.
Reads and validates any European e-invoice a business receives — XRechnung, UBL, CII, ZUGFeRD/Factur-X PDF, Peppol BIS 3, FatturaPA, KSeF FA(3) — into canonical EN 16931 JSON with plain-language fix hints in EN/DE/PL/IT/FR, plus PDF, CSV and DATEV export. Nothing is stored; works without a key on a small daily quota.
x402 provider rankings + Ed25519-signed payment receipts + signature verification (3 tools).
Cited company background reports for agents from official registries. $3 per report via x402.
Issue Brazilian service invoices (NFS-e) via Emissor Nacional, no digital certificate
Camiseta personalizada a partir de 1 peça: catálogo, preço com frete e compra via Mercado Pago.
Real 3D-print slicing, quoting, DFM, orientation & material/settings advisors. Free personal tier.
Reconcile declared stablecoin invoices and transfers; flag partial, pending and mismatched payments.
Validate, parse and render EU e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS 3.0, KSeF.
