"Free PostgreSQL Database Solutions" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Generate and validate Factur-X, CII & UBL invoices. Free demo; 10-operation account trial.
Agent-native helpdesk. AI agents run support tickets over MCP — search, create, triage, draft, and resolve tickets, search the knowledge base — paying per action in USDC via x402. Read tools are free; priced tools return HTTP 402 with payment terms.
Buy private git repos and agent skills with USDC over x402. Read the manifest free, then pay.
Generate structurally valid test IBANs for 91 countries (MOD-97 and national check digits), validate any IBAN and export lists. Free, no sign-up.
Signed declarations of agent execution steps for verifiable handoffs. Free preparation and verification; receipt issuance costs 0.002 USDC via x402 on Base. MCP, REST and A2A. Connect: https://datoka.dev/agent. Signatures do not independently verify execution.
Processor fees, charge-to-net, invoice totals and proration. 3 of 6 tools free.
Signed declarations of HTTP API exchanges for agent handoffs. Free preparation and verification; receipt issuance costs 0.002 USDC via x402 on Base. Start and connect: https://datoka.dev/api. Signatures attest declared data, not independent truth.
See your vet clinic's free slots, vets, service prices, payments and how busy each day is.
Short essays and fragments. Free for humans; machines pay pennies per read via x402.
Monitor public Shopify stores: free snapshot, paid change intel, competitor reports via x402 USDC.
See your salon's free slots, appointments, stylists, services, clients, quotes and payments.
Track App Store apps: free snapshot, paid review & sentiment intel via x402 USDC.
Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.
[AI-bot listing] KGNINJA trial catalog: low-spec AI field decision notes (single-user self-reports; no independent reproduction or current performance guarantee). Free sample OMARCHY-03 via get_experience_case or GET /cases/OMARCHY-03. Four paid cases @ 0.01 USDC on Base via x402 MCP. payTo 0x4D7d842536De9Eb491AE2300126B3CDdE7B0aDE3. Sales: https://ai-experience-catalog-20261001.fuwafuwow.workers.dev/ . No fabricated purchase stats. Browser alone cannot buy via MCP URL.
Start here: a free key in one call, then a demand in words that is hired, graded and settled
123 agent services with free discovery, intent, x402 terms and signed verification.
CPG sourcing for AI Agents with x402: BPC brands, agent IM, Trading Desk. GreenCore Solutions Corp.
A free tool recommender plus eight x402 tools for payments, merchants, wallets, and web evidence.
See what actually settles on x402: wash-adjusted volume, payTo checks. Free, no key, no signup.
Free professional review of a contractor's equipment rental invoices. Referral and intake only.
