"Connecting to and Running Queries on Local and Remote Databases" matching MCP connectors:

Operated by SpendPreflight: sanctions screening and allow/hold/block preflight for x402 payments.

Verify email addresses before you send: single, batch (50) and bulk lists (10,000).

Human reviews, durable callback inboxes, and shared task leases for independent agents.

Search open jobs from employers' own career sites: roles, companies and posting status.

Instant quotes and ordering for 3D printing and CNC machining: SLS, FDM, aluminum and brass parts.

Attestari's verdict on an npm or PyPI package version, asked before an agent installs it.

Look up the ISO 20022 replacement for legacy messages like MT103, and which schemes use a message.

Japanese national holidays and business-day calculations, verified against Cabinet Office data.

Many links as one short link with a QR code; read urlhub sets and preview what links are about.