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UK tax: take-home pay, self-employed and company tax, VAT, stamp duty, invoices and MTD.

Real phone calls for AI agents: Spain, Mexico, US, Canada, Latin America, UK, EU. From 0.25 USD/min.

Read YouTube transcripts and search what people say across 425k videos. Free API key.

Makuri (EU AI tutoring for immigrant children): 11 tools, 2 interactive panels, no user data.

Evidence-bearing public webpage monitoring with hashes, diffs, signed webhooks, REST, and MCP.

MCP server exposing the csdd CLI over stdio (one tool per subcommand).

Holidays, business days, currency, time zones, DNS/WHOIS, web page checks, geodata and text tools.

Free directory of MCP servers and x402 APIs for AI agents. Find them, or list your own in one call.

Plant or sponsor trees in a shared forest that grows from its traffic. Sponsoring uses OAuth.

WebWeaver Nexus services for MCP hosts: contact form (with UI), product overview, contact links.

Country verification research, integration planning and synthetic tests. No live identity checks.

Check a product CSV, handles, variant matrices and metafield keys. 4 of 6 free.

Read-only Pacific Crest Trail data: legs by trail mile, towns, passes and lakes, and vegan resupply.

Official MCP Server for BlindPay API - Stablecoin API for global payments

AI agents that watch DeFi positions: read a wallet report, draft agents for the owner to sign.

SEC filing boards and actuarial checks: companies, portfolios vs insurers, reinsurers, cash records.

XRechnung, Factur-X, Peppol, PINT AE, FatturaPA, KSeF → JSON + fix hints. Hosted; MIT=examples only

Free hosted MCP server by Baby Age Calculator: exact baby age, zodiac, and milestone dates. No key.

Search Open Knowledge Format (OKF) bundles, read a bundle card and submit your own with IndexNow.

Official Model Context Protocol (MCP) server for SPHIOR CODE — surface security findings from your GitHub repos directly into Cursor, Claude Code, VS Code, Cline, Continue, Windsurf, Zed and any MCP-compatible AI coding assistant.

Validate, parse and render EU e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS 3.0, KSeF.

Add a text box that proves a human typed it, not AI. Code for any framework; verify proof tokens.

Vedic and Western astrology for AI agents: charts, dasha, matchmaking, panchanga, numerology, tarot.

FlowEngine Model Context Protocol server for Claude. Manage n8n workflows, build UI components, configure client portals, and provision instances directly from Claude Desktop, VSCode, or CLI. Built with modern MCP Apps API.