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对话式开具电子发票（数电票）：第一步免费生成发票草稿（自动校验税号、税率并算税），第二步确认开票（需 App Key，按张计费），支持开票记录查询。

Annotation-survival conformance for MCP tools. Receipt $0.01, check $4.99, plans $9.99/$19.99.

Measure what ChatGPT, Claude, Gemini and 4 more AI engines say about any business. No auth.

7 utility tools in here: exchange rate, UUID, hash, Base64, timestamp, calculator, unit conversion.

Convert public web pages to PDF, images, Markdown, or JSON using one API key.

Source-linked research on U.S. judges, courts, cases, and judicial analytics.

Turn any web page into a narrated video: films the real site, writes, voices and captions it

Polymarket resolution-rule research for approved customers; public discovery is separate.

World Bank World Development Indicators: curated country-year economy, health, education and more.

Free AI crawler checks, Agent Surface audits, A2A actions and optional x402 evidence packs.

Amazon data MCP: products, reviews, niches, WIPO design/IP + US litigation, AI search & trends.

Live Base Mainnet on-chain data (gas, DEX, Aave, token risk, prices). Pay per call in USDC via x402.

Czech & Slovak business registry — company lookup by IČO, name, legal form, VAT. Official ARES.

Agent-to-Agent (A2A) hub for cosmetics: skin care, fragrance, sun care, dermocosmetics.

Navisworks coordination and clash detection via APS — reports, viewpoints, model objects.

No-code databases, forms, portals and AI sites. Manage records and automation via natural language.

34 data tools: Polymarket skill, FDA and hospitals, oil, attention, travel, SEC filings

US federal contracting data: open solicitations, buying agencies, contractors, price history.

Asian govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 28 countries; Japan free.

Read-only Spirit Cards MCP: PoW-mined NFT cards on Robinhood Chain — stats, cards, leaderboard.