Finance & accounting: MCP servers, A2A agents and x402 APIs

• Chit402 Live x402

  Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk for agent spend — export, policy, evidence. Possession book for principals. POST /v1/chat/completions retur…

  x402 paid API · 1 endpoint · check 89/100

• 24klabs.ai Live x402

  Generate UUID v4/v5/v7, ULID, or NanoID (single or batch), or parse/validate an existing id and extract its embedded timestamp. (23 paid endpoints on api.24klabs.ai.)

  x402 paid API · 12 endpoints

• banking-compliance-production.up.railway.app Live x402

  Search the federal banking compliance rules database. 56 rules across Reg DD, Reg Z, UDAAP, ECOA, BSA/AML, and more.

  x402 paid API · 1 endpoint

• compliancepulse.theaslangroupllc.com Live x402

  Is this EU VAT number valid? Live VIES check against the European Commission's official VAT Information Exchange System — validate a European VAT id, verify a business tax id before invoicing, confirm B2B reverse-charge…

  x402 paid API · 2 endpoints

• data.japanagent.dev Live x402

  Company name search across jurisdictions. jurisdiction=lei searches the global GLEIF LEI database (all countries); jurisdiction=jp searches the official Japan National Tax Agency corporate registry. Returns registered l…

  x402 paid API · 3 endpoints

• delx.ai Live x402

  Delx Commerce cheap image generation API for agents at $0.01 USDC. Call when you need a product visual, ad creative, thumbnail, banner, logo concept, or social graphic with no API key or monthly plan. Commercial FLUX Sc…

  x402 paid API · 12 endpoints

• exp-100k-001-v2.vercel.app Live x402

  Find and rank Chile hospital buyers and public health-service buyers for medical equipment. Returns named buyer leads, buyer IDs, regions, repeat procurement demand, budget evidence and ChileCompra OCDS provenance for s…

  x402 paid API · 2 endpoints

• freestylevault.com Live x402

  Committed IFTA tax rates for a quarter (?quarter=2026-Q2&fuel_type=diesel&jurisdiction=WA), grouped by jurisdiction × fuel type with effective periods clipped to the quarter — mid-quarter revisions read as separate peri…

  x402 paid API · 1 endpoint

• mart402.com Live x402

  PDF facts before you pay for parsing: page count, metadata, per-page text volume, scanned-or-not estimate. 0.001/call. (21 paid endpoints on mart402.com.)

  x402 paid API · 12 endpoints

• payload402.edgebytenet.workers.dev Live x402

  Convert amounts between ISO 4217 currencies using ECB daily reference rates (Frankfurter). Use for invoices, travel budgets, expense reports, and shopping comparisons when you need a verifiable rate instead of LLM arith…

  x402 paid API · 4 endpoints

• property.payapi.market Live x402

  UK street-level crime statistics by postcode (Police UK). (8 paid endpoints on property.payapi.market.)

  x402 paid API · 8 endpoints

• redlynr.com Live x402

  Agent guardrail decision engine. Call once before every agent action; returns a single decision — proceed, slow down (with a reason and wait time), or stop — based on cost budget, chain depth, step cap and retry budget,…

  x402 paid API · 1 endpoint

• shop.netlobo.com Live x402

  Live crypto prices: USD spot for BTC, ETH and SOL in one call, fetched per call (not cached), so the figure is the number right now. A cheap, high-frequency data lane for x402 buyers budgeting in the unit they pay with.…

  x402 paid API · 12 endpoints

• stat.halowerk.com Live x402

  Reports the credit-to-GDP gap for a country, which is the deviation of the credit ratio from its long-run trend and the quantity the Basel framework uses to trigger the countercyclical capital buffer. The thresholds app…

  x402 paid API · 4 endpoints

• toolrail.dev Live x402

  Current VAT rates for supported European countries (EU-27 + UK, CH, NO...). Standard, reduced and super-reduced rates, provided through the third-party vatnode dataset; verify applicability for your transaction. (30 pai…

  x402 paid API · 12 endpoints

• vealth.net Live x402

  Work tCO2e Accounting (CDP-settled mirror) — ecological accounting guidance from the production settle-to-retire mapping for a work type. NOT a credit, NOT a retirement.

  x402 paid API · 1 endpoint

• web-production-18a32.up.railway.app Live x402

  Current weather conditions by city or place name. (5 paid endpoints on web-production-18a32.up.railway.app.)

  x402 paid API · 5 endpoints

• x402agentic.ai Live x402

  Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.

  x402 paid API · 1 endpoint

Related capabilities

x402 paid APIsPaymentsLegal & complianceDocuments & PDFsReal estateMaps & travelOn-chain dataAgent infrastructure

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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