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vet402 vs Tap2Cal

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

vet402 compared with Tap2Cal
Detailvet402 logo vet402Tap2Cal logo Tap2Cal
What it doesIndependent measurement of x402 payments for AI agents Create add-to-calendar links from your own code or let an AI assistant do it
StageStartup Not given
FoundedNot given Not given
Based inJP Not given
Pricing modelNot given Not given
PricingFree: US$0 per month (1,000 lookups a month); Pro: US$49 per month (50,000 lookups a month); Scale: US$199 per month (500,000 lookups a month) Not given
Key features
  • API key management with free tier at 10 requests per minute
  • Multi-language SDK support including curl, TypeScript, Python, MCP and no-code n8n
  • L0, L1 and L2 measurement layers for payment verification
  • On-chain settlement re-verification across multiple blockchains
  • Trust score and decision API (ALLOW, WARN, BLOCK)
  • Public impact ledger recording all purchases and deliveries
  • Support for Base, Arc, Celo, Arbitrum One, Avalanche C-Chain, BNB Chain, Solana, Stellar, Tempo and XRPL
  • Create events via REST API with details like name, date, time, timezone and location
  • Generate shareable calendar links for each event
  • MCP server integration with AI assistants like Claude
  • List events with page views, calendar button clicks and RSVP counts
  • Track RSVPs with accept and decline counts
  • Add or remove event flyers from URL or base64
  • Custom event links with personalized slugs
  • Open source MCP package for local deployment
  • Support for Google Calendar, Apple Calendar, Outlook and other calendar apps
  • Rate limiting of 100 requests per 10 seconds per IP
What makes it different
  • Only service that buys from x402 endpoints with its own funds and publishes settle-through receipts
  • Published methodology and measured error rates for transparency
  • Non-custodial design that never holds customer funds or keys
  • Free API tier for reads without key requirement
  • Built-in MCP server support for seamless AI assistant integration
  • Open source option with tap2cal-mcp package for local deployment
  • Multi-calendar support allowing guests to save to their preferred calendar app
Community votes00
DR (Domain Rating by Ahrefs)25 −1 (down) since last check6 no change since last check
Trust Flow (Majestic)20
Citation Flow (Majestic)2317
Referring domains (Majestic)184

3 details filled in for both companies.

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