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vet402 vs Serpbit

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 Serpbit
Detailvet402 logo vet402Serpbit logo Serpbit
What it doesIndependent measurement of x402 payments for AI agents Not given
StageStartup Not given
FoundedNot given Not given
Based inJP Not given
Pricing modelNot given Freemium
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) Free plan with 1,000 credits per month. Starter $25/month for 25,000 credits. Developer $75/month for 100,000 credits. Production $150/month for 300,000 credits. Scale $350/month for 800,000 credits. Custom pricing available for 10M+ credits. Per-credit rates: $1.00 per 1,000 credits (Starter), $0.7
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
  • Search results with AI Overview, knowledge panels and related questions
  • AI Mode with sources and places
  • Shopping with products, prices, stores and filters
  • Maps with places, ratings, hours and coordinates
  • News articles with source, date and story
  • Images with originals
  • Videos with duration, platform and channel
  • Autocomplete search suggestions
  • Cached queries free within one hour
  • MCP server for AI agents
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
  • Every search checked for poisoned pages for clean results
  • Ten APIs on one key with unified credits system
  • Results available in JSON, Markdown for LLMs, or raw HTML
  • Drop-in replacement for Google Custom Search API with no daily cap
Community votes00
DR (Domain Rating by Ahrefs)26 −1 (down) since last checkNot checked yet
Trust Flow (Majestic)20
Citation Flow (Majestic)230
Referring domains (Majestic)180

3 details filled in for both companies.

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