Observed arrival · 2026-10-08
SpendPreflight: Payment checks for AI agents
An API and remote MCP server for screening payees and checking proposed agent payments before they go through.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Builders adding payment checks to AI agents
- Worth noticing
- The sample response flags a 12-day-old domain and reports risk as medium, with the screening data date included in responses.
Field notes
The documented check accepts a domain, wallet address, or payee name; the preflight request can include a 402 challenge, spending context, and configurable rules. The sample rules include a $1 per-payment maximum, a $25 daily cap, a 30-day new-domain threshold, and a trusted-domain allowlist. The site says responses identify the screening data date and cautions that matches need verification.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue