npayload vs ActSeal

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

npayload compared with ActSeal
Detail	npayload	ActSeal
What it does	Make your systems autonomous	Ed25519-signed receipts for agent actions
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Not given
Pricing	Not given	Free: 100 receipts per UTC day. Starter: $19/month via USDC, USDT, or ETH for 500 receipts per UTC day.
Key features	Event publishing and receiving SDK and CLI tools Request signature verification Event delivery reliability	Issue signed receipts over action hashes Public verification without authentication Payment via USDC, USDT, or ETH Idempotency-Key support for 24 hours stdio MCP integration Issue and consume one-shot receipts
What makes it different	One SDK client connects to all five products Integration with existing systems without rebuilding From setup to production in minutes Industry-specific use cases pre-built	Portable cryptographic signatures verifiable by anyone without trusting the agent or service Built specifically for agent stacks and MCP/OpenAPI agents Cross-agent trust without sharing private keys
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	9 no change since last check	1 no change since last check
Trust Flow (Majestic)	0	2
Citation Flow (Majestic)	6	16
Referring domains (Majestic)	0	3

3 details filled in for both companies.