ActOnce Spend Gateway vs Kairos

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

ActOnce Spend Gateway compared with Kairos
Detail	ActOnce Spend Gateway	Kairos
What it does	Policy-driven spending controls for AI agents	The transaction layer for AI agents
Stage	Not given	MVP
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Freemium	Contact for pricing
Pricing	Free: $0/month (open source, self-hosted). Pro: $24/month with hosted dashboard, 3 agents, 1,000 spend checks/month. Team: $99/month with 10 agents, 10,000 checks/month, team approvals. Business: $299/month with unlimited agents and checks.	Per-execution pricing: one fee per execution that returns proof, charged only when proof comes back. Failed or cancelled runs cost nothing. Planning and approvals are free.
Key features	Policy Engine with YAML configuration for amount limits, merchant allowlists, category blocks, business hours, and duplicate windows Duplicate Detection using SQLite to prevent the same purchase twice within a configurable time window Human-in-the-Loop approval with Telegram alerts and dashboard queue for purchases exceeding threshold MCP-Native integration for OpenClaw, Hermes, and any MCP-compatible agent Zero Credential Exposure with no access to cards, tokens, or Stripe credentials Local-first architecture with all policy files, logs, and databases stored on your machine Dry-run and simulation mode for testing policies before deployment	Boundary approval system for controlled execution Checkpoint-based resumable execution Verifiable proof of completion Composable proof for multi-agent workflows Per-execution pricing model Integration with multiple agent frameworks
What makes it different	Policy-driven rules that the agent cannot override, unlike prompt-based guardrails Zero credential exposure means the gateway never sees payment cards or API keys Duplicate detection with SQLite prevents duplicate purchases within a configurable time window Native MCP integration works out of the box with OpenClaw, Hermes, Claude Code, and Cursor	Pay only for verified results, not for attempts or planning Human-approved boundaries ensure agent actions stay within limits Interruptible checkpoints allow pausing and resuming executions Proof is built into results for auditability and composability
Community votes	0	0
DR (Domain Rating by Ahrefs)	23 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	6	0
Citation Flow (Majestic)	19	10
Referring domains (Majestic)	12	1

5 details filled in for both companies.

More alternatives to ActOnce Spend Gateway More alternatives to Kairos