Campfire SMS vs Kairos

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

Campfire SMS compared with Kairos
Detail	Campfire SMS	Kairos
What it does	Text your existing AI agent by SMS	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 start: 40 messages after phone verification, no card required. Monthly plan: $8 USD per month for 500 messages. One-time packs: $5 for 200 messages, $10 for 500 messages, $20 for 1,300 messages, $40 for 2,800 messages. Credits never expire.	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	Two-way SMS messaging with AI agents Grok Bot webhook wake from incoming SMS Support for Grok Bot, Codex, Claude Code, and compatible MCP hosts Local agent connector Hosted MCP support No phone app required Agent updates and notifications by SMS Message credits that never expire	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	Text your existing agent without changing workflows or tools Grok Bot can wake from incoming SMS while your PC is off No subscription required for one-time message packs Agent keeps existing permissions and tools	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)	3 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	19	10
Referring domains (Majestic)	10	1

5 details filled in for both companies.

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