VaxVoIP Agent AI SDK vs RunAPI

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

VaxVoIP Agent AI SDK compared with RunAPI
Detail	VaxVoIP Agent AI SDK	RunAPI
What it does	SIP-to-OpenAI gateway for building real-time multilingual AI voice agents	One API key for every AI model with unified billing and schema-first integration
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Paid	Not given
Pricing	Annual commercial licensing: 10 concurrent calls $1,480, 20 concurrent calls $2,620, 40 concurrent calls $4,420, 80 concurrent calls $6,420, 160 concurrent calls $8,860, Unlimited concurrent calls $10,680, Unlimited services and unlimited concurrent calls $16,860 (all USD, one year, contact sales)	Pay-as-you-go token-based billing. Video models from $0.0096/second to $2.52/video. LLM models from $0.05/1M input tokens. Audio and image models vary by capability. No subscriptions, no minimums, credits never expire. Failed generations not charged.
Key features	SIP server and IP-PBX integration OpenAI real-time speech-to-speech models Multilingual voice interaction Real-time SIP audio processing Sample source code in C#, VB.NET, and Delphi 30-day fully functional trial Simplified OpenAI integration Commercial B2B deployment licensing	Single API key for 250+ models across all providers Pay-as-you-go billing with no subscriptions or minimums Schema-first SDKs for six languages Real-time pricing transparency Per-project API keys for team access control Automatic task polling and webhook support Agent integration with OpenClaw and Hermes Usage analytics and spending controls Credits that never expire
What makes it different	Gateway handles SIP audio bridging so developers focus on voice-agent logic Direct real-time connection between SIP calls and OpenAI speech models Eliminates complex OpenAI protocol and media integration overhead Includes working sample projects with documentation and demo videos Supports natural multilingual conversations on live calls	One authentication method unlocks the entire catalog across all AI model providers with no separate credentials to manage Transparent per-call pricing billed monthly with no hidden markups and failed requests not charged Pre-built typed schemas and constraints delivered through model skills for agent code generation Unified billing across all modalities and providers in a single monthly invoice Integrates natively into Claude Code, Cursor, and other developer agent environments
Community votes	0	0
DR (Domain Rating by Ahrefs)	25 +1 (up) since last check	35 no change since last check
Trust Flow (Majestic)	44	7
Citation Flow (Majestic)	31	37
Referring domains (Majestic)	95	125

4 details filled in for both companies.

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