Registry vs Presto Voice
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | Registry | Presto Voice |
|---|---|---|
| Pricing | Free (open source) | Contact for pricing |
| Target Market | Developers building ACP-compatible clients | QSR chains with drive-thrus |
| Key Feature | Curated agent discovery with authentication | Automated order taking with up to 95% non-intervention |
| Integrations | GitHub, Zed Industries, JetBrains | ElevenLabs, POS systems, Headset systems |
| Platform Type | Agent registry / directory | Voice AI automation platform |
| Open Source | Yes (GitHub) | No |
Registry and Presto Voice serve completely different markets. Pick Registry if you're a developer needing a free, open-source directory of ACP-compatible agents with authentication. Pick Presto Voice if you're a QSR chain looking to automate drive-thru orders with voice AI and boost revenue. They aren't competitors.
Curated registry for discovering and installing authentication-gated ACP-compatible AI agents.
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Managed drive-thru voice AI for large QSR chains, boosting orders and cutting labor.
Visit WebsiteWhat real users say: Registry vs Presto Voice
Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.
Registry
64 mentions across 3 sources · 30% positive — critical
Hacker News, App Store, Lemmy
What users praise
- • Curated directory with authentication requirement enhances security.
- • Open source on GitHub allows community contributions via pull requests.
- • Supports a standardized protocol (ACP) for interoperability.
- • Free to use with no pricing tiers mentioned.
What frustrates them
- • Very limited community feedback makes it hard to evaluate.
- • No user reviews or testimonials from actual users found.
- • Potential confusion with other products named 'Registry'.
- • ACP protocol may have limited ecosystem and support.
Researched Jul 3, 2026
Presto Voice
37 mentions across 3 sources · 26% positive — critical
YouTube, App Store, Lemmy
What users praise
- • Vendor claims up to 95% non-intervention on drive-thru orders, saving labor costs.
- • Claims an upselling engine with 88% offer acceptance and 6% revenue lift.
- • Runs a spectrum of Voice AI models to adapt to different menus and speech patterns.
- • Has 15+ years of restaurant-industry experience and national rollout references.
What frustrates them
- • No independent user reviews or community validation of the vendor's claims.
- • Brand name 'Presto' is confused with unrelated products like canners and transit cards.
- • App Store reviews for a similarly named app cite glitches, autoload failures, and connection errors.
- • Tourists report being locked out of the related Presto transit app without a Canadian address.
Researched Aug 26, 2026
Who should pick which
- Developer building an ACP clientPick: Registry
Registry provides a free, searchable index of authenticated agents with JSON endpoint, perfect for integrating agent discovery into your client.
- Agent creator seeking distributionPick: Registry
Registry offers a GitHub-based submission workflow and versioning, giving your agent visibility to ACP-compatible clients.
- QSR chain operatorPick: Presto Voice
Presto Voice automates drive-thru orders with voice AI, reduces staff burden, and increases average order value via upselling.
- Franchise network managerPick: Presto Voice
Presto Voice supports multi-location deployment and integrates with major POS systems, ideal for standardization across franchises.
Frequently Asked Questions
Registry vs Presto Voice: which should you choose?
Registry and Presto Voice serve completely different markets. Pick Registry if you're a developer needing a free, open-source directory of ACP-compatible agents with authentication. Pick Presto Voice if you're a QSR chain looking to automate drive-thru orders with voice AI and boost revenue. They aren't competitors.
Can I use Registry to find agents that work with any client?
No, Registry only lists agents that implement the Agent Client Protocol (ACP) and support authentication.
Does Presto Voice require hardware installation?
Presto Voice integrates with existing headset and POS systems, with easy installation at scale and minimal disruption.
Is Registry only for coding agents?
No, Registry supports multiple agent types including general-purpose agents, not just coding.
What kind of ROI can I expect from Presto Voice?
Presto Voice reports up to 6% monthly incremental revenue via upselling and up to 95% non-intervention rates, reducing labor costs.
Can I submit my own agent to Registry?
Yes, Registry is open source on GitHub and accepts community contributions via pull requests following the agent.json schema.
Does Presto Voice support phone ordering?
Yes, Presto Voice includes phone ordering automation in addition to drive-thru voice AI.
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Last reviewed: July 3, 2026