My take
For most projects I'd start with Cloudflare. The price and the global coverage outweigh its weak AI presence. Twilio is the safe default, the one nobody gets fired for picking, and you pay for that safety - for very good reasons. Other options are out there and they have their place, but for me they fit only specific niches.
Not sure which way to go?
This page tells you what AI sees. I can help you fit it to your call volume, your budget, and your team.
| Tool ▲ | AI Visibility iHow often AI recommends this tool - the average of three model scores from 0 to 10: Claude Sonnet 4.6, Gemini 2.5 Flash and GPT-4o.▲ | Quality iA measured score from 0 to 100, blending documentation depth (docs) and feature coverage (feat).▲ | Agent-ready ▲ | Price ▲ | Coverage ▲ | Tsahi's note ▲ |
|---|---|---|---|---|---|---|
 Twilio | 6.7avg  10 6 4 | 64 71%60% | ~Generic API MCP | $0.40-0.80/GB | 9 regions | The safe bet |
 Xirsys | 6.3avg 694 | 77 79%76% | None | Quote / annual | 11 DCs | Past its prime |
 Metered | 5.3avg 880 | 81 79%82% | ✓TURN-scoped llms.txt | ~$0.04/GB | 31+ regions | No call here - measured, not judged |
 Cloudflare | 1.7avg 500 | 68 63%70% | ~Realtime llms.txt | $0.05/GB | 300+ cities | Tsahi's pick |
 ExpressTURN | 0.0avg 000 | 51 58%48% | None | ~$9/mo flat | limited | No call here - measured, not judged |
Documentation depth
Feature coverage
Claude Sonnet 4.6
Gemini 2.5 Flash
GPT-4o
Claude Sonnet 4.6
Gemini 2.5 Flash
GPT-4o
VERIFY
- Price and coverage are indicative figures from my research notes
- Verify against each vendor's current pricing and regions page before you lean on them
None of that is a score. It's a recommendation. The grades on this page measure the machines, not my opinion of the vendors.