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IDT Express: IDT Express is one of the world leaders for DID APIs, Wholesale Voice Termination, and A2P SMS\.
IDT Express, a division of IDT Carrier Services, is a global provider of Wholesale Voice, DID APIs, and A2P SMS services to businesses across the globe\.
For agents: IDT Express provides wholesale voice termination, DID APIs and A2P SMS services for businesses globally, documented for developers integrating telephony and mes
did apiwholesale voice terminationa2p smsvoip carriertelecom api
- Authority
- 47 reach 6 · trust 5 · quality 21 · freshness 15
- Tier
- listed
- llms.txt
- https://idtexpress.com/llms.txt
- Sections
- 26
- Links
- 104
- Size
- 14695 bytes
- Popularity rank
- #646742
- Country
- United States
- Categories
- Communications · APIs and SDKs
- For agents
- Interface: a documented API or declared MCP endpoint an agent can call
- Audience
- business · agents can: call api, read docs, contact support · en
- First seen
- 2026-10-19T10:44:25.850Z
- Last checked
- 2026-10-21T11:00:02.987Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-21T10:59:50.867Z. Cached copy · Source on idtexpress.com
# IDT Express: IDT Express is one of the world leaders for DID APIs, Wholesale Voice Termination, and A2P SMS\.
> IDT Express, a division of IDT Carrier Services, is a global provider of Wholesale Voice, DID APIs, and A2P SMS services to businesses across the globe\.
Generated by Yoast SEO v28.6, this is an llms.txt file, meant for consumption by LLMs.
## Pages
- [Whatsapp Checker](https://idtexpress1dev.wpenginepowered.com/whatsapp-checker/)
- [Learn](https://idtexpress1dev.wpenginepowered.com/blog/)
- [Home](https://idtexpress1dev.wpenginepowered.com/)
- [Voice Termination](https://idtexpress1dev.wpenginepowered.com/voice-termination/)
- [OTP test page](https://idtexpress1dev.wpenginepowered.com/elementor-25868/)
## Posts
- [1/1 vs 6/6 vs 60/60 Billing: What Your Dialer Pays For](https://idtexpress1dev.wpenginepowered.com/blog/voice-billing-increments/)
- [CLI vs Non\-CLI Routes: Why Your Outbound Answer Rates Collapsed](https://idtexpress1dev.wpenginepowered.com/blog/cli-vs-non-cli-routes/)
- [Reselling Voice Termination: How to Build a Three\-Tier Route Offer and Price the Margin](https://idtexpress1dev.wpenginepowered.com/blog/reselling-voice-termination-tiers/)
- [Answer Rates for AI Outbound Agents: The Route Is Half the Problem](https://idtexpress1dev.wpenginepowered.com/blog/ai-outbound-answer-rates/)
- [Reading ASR, ACD and PDD: A Route Quality Playbook for LCR Buyers](https://idtexpress1dev.wpenginepowered.com/blog/asr-acd-pdd-route-quality/)
## DID Prices
- [Algeria CallerID Only](https://idtexpress1dev.wpenginepowered.com/blog/did_pricing/algeria-callerid-only/)
- [Albania Two Way](https://idtexpress1dev.wpenginepowered.com/blog/did_pricing/albania-two-way/)
- [Albania Toll\-Free](https://idtexpress1dev.wpenginepowered.com/blog/did_pricing/albania-toll-free/)
- [Albania Local](https://idtexpress1dev.wpenginepowered.com/blog/did_pricing/albania-local/)
## Pricing Plans
- [Essential](https://idtexpress1dev.wpenginepowered.com/blog/pricing_plan/essential/)
- [Professional 2K](https://idtexpress1dev.wpenginepowered.com/blog/pricing_plan/professional-2k/)
- [Connect 2K](https://idtexpress1dev.wpenginepowered.com/blog/pricing_plan/connect-2k/)
## Videos
- [What are the penalties for violating SMS spam laws?](https://idtexpress1dev.wpenginepowered.com/video/what-are-the-penalties-for-violating-sms-spam-laws/): In this video, we break down the primary laws governing SMS marketing—primarily the U\.S\. Telephone Consumer Protection Act \(TCPA\)—and explain the massive financial risks involved if you don't get consumer consent right\.
- [How do you prevent SMS fraud \(smishing\) in enterprise messaging?](https://idtexpress1dev.wpenginepowered.com/video/how-do-you-prevent-sms-fraud-smishing-in-enterprise-messaging-2/): 🛡️ Enterprise Smishing Defense: How to Stop SMS Fraud in Your Business Communications
- [How to write SMS Marketing copy that doesn't feel spammy](https://idtexpress1dev.wpenginepowered.com/video/how-to-write-sms-marketing
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| brevo.com | Brevo API Documentation | interface Developer tools Communications +1 | 68 | ✓ | ✓ | ||
| resend.com | Resend | interface Communications APIs and SDKs +1 | US | 68 | ✓ | ✓ | |
| tidio.com | Tidio | transactional AI and machine learning Marketing +2 | 68 | ✓ | ✓ | ||
| pushwoosh.com | Pushwoosh | interface Data and analytics Marketing +1 | FI | 67 | ✓ | ✓ | |
| salesmartly.com | SaleSmartly | transactional AI and machine learning Marketing +2 | 67 | ✓ | ✓ | ||
| twilio.com | Twilio Docs =-~-~-= | interface Communications APIs and SDKs +1 | US | 67 | ✓ |
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