# Vonage SMS API

by [Vonage](/organizations/vonage/)

- **ID:** `de8728b2-b50c-47bd-9cb4-cd5bd099abaf`
- **JSON API:** /api/v1/catalog/products/de8728b2-b50c-47bd-9cb4-cd5bd099abaf/
- **Slug:** vonage-sms-api
- **Product website:** https://www.vonage.com/communications-apis/
- **Documentation:** https://developer.vonage.com
- **Pricing:** https://www.vonage.com/communications-apis/sms/pricing/
- **Organization website:** https://www.vonage.com
- **Categories:** [Messaging and Chat](/categories/messaging-chat/)

## Description

API for sending SMS text messages to users worldwide.

## AI-native score: Unrated

Research coverage is 38/100. An AI-native grade requires 40/100. The provisional breakdown below shows the AI-native signals recorded so far. The AI-native score measures agent-readiness and is not a substitute for your own security or vendor-risk review. See [methodology](/methodology/) for how coverage and the grade are computed.

| Component | Applies | Raw | Effective weight | Nominal weight | Contribution |
| --- | --- | --- | --- | --- | --- |
| Integration | Yes | 5/10 | 35% | 35% | 17.5 |
| Trust | Yes | 2/6 | 30% | 30% | 10.0 |
| Portability | Yes | 2/4 | 20% | 20% | 10.0 |
| Security | Yes | 0/4 | 15% | 15% | 0.0 |

- **Integration signals:** MCP server (+2); API spec, OpenAPI / gRPC / GraphQL (+1); Command-line interface (+1); SDK / developer kit (+1)
- **Trust signals:** Sandbox environment (yes, +2)
- **Portability signals:** Open standards (+1); Standard protocol access (+1)

## Trust & Data Policy

- **WebMCP:** – No
- **Sandbox environment:** ✓ Yes
- **Open standards:** ✓ Yes
- **Standard protocol access:** ✓ Yes
- **Self-hostable:** – No
- **Open source:** – No
- **Not yet researched:** llms.txt, Headless signup, Trust center, Multi-factor authentication, Zero data retention, No generative AI training, Hard budget caps, Data export, Data import, No proprietary-SDK lock-in, Documented provider swap

## Confirmed absences

These decision fields were researched and confirmed absent — not available based on current evidence, until contrary information supersedes the finding. Each carries the check performed, the page checked, and the date, so you can act on the negative without repeating the research. A label-scoped absence applies only to its label (e.g. no SOC 2 does not mean no certifications).

- **Open source** — confirmed absent (whole field), checked 2026-10-08. Checked the SMS API product-overview page for an open-source or source-available offering; it presents only a hosted cloud programmable-SMS API. Source: https://www.vonage.com/communications-apis/sms/
- **Self-hostable** — confirmed absent (whole field), checked 2026-10-08. Checked the SMS pricing/plans page for a self-hosted or on-premises deployment option; it presents only hosted per-message usage pricing. Source: https://www.vonage.com/communications-apis/sms/pricing/
- **Web-MCP** — confirmed absent (whole field), checked 2026-10-07. Checked the developer documentation home for an in-browser WebMCP / document.modelContext affordance; the docs document only an HTTP API and SDKs, with no MCP mention. Source: https://developer.vonage.com

## Security & Compliance

**Compliance certifications:** Not yet researched.
**Access controls:** Not yet researched.

## Capabilities

No capabilities listed.

## Jobs To Be Done

- **Send SMS programmatically** — Send SMS messages through a software API.

## Offers

**Pricing page:** https://www.vonage.com/communications-apis/sms/pricing/

No offers listed.

## Reviews

No approved reviews yet.

## Benchmarks

No benchmarks listed.

## Documentation

The primary documentation link is at the top of this page. No other documentation links listed.

## API Specs

- [Vonage SMS OpenAPI](https://developer.vonage.com/api/v1/developer/api/file/sms?format=json&vendorId=vonage) (OpenAPI)

## MCP Servers

- [Vonage Documentation MCP Server](https://documentation-mcp.vonage.dev/mcp)

## A2A Servers

Not yet researched.

## Native Connectors

Not yet researched.

## Command-Line Interfaces

- [Vonage CLI](https://github.com/Vonage/vonage-cli) (`vonage-cli`)

## Developer Kits

- [Vonage Python SDK](https://github.com/Vonage/vonage-python-sdk) — Languages: Python

## Agent Skills

Not yet researched.

## Related products

- [Telnyx SMS API](/organizations/telnyx/products/telnyx-sms-api/) by Telnyx — Tier B. Same job: Send SMS programmatically (Finishes end to end).
- [Brevo](/organizations/brevo/products/brevo/) by Brevo — Tier C. Same job: Send SMS programmatically (not assessed).
- [Commune](/organizations/commune/products/commune/) by Commune — Tier C. Same job: Send SMS programmatically (not assessed).
- [Twilio](/organizations/twilio/products/twilio-messaging/) by Twilio — Unrated. Same job: Send SMS programmatically (not assessed).
- [Sinch SMS API](/organizations/sinch/products/sinch-sms-api/) by Sinch — Unrated. Same job: Send SMS programmatically (not assessed).
- [Plivo SMS API](/organizations/plivo/products/plivo-sms-api/) by Plivo — Unrated. Same job: Send SMS programmatically (not assessed).


## Add this badge to your site

Own this product? The Open Agent Guide badge links your site back to this directory listing. It makes no grade claim while this product is unrated, and updates on its own once enough is verified to assign a grade.

Badge image: https://www.openagentguide.com/organizations/vonage/products/vonage-sms-api/badge.svg (seal), https://www.openagentguide.com/organizations/vonage/products/vonage-sms-api/badge.svg?style=flat (flat). For the copy-paste HTML and Markdown embed code, open the badge panel on [this product's page](https://www.openagentguide.com/organizations/vonage/products/vonage-sms-api/#badge-embed-heading). See [how scoring works](/methodology/).

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Content licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).