---
title: "Send the code. Confirm the number."
canonical: "https://bird.com/verify-api/features/sms"
---

# Send the code. Confirm the number.

Deliver a managed passcode by SMS and check the answer in your application. A successful check confirms control of the recipient.

## 验证码已收到。 收件人已确认。

将验证集成到登录流程中。收集验证码、检查结果，并帮助客户继续操作。

[了解收件人验证](/docs/guides/verify/sending-verifications#check-the-code)
示例产品记录。这些控件仅更改示例，不会发送请求或产生购买。

## A text delivered. An answer still to check.

Deliver a verification code by text message.

### Resolve an eligible SMS route.

Supply the phone number in international format. Country configuration defines the available channels; per-request channel options can narrow or reorder that plan, but cannot add an unavailable channel.

### Use the managed code message.

Bird generates the passcode and enforces its lifetime and attempt limits. Sender presentation follows the selected identity and the destination’s number or brand-name requirements.

### Check the full recipient identity.

Submit the code with exactly the recipient set used at creation. Read success and reason from the check response, then let your application decide the appropriate account action.

[Explore Verify sms verification →](/docs/guides/verify/overview)

## Keep building with Verify.

Prepare another eligible route and the policy that governs every code attempt.

[Fallback delivery Give an undelivered code another configured route. →](/verify-api/features/orchestration)

[Country controls Choose where and how verification delivery is attempted. →](/docs/guides/verify/countries)

[Code controls Set code lifetimes, attempt limits and resend cooldowns. →](/docs/guides/verify/sending-verifications)

[Explore Verify →](/verify-api)

## 规模扩展 不失控。

在工作区中组织团队，控制 API 访问权限，通过审计日志追踪变更。

[工作区](/docs/guides/workspaces)[团队角色](/docs/guides/users-teams-roles)[API 身份验证](/docs/guides/authentication)
[了解企业方案](/enterprise)

## Start with Verify. Build across channels with Bird.

[Get Started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Fverify) · [Contact Sales](/demo?product=verify)

[Email](/email-api) · [SMS](/sms-api) · [WhatsApp](/whatsapp-api) · [Apple Messages](/apple-messages-api) · [Voice](/voice-api)



## Related resources

- [Verify phone numbers at signup](/learn/series/verify-phone-numbers-at-signup) (video)
- [Verify your first customer](/docs/get-started/verify-your-first-customer) (docs)
- [What does OTP mean? One-time passwords explained](/explained/verify/what-does-otp-mean) (answer)
- [Build your first integration](/learn/paths/integration) (course)

[Get an implementation brief](/learn/workspace?topic=verify)