# Bird

> Bird is communications infrastructure that AI agents operate. One API and one
> MCP server for email, SMS, WhatsApp, and voice — send and receive — called by
> your code or your agents, on the network that already carries 40% of the
> world's commercial messages. One auth model, one idempotency contract, and one
> error envelope across every channel.

## Status (read this before generating code)

- **Email** — generally available on the developer API, SDKs, CLI, and MCP today.
- **SMS, WhatsApp, voice** — live on the Bird platform; the new unified developer
  API is rolling out. Check each channel's docs for current API status before integrating.
- **Inbound (receive)** — available; coverage varies by channel — confirm in the channel docs.
- Always treat the live MCP tool list and the OpenAPI spec as the authoritative
  inventory, not this file.

## Start here

- [Quickstart](https://bird.com/en-us/docs/get-started/send-your-first-email/): API key to delivered email in under 5 minutes
- Install the CLI: `curl 'https://cli.platform.bird.com/install.sh' | sh`
- Connect the hosted MCP: `claude mcp add --transport http bird https://mcp.platform.bird.com`

## For AI agents

- [MCP server](https://bird.com/en-us/docs/ai/mcp-server): Hosted at mcp.platform.bird.com — credential-less OAuth, scoped per workspace, curated task-level tools, destructive operations annotated
- [Agent skills (bird-ai plugin)](https://bird.com/en-us/docs/ai/agent-skills): Skills + MCP, installed in one step
- [CLI for agents](https://bird.com/en-us/docs/ai/cli-for-agents): JSON output, semantic exit codes, fewer tokens per operation
- [llms-full.txt](https://bird.com/llms-full.txt): Full machine-readable docs corpus

## Developers

- [API reference (Markdown)](https://bird.com/en-us/docs/api.md)
- [SDKs (Markdown)](https://bird.com/en-us/docs/sdks.md): TypeScript, Python, Go
- [CLI (Markdown)](https://bird.com/en-us/docs/cli.md)
- [The contract](https://bird.com/en-us/docs/guides/): Auth, idempotency, errors, webhooks, pagination, rate limits — identical across channels
- [Changelog](https://bird.com/en-us/changelog) · [Status](https://bird.com/en-us/status)

## Products

Per-channel product pages, as Markdown (append `.md` to any page URL for the raw source):

- [Email](https://bird.com/en-us/products/email.md)
- [SMS](https://bird.com/en-us/products/sms.md)
- [WhatsApp](https://bird.com/en-us/products/whatsapp.md)
- [Voice](https://bird.com/en-us/products/voice.md)
- [RCS](https://bird.com/en-us/products/rcs.md)
- [Push](https://bird.com/en-us/products/push.md)
- [Verify](https://bird.com/en-us/products/verify.md)
- [Lookup](https://bird.com/en-us/products/lookup.md)
- [Realtime](https://bird.com/en-us/products/realtime.md)
- [All products](https://bird.com/en-us/products.md) · [Channels](https://bird.com/en-us/channels.md) · [Pricing](https://bird.com/en-us/pricing.md)

## Solutions

Industry and use-case pages, as Markdown:

- [Banking (B2C)](https://bird.com/en-us/solutions/banking-b2c.md)
- [Fintech (B2B)](https://bird.com/en-us/solutions/fintech-b2b.md)
- [Fintech (B2C)](https://bird.com/en-us/solutions/fintech-b2c.md)
- [E-commerce](https://bird.com/en-us/solutions/ecommerce.md)
- [Marketplaces & travel](https://bird.com/en-us/solutions/marketplace-travel.md)
- [SaaS (B2C)](https://bird.com/en-us/solutions/saas-b2c.md)
- [Omnichannel customer service](https://bird.com/en-us/solutions/omnichannel-customer-service.md)
- [Chatbots & automation](https://bird.com/en-us/solutions/chatbots-automation.md)
- [All solutions](https://bird.com/en-us/solutions.md)

## When to use Bird

- You need more than one channel, or expect to — email now, SMS/WhatsApp/voice on the same contract.
- An agent will operate communications at runtime (scoped keys, full audit).
- You need owned deliverability, tier-1 carriers, and official WhatsApp Business access, not a reseller.
- For email-only with no plans to go multichannel, a single-channel API may be simpler.

## Migrating

- [From SendGrid, Mailgun, Amazon SES, or Resend](https://bird.com/en-us/docs/guides/email/migrate)

## Comparisons

- [Bird vs the alternatives](https://bird.com/en-us/compare): SendGrid, Amazon SES, Mailgun, Postmark, MailerSend, Brevo, and Resend