Lista de email API
Choose the right email API for your workload
Deliver transactional emails, run marketing campaigns, and manage AI agent mailboxes from one platform. Ship and operate email workflows through the REST API, SDKs, CLI, and Bird MCP.
This shortlist matches each provider to the workload it fits best and spells out the trade-offs before you integrate. Every pricing table compares published rates side by side and separates a spendable Bird balance from fixed monthly send allowances.
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¿Qué email API encaja con tu aplicación?
Choose Bird when you want transactional delivery, marketing broadcasts, and conversational agent inboxes in a single account. Use the table below to see where other providers fit specific workloads. These recommendations reflect documented product capabilities rather than inbox-placement rankings.
| Proveedor | Elige para | Comprueba antes de elegir |
|---|---|---|
| Bird | Transactional email, marketing campaigns, and agent mailboxes in one workspace, complete with reusable templates, audience targeting, threaded replies, and inbound sender rules. | Plan how you will map message streams and suppressions when migrating an existing app, since Bird’s message category tags traffic rather than isolating infrastructure. Review the idempotent retry window and single-address email lookup guide. |
| Resend | React Email templates rendered and sent directly from the Node SDK. | Dedicated IPs require the Scale plan and an add-on, while managed IP pools scale dynamically without exposing the underlying IP addresses. |
| Postmark | Message Streams that keep transactional receipts and broadcast traffic on separate IP ranges. | Safe send retries require your own deduplication logic: Postmark does not support request idempotency keys and recommends combining status-code checks with delivery webhooks. |
| Mailgun | Inbound Routes that filter incoming emails and forward or store matching messages. | Mailgun’s Inbox Placement test key prevents duplicate seed tests rather than deduplicating customer email retries. |
| Amazon SES | Applications already running on AWS that manage email sending, verified identities, configuration sets, and suppression lists through IAM and the AWS CLI. | AWS pricing bills send volume, account tiers, attachment data transfer, and optional add-ons separately instead of bundling a monthly send allowance. |
| SendGrid | Subusers that isolate sending domains, analytics, team permissions, and credit limits under a parent account. | Inbound Parse posts incoming mail and attachments to your webhook URL, leaving thread state and message storage up to your application. |
| MailerSend | Hosted MCP tools and a CLI for sending email and SMS and managing domains, templates, and recipients. | Dedicated IPs are gated by monthly sending volume and manual review on qualifying plans. |
| Brevo | MCP tools for managing CRM contacts, marketing campaigns, templates, and domains. | Batch retry protection covers the entire multi-version batch request at once and expires after 30 minutes. |
¿Cómo se comparan Bird, AgentMail y Nylas en estado de buzón?
All three products provision hosted inboxes that store incoming messages and track reply threads for software and AI agents. The Nylas column covers Agent Accounts, which give an autonomous agent its own mailbox without OAuth access to an employee inbox.
| Requisito de buzón | Bird | AgentMail y Nylas Agent Accounts |
|---|---|---|
| Webhook analizado | The inbound mail webhook delivers mailbox, thread, and message identifiers alongside sender details, recipients, and quote-stripped reply text with a flag when long bodies are truncated. | AgentMail: Inbound mail events include message and thread payloads, though plain-text and HTML availability depends on what the sender transmitted. Nylas: Inbound notifications announce newly stored mail, and large payloads omit the body so your app fetches the full message via the API. |
| Contenido almacenado | Stored mailbox messages retain headers, extracted reply text, and attachments so agents can read context on demand, while full bodies and inbound raw MIME follow configurable retention windows. | AgentMail: Message retrieval returns stored content and reply text stripped of quoted history, with separate calls for raw MIME and attachments. Nylas: Agent Account mailboxes organize stored messages in folders under policy-defined storage and retention limits. |
| Provisión de direcciones | Provision a mailbox in one call on a generated address for instant testing, or bind it to your own receiving-enabled custom domain. | AgentMail: Create an inbox on the default domain or a verified custom domain, with optional auto-generated usernames. Nylas: Provision a hosted Agent Account via the API or CLI without user OAuth on either a custom domain or a Nylas trial domain. |
| Estado de hilo y respuesta | Conversation threads track participants and unread counts automatically: replying appends to the existing thread while composing starts a new conversation. | AgentMail: Reply actions keep outbound responses inside the same retrievable thread. Nylas: Threaded replies set standard reply headers automatically and attach the sent message to the active Agent Account thread. |
| Reglas de remitente | Receive policies and sender rules restrict an inbox to existing threads or approved senders. Blocked messages stay inspectable in a separate folder without triggering webhooks or agent runs, or can be dropped outright. | AgentMail: Allow and block lists filter outbound sends, new inbound mail, and replies at the organization, pod, or inbox level. Nylas: Workspace rules govern inbound and outbound mail separately and reject blocked senders during the SMTP handshake before storage. |
| Operaciones de agente | CLI commands and MCP tools let agents create mailboxes, read conversation threads, and send replies, while mailbox management APIs configure receive policies and sender allowlists. | AgentMail: Hosted MCP tools create inboxes, read threads, send messages, and reply. Nylas: Agent Account CLI and API workflows provision accounts, send mail, and read replies using an account grant identifier. |
¿Qué ventaja tiene Bird?
Bird pairs its own MTA and IP-reputation network with campaign management and programmable agent inboxes. Engineering and growth teams work from the same REST API, SDKs, CLI, and MCP tools rather than stitching together separate transactional, marketing, and inbound vendors.
| Capacidad | Ventaja de Bird | Qué evaluar |
|---|---|---|
| Herencia en entregabilidad | Bird acquired SparkPost in 2021, and its sending network delivers roughly 40% of the world’s commercial email. | Bird’s Momentum MTA adapts throughput per mailbox provider in real time, while dedicated IPs and pools automate IP warm-up with shared-pool overflow. |
| Herramientas de agente | Bird’s hosted MCP server lets AI agents send email and manage domains, templates, and inboxes directly, while the Bird CLI and typed SDKs bring the same operations to terminals and application code. | Test the exact operations your automation or coding agent will run, including error recovery. Bird’s CLI outputs structured JSON and semantic exit codes so scripts and agents can branch reliably. |
| Buzones | Bird’s agent mailboxes give support workflows and AI agents dedicated email addresses, grouped conversation threads, quote-stripped replies, and sender filtering. | Decide whether your app only needs a stateless inbound webhook or a persistent inbox that tracks threads, stores messages, and blocks unwanted senders before waking your agent. |
¿Para qué es adecuado cada proveedor?
Weigh each provider’s core strength against the operational work it leaves to your team. Every head-to-head guide below compares the sending stack, agent tooling, inbound handling, migration steps, and published pricing.
Bird
Correo transaccional, campañas y buzones de agentes. Bird runs its own global sending infrastructure for transactional receipts and audience-targeted marketing broadcasts, and also licenses PowerMTA for on-premises delivery. Programmable agent mailboxes handle inbound threads, replies, and sender rules in the same workspace. When migrating, map your current provider’s stream separation and suppression lists into Bird.
SendGrid
Subusuarios y flujos de envío establecidos SendGrid subusers partition sending reputation, permissions, and credit caps across business units, and its CLI supports basic terminal sends. Because Inbound Parse forwards raw parsed email to your webhook without storing threads, inventory your inbound webhook handlers before migrating.
Amazon SES
Email dentro de una aplicación AWS The AWS CLI and AWS MCP Server let teams manage identities, configuration sets, and sends using existing IAM roles and SigV4 authentication. SES receiving rules drop incoming mail into S3 buckets or SNS topics, leaving parsing, storage, and reply threading to your own AWS services.
Mailgun
Enrutamiento de mensajes entrantes Mailgun Routes match incoming mail against header or recipient expressions and trigger forwarding or temporary storage. Its open-source MCP server exposes sending, domain, route, template, and deliverability tools, though you host and run the server process yourself.
Postmark
Separación de correo transaccional y de difusión Postmark Message Streams keep transactional mail and broadcast traffic on separate IP pools by default. Postmark provides an open-source MCP server and CLI for templates and delivery inspection, while its inbound webhook posts parsed JSON to your app without hosted mailbox state.
MailerSend
Operaciones de correo electrónico a través de CLI y MCP MailerSend’s hosted MCP server and CLI cover email and SMS sending alongside domain, template, webhook, and suppression management. When migrating, keep temporary On Hold soft-bounce suppressions separate so 72-hour holds do not become permanent blocks.
Brevo
Operaciones de contactos y campañas Brevo’s MCP server connects AI tools to CRM contacts, campaigns, templates, and domains, while its CLI focuses on OAuth app setup and local testing. Note that batch retry deduplication applies to the entire batch payload for 30 minutes.
Resend
Plantillas React y recepción Resend’s Node SDK renders React Email components directly on send, and its receiving API exposes inbound content, attachments, and reply headers. Resend also offers a hosted MCP server and CLI for sending and domain management.
¿Cómo se comparan los planes de correo electrónico publicados?
Expand any provider below to compare Bird’s live rates against that vendor’s published plans at matching monthly volumes. Pay attention to how billing works: a Bird funding deposit stays in your workspace as spendable balance across channels, whereas a bundled tier charges a flat fee for a fixed monthly email cap. Each competitor figure links to its pricing page with the date it was verified.
Bird / Amazon SES
Los planes de pago de Bird añaden un depósito mensual a un saldo compartido. Los envíos transaccionales usan la tarifa del plan. La comparación siguiente supone que el saldo se usa solo para email; el resto del uso y los complementos tienen un coste adicional.
Veredicto de precios: Not comparable. Para cada volumen incluido de la competencia, el gasto mensual estimado de Bird es el mayor entre el depósito del plan de pago y el uso transaccional a su tarifa publicada. El plan Free usa su volumen incluido cuando está disponible. Los depósitos son saldo que puedes gastar, no una tarifa adicional. Solo los volúmenes y monedas equivalentes con tarifas completas influyen en el veredicto.
| Nivel de Bird | Volumen incluido en planes de pago | Bird | Amazon SES |
|---|---|---|---|
| Free | 1,000 | Planes de 4 en este volumenExpande para comparar cada opción y sus condiciones de facturación. Volumen coincidente À la carte outbound email: $0.10 / 1,000 emails 1,000 emails No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately. según lo publicado Volumen coincidente Essentials: $0.16 per 1,000 emails 1,000 emails Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page. según lo publicado Volumen coincidente Pro: $0.22 per 1,000 emails 1,000 emails Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page. según lo publicado Volumen coincidente Enterprise: $0.23 per 1,000 emails 1,000 emails Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page. según lo publicado | |
| Email Startup | Ninguno en planes de pago | €15 / month to shared balance (EUR); email usage charged separately $15 / month to shared balance (USD); email usage charged separately | Ver planes publicados a continuación |
| Email Growth | Ninguno en planes de pago | €250 / month to shared balance (EUR); email usage charged separately $250 / month to shared balance (USD); email usage charged separately | Ver planes publicados a continuación |
| Email Scale 1,000 | Ninguno en planes de pago | €1,000 / month to shared balance (EUR); email usage charged separately $1,000 / month to shared balance (USD); email usage charged separately | Ver planes publicados a continuación |
| Email Scale 2,500 | Ninguno en planes de pago | €2,500 / month to shared balance (EUR); email usage charged separately $2,500 / month to shared balance (USD); email usage charged separately | Ver planes publicados a continuación |
| Email Scale 5,000 | Ninguno en planes de pago | €5,000 / month to shared balance (EUR); email usage charged separately $5,000 / month to shared balance (USD); email usage charged separately | Ver planes publicados a continuación |
| Email Scale 10,000 | Ninguno en planes de pago | €10,000 / month to shared balance (EUR); email usage charged separately $10,000 / month to shared balance (USD); email usage charged separately | Ver planes publicados a continuación |
Amazon SES: Planes publicados
1,000 emails
No monthly fee; uncapped usage rate, not a monthly allowance; attachment data charged separately.
según lo publicado
1,000 emails
Usage rate for the 0–10M emails/month band, not a monthly allowance. No account fee; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.
según lo publicado
1,000 emails
Usage rate for the 0–10M emails/month band, not a monthly allowance. $105 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.
según lo publicado
1,000 emails
Usage rate for the 0–10M emails/month band, not a monthly allowance. $500 per account per region per month; attachment data charged separately. Tiered rates apply marginally; higher-volume rates are on the publisher page.
según lo publicado
Bird / Brevo
Los planes de pago de Bird añaden un depósito mensual a un saldo compartido. Los envíos transaccionales usan la tarifa del plan. La comparación siguiente supone que el saldo se usa solo para email; el resto del uso y los complementos tienen un coste adicional.
Veredicto de precios: Mixed by volume. Para cada volumen incluido de la competencia, el gasto mensual estimado de Bird es el mayor entre el depósito del plan de pago y el uso transaccional a su tarifa publicada. El plan Free usa su volumen incluido cuando está disponible. Los depósitos son saldo que puedes gastar, no una tarifa adicional. Solo los volúmenes y monedas equivalentes con tarifas completas influyen en el veredicto.
| Emails por mes | Plan de Bird y gasto mensual necesario | Brevo |
|---|---|---|
| 5,000 | Email Startup: €15 (EUR) | |
| 50,000 | Email Startup: €18.000000000000004 (EUR) | |
| 100,000 | Email Startup: €36.00000000000001 (EUR) | |
| 250,000 | Email Startup: €90.00000000000001 (EUR) | |
| 500,000 | Email Startup: €180.00000000000003 (EUR) | |
| 150,000 | Email Startup: €54.00000000000001 (EUR) | Professional: €499.00/month 150,000 emails Monthly billing; optional add-ons excluded. según lo publicado |
| 1,000,000 | Email Startup: €360.00000000000006 (EUR) | Professional: €999.00/month 1,000,000 emails Monthly billing; optional add-ons excluded. según lo publicado |
| 3,000,000 | Email Scale 1,000: €1,000 (EUR) | Professional: €1,713.00/month 3,000,000 emails Monthly billing; optional add-ons excluded. según lo publicado |
Brevo: Planes publicados
150,000 emails
Monthly billing; optional add-ons excluded.
según lo publicado
250,000 emails
Monthly billing; optional add-ons excluded.
según lo publicado
500,000 emails
Monthly billing; optional add-ons excluded.
según lo publicado
1,000,000 emails
Monthly billing; optional add-ons excluded.
según lo publicado
3,000,000 emails
Monthly billing; optional add-ons excluded.
según lo publicado
Bird / MailerSend
Los planes de pago de Bird añaden un depósito mensual a un saldo compartido. Los envíos transaccionales usan la tarifa del plan. La comparación siguiente supone que el saldo se usa solo para email; el resto del uso y los complementos tienen un coste adicional.
Veredicto de precios: Mixed by volume. Para cada volumen incluido de la competencia, el gasto mensual estimado de Bird es el mayor entre el depósito del plan de pago y el uso transaccional a su tarifa publicada. El plan Free usa su volumen incluido cuando está disponible. Los depósitos son saldo que puedes gastar, no una tarifa adicional. Solo los volúmenes y monedas equivalentes con tarifas completas influyen en el veredicto.
| Emails por mes | Plan de Bird y gasto mensual necesario | MailerSend |
|---|---|---|
| 500 | Free: $0 (USD) | |
| 5,000 | Email Startup: $15 (USD) | |
| 50,000 | Email Startup: $20 (USD) | |
| 100,000 | Email Startup: $40 (USD) | |
| 250,000 | Email Startup: $100 (USD) | |
| 500,000 | Email Startup: $200 (USD) | |
| 1,000,000 | Email Startup: $400 (USD) | |
| 2,000,000 | Email Startup: $800 (USD) |
MailerSend: Planes publicados
Bird / Mailgun
Los planes de pago de Bird añaden un depósito mensual a un saldo compartido. Los envíos transaccionales usan la tarifa del plan. La comparación siguiente supone que el saldo se usa solo para email; el resto del uso y los complementos tienen un coste adicional.
Veredicto de precios: Bird. Para cada volumen incluido de la competencia, el gasto mensual estimado de Bird es el mayor entre el depósito del plan de pago y el uso transaccional a su tarifa publicada. El plan Free usa su volumen incluido cuando está disponible. Los depósitos son saldo que puedes gastar, no una tarifa adicional. Solo los volúmenes y monedas equivalentes con tarifas completas influyen en el veredicto.
| Emails por mes | Plan de Bird y gasto mensual necesario | Mailgun |
|---|---|---|
| 50,000 | Email Startup: $20 (USD) | |
| 100,000 | Email Startup: $40 (USD) | |
| 250,000 | Email Startup: $100 (USD) | |
| 500,000 | Email Startup: $200 (USD) | |
| 1,000,000 | Email Startup: $400 (USD) | |
| 2,500,000 | Email Startup: $1,000 (USD) |
Mailgun: Planes publicados
Bird / Postmark
Los planes de pago de Bird añaden un depósito mensual a un saldo compartido. Los envíos transaccionales usan la tarifa del plan. La comparación siguiente supone que el saldo se usa solo para email; el resto del uso y los complementos tienen un coste adicional.
Veredicto de precios: Mixed by volume. Para cada volumen incluido de la competencia, el gasto mensual estimado de Bird es el mayor entre el depósito del plan de pago y el uso transaccional a su tarifa publicada. El plan Free usa su volumen incluido cuando está disponible. Los depósitos son saldo que puedes gastar, no una tarifa adicional. Solo los volúmenes y monedas equivalentes con tarifas completas influyen en el veredicto.
| Emails por mes | Plan de Bird y gasto mensual necesario | Postmark |
|---|---|---|
| 100 | Free: $0 (USD) | |
| 10,000 | Email Startup: $15 (USD) | Basic: $15.00/mo 10,000 emails Monthly billing; volume covers emails sent and received. según lo publicado |
| 50,000 | Email Startup: $20 (USD) | Basic: $55.00/mo 50,000 emails Monthly billing; volume covers emails sent and received. según lo publicado |
| 125,000 | Email Startup: $50 (USD) | Basic: $115.00/mo 125,000 emails Monthly billing; volume covers emails sent and received. según lo publicado |
| 300,000 | Email Startup: $120 (USD) | Basic: $245.00/mo 300,000 emails Monthly billing; volume covers emails sent and received. según lo publicado |
| 700,000 | Email Startup: $280 (USD) | Basic: $455.00/mo 700,000 emails Monthly billing; volume covers emails sent and received. según lo publicado |
| 1,500,000 | Email Startup: $600 (USD) | Basic: $775.00/mo 1,500,000 emails Monthly billing; volume covers emails sent and received. según lo publicado |
Postmark: Planes publicados
10,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
50,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
125,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
300,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
700,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
1,500,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
10,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
50,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
125,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
300,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
700,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
1,500,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
10,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
50,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
125,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
300,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
700,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
1,500,000 emails
Monthly billing; volume covers emails sent and received.
según lo publicado
Bird / Resend
Los planes de pago de Bird añaden un depósito mensual a un saldo compartido. Los envíos transaccionales usan la tarifa del plan. La comparación siguiente supone que el saldo se usa solo para email; el resto del uso y los complementos tienen un coste adicional.
Veredicto de precios: Mixed by volume. Para cada volumen incluido de la competencia, el gasto mensual estimado de Bird es el mayor entre el depósito del plan de pago y el uso transaccional a su tarifa publicada. El plan Free usa su volumen incluido cuando está disponible. Los depósitos son saldo que puedes gastar, no una tarifa adicional. Solo los volúmenes y monedas equivalentes con tarifas completas influyen en el veredicto.
| Emails por mes | Plan de Bird y gasto mensual necesario | Resend |
|---|---|---|
| 3,000 | Email Startup: $15 (USD) | |
| 50,000 | Email Startup: $20 (USD) | |
| 100,000 | Email Startup: $40 (USD) | |
| 200,000 | Email Startup: $80 (USD) | |
| 500,000 | Email Startup: $200 (USD) | |
| 1,000,000 | Email Startup: $400 (USD) | |
| 2,500,000 | Email Startup: $1,000 (USD) |
Resend: Planes publicados
Bird / SendGrid
Los planes de pago de Bird añaden un depósito mensual a un saldo compartido. Los envíos transaccionales usan la tarifa del plan. La comparación siguiente supone que el saldo se usa solo para email; el resto del uso y los complementos tienen un coste adicional.
Veredicto de precios: Not comparable. Para cada volumen incluido de la competencia, el gasto mensual estimado de Bird es el mayor entre el depósito del plan de pago y el uso transaccional a su tarifa publicada. El plan Free usa su volumen incluido cuando está disponible. Los depósitos son saldo que puedes gastar, no una tarifa adicional. Solo los volúmenes y monedas equivalentes con tarifas completas influyen en el veredicto.
SendGrid: Planes publicados
50,000 emails
Monthly billing; published volume range is 50,000 to 100,000 emails. Taxes and overages may apply.
según lo publicado
100,000 emails
Monthly billing; published volume range is 100,000 to 2,500,000 emails. Taxes and overages may apply.
según lo publicado
¿Cómo elegir un API de correo electrónico?
¿Cómo compara Bird los proveedores de API de correo?
¿Cómo comparo los costes de las API de email?
¿Cómo debo probar una API de correo antes de cambiar?
¿Cómo migro a la API de correo de Bird?
Ponlo en práctica.
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