SendGrid

Best for: Regulated or enterprise workloads - compliance attestations and an enterprise plan; AI agents and automation - an agent-ready surface (MCP / llms.txt); Teams needing broad API coverage out of the box

Avoid if: You want to try it free before paying

Pricing model

Hybrid (base + usage) [2]sendgrid.com/en-us/solutions/add-ons/additional-dedicated-ip-address“Essentials. Starting $19.95/mo. Send 50,000 - 100,000 emails/mo ; Pro. Starting at $89.95/mo. Send 100,000 -”

Published pricing

✓ Yes [3]sendgrid.com/en-us/solutions/add-ons/additional-dedicated-ip-address“Free Trial. $0/mo for 60 days. Send 100 emails/day ; Essentials. Starting $19.95/mo. Send 50,000 - 100,000 emails/mo ; Pro. Starting at $89.95/mo. Send 100,000 -”

Free tier

✗ No [4]sendgrid.com/en-us/solutions/add-ons/additional-dedicated-ip-address“Free Trial. $0/mo for 60 days. Send 100 emails/day”en.wikipedia.org/wiki/SendGrid“In May 2025, Twilio retired SendGrid's free email API plan and free marketing campaigns plan”

Free tier details

Free Trial: $0/mo for 60 days, 100 emails/day. The permanent free plan was retired on May 27, 2025. [5]sendgrid.com/en-us/solutions/add-ons/additional-dedicated-ip-address“Free Trial. $0/mo for 60 days. Send 100 emails/day”en.wikipedia.org/wiki/SendGrid“In May 2025, Twilio retired SendGrid's free email API plan and free marketing campaigns plan”

Self-serve signup

✓ Yes [6]sendgrid.com/en-us/solutions/add-ons/additional-dedicated-ip-address“Free Trial. $0/mo for 60 days. Send 100 emails/day ; Essentials. Starting $19.95/mo. Send 50,000 - 100,000 emails/mo”

Requires sales call

✗ No [7]sendgrid.com/en-us/solutions/add-ons/additional-dedicated-ip-address“Free Trial. $0/mo for 60 days. Send 100 emails/day ; Essentials. Starting $19.95/mo. Send 50,000 - 100,000 emails/mo”

Enterprise plan

✓ Yes [8]dkgakr8jhpwe5.cloudfront.net/pricing“Premier. Custom Pricing.”sendgrid.com/en-us/solutions/add-ons/additional-dedicated-ip-address“Pro. Starting at $89.95/mo. Send 100,000 -”

• Transactional send
• Marketing / broadcasts
• Inbound parsing
• Templates
• Batch send
• Scheduled send
• SMTP relay
• Dedicated IP
• Email validation
• Analytics

Supported actions

send_email, cancel_scheduled_sends, provision_account, authenticate_domain, validate_email_address, manage_email_cname_records, manage_ip_addresses, manage_ip_pools, warmup_ip, brand_links, setup_reverse_dns, verify_sender, get_engagement_quality, manage_designs, get_email_activity, get_email_logs, track_events, get_stats, manage_webhooks, parse_inbound_email, manage_marketing_campaigns, manage_security_settings, manage_subusers, manage_teammates, manage_users, configure_single_sign_on, manage_suppressions, manage_templates [9]twilio.com/docs/sendgrid/api-reference“The SendGrid API reference provides detailed descriptions and code samples for every Twilio SendGrid API”docs.sendgrid.com/api-reference/“This API reference provides complete documentation for every endpoint and operation. For an overview of using SendGrid APIs, see the Getting Started section.”

Regions

Global, EU [10]twilio.com/docs/sendgrid/data-residency/faq“All Twilio emails comply with the General Data Protection Regulation (GDPR) of the European Union regardless of data residency.”forum.aspose.com/t/send-email-via-sendgrid-eu-baseurl/294395“I need to know how to change the BaseURL in the SendGrid configuration from https://api.sendgrid.com to https://api.eu.sendgrid.com”twilio.com/en-us/blog/products/data-residency-for-email-eu“Data Residency for Email in the EU is available now to eligible SendGrid customers on Pro and Premier Packages.”

Input types

application/json [11]twilio.com/docs/sendgrid/api-reference/mail-send/mail-send“Optimize emailing with SendGrid's Mail Send endpoint. Create dynamic templates, schedule emails, track click rates, and manage subscriptions efficiently.”

Output types

application/json [12]twilio.com/docs/sendgrid/api-reference“The SendGrid API reference provides detailed descriptions and code samples for every Twilio SendGrid API”

Webhooks

✓ Yes [13]twilio.com/docs/sendgrid/for-developers/tracking-events/event“Full Event Webhook event list and descriptions, event examples, and the objects each event contains.”

Sandbox / test mode

✗ No [14]twilio.com/docs/sendgrid/for-developers/sending-email/sandbox-mode“Enabling sandbox mode allows you to send a test email to ensure that your request body is formatted correctly without delivering the email to any of your”

SDK languages

C#, Go, Java, Node.js, PHP, Python, Ruby [15]twilio.com/docs/sendgrid/for-developers/sending-email/libraries“Send email and interact with SendGrid using your favorite language including Python, Go, Node.js, Ruby, PHP, Java, C#, Perl, Objective-C, and more.”

MCP server

✓ Yes [16]npmjs.com/package/@twilio-alpha/mcp“This is a Model Context Protocol server that exposes all of Twilio APIs.. Latest version: 0.7.0”twilio.com/en-us/blog/introducing-twilio-alpha-mcp-server“In this post, I'll tell you what MCP is, why it matters, and how we've started using it at Twilio to make building with our APIs easier and more scalable.”

SOC 2

SOC 2 Type II [17]luxsci.com/is-sendgrid-hipaa-compliant/“These facilities maintain certifications like SOC 2 Type II to show their commitment to security and operational excellence.”sendgrid.com/en-us/policies/security“Security certifications across Twilio, Segment, and SendGrid”

HIPAA

✗ No [18]twilio.com/docs/sendgrid/ui/account-and-settings/hipaa-compliant“No, we are not. SendGrid does not natively support HIPAA compliant data transmission and is not a HIPAA Eligible Service.”

GDPR

✓ Yes [19]sendgrid.com/en-us/resource/general-data-protection-regulation-2“Making available a GDPR-compliant Customer Data Processing Agreement for Twilio SendGrid's processing of personal data under the GDPR on behalf of its customers”twilio.com/docs/sendgrid/data-residency/faq“All Twilio emails comply with the General Data Protection Regulation (GDPR) of the European Union regardless of data residency.”

ISO 27001

✓ Yes [20]sendgrid.com/en-us/policies/security“Security certifications across Twilio, Segment, and SendGrid · ISO/IEC 27017:2015 certified · ISO/IEC 27018:2019 certified · ISO/IEC 27001:2013 certified.”

PCI DSS

✓ Yes [21]twilio.com/docs/sendgrid/ui/account-and-settings/pci-compliant“Is SendGrid PCI compliant? Yes! We do not store your credit card information anywhere in our systems. We can provide a PCI-DSS certificate upon request.”

Published SLA

✓ Yes [22]twilio.com/en-us/legal/service-level-agreement/twilio-apis“Customer will be eligible to request an API Service Credit equal to ten percent (10%).”

Rate limits

Mail Send: 'you may make up to 10,000 requests per second to our endpoint'; General API: 600 requests per minute per account [23]docs.sendgrid.com/for-developers/sending-email/v3-mail-send-faq/“There are rate limits on how frequently you can call the v3 Mail Send endpoint. Currently, you may make up to 10,000 requests per second to our endpoint.”twilio.com/docs/sendgrid/api-reference/how-to-use-the-sendgrid-v3-api/rate-limits“Explore SendGrid's Web API v3 features with this comprehensive guide. Understand rate limits, status codes, and more for efficient API calls.”apidog.com/blog/sendgrid-api-guide/“The primary rate limit for SendGrid API is: 600 requests per minute per account This limit applies to all SendGrid API endpoints collectively.”

Known restrictions

The total size of your email, including attachments, must be less than 30MB, The total number of recipients must be no more than 1,000 (across to, cc, bcc in all personalizations), The total length of custom arguments must be less than 10,000 bytes, Unicode encoding is not supported for the from field, The reply_to and reply_to_list properties are mutually exclusive, There is a limit of 1,000 reply_to_list emails per Mail Send request, The compressed data (gzip) must also be less than the 30MB maximum [24]experienceleague.adobe.com/en/docs/commerce-knowledge-base/kb/troubleshooting/miscellaneous/sendgrid-file-limitation“SendGrid has a system limitation of 30Mb size for email. It is recommended that you do not use attachments that exceeds 10Mb.”twilio.com/docs/sendgrid/api-reference/mail-send/mail-send

• Docs
• API reference
• Changelog
• Status page

Docs rendering: static

API style

rest

Base URL

https://api.sendgrid.com

Version

v3

Versioning

url

Stability

ga

Auth methods

api_key, basic

Idempotency keys

✗ No

Error format

vendor-specific

Webhook signing

ecdsa

Rate limit

10000 / second

SDKs

• C# SendGrid · repo · updated 2024-07 · 1,116★
• Go github.com/sendgrid/sendgrid-go · repo · updated 2025-08 · 1,057★
• Java com.sendgrid:sendgrid-java · repo · updated 2026-04 · 496★
• Node.js @sendgrid/mail · repo · updated 2026-05 · 3,051★
• PHP sendgrid/sendgrid · repo · updated 2025-02 · 1,526★
• Python sendgrid · repo · updated 2025-09 · 1,628★
• Ruby sendgrid-ruby · repo · updated 2024-08 · 638★

• Auth docs
• Quickstart
• MCP server
• Webhook events
• Deprecation policy

Launched

2009-01-01

Notable customers

Shopify

• Mailgun

  Mailgun is the all-in-one, intelligent email delivery platform trusted by businesses and loved by developers.

  Hybrid · free tier · public pricing · self-serve

• Mailjet

  The best email marketing software that's built for devs and loved by marketers.

  Hybrid · free tier · public pricing · self-serve

• Amazon Simple Email Service

  Amazon Simple Email Service (Amazon SES) is a cloud-based email service provider that can integrate into any application for high-volume email automation.

  Usage · public pricing · self-serve

• Brevo

  Brevo is the most intuitive all-in-one customer engagement platform: email and SMS marketing, automation, CRM, live chat, and transactional email.

  Hybrid · free tier · public pricing · self-serve

• MailerSend

  MailerSend is a powerful transactional email system built for developers but designed so non-tech teams can contribute without coding.

  Hybrid · free tier · public pricing · self-serve

• Postmark

  Fast, Reliable Email Delivery Service

  Hybrid · free tier · public pricing · self-serve

SendGrid alternatives · SendGrid vs Mailgun · All Email APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: sendgrid.com
2. ↑Pricing model: sendgrid.com
3. ↑Published pricing: sendgrid.com
4. ↑Free tier: sendgrid.com · en.wikipedia.org
5. ↑Free tier details: sendgrid.com · en.wikipedia.org
6. ↑Self-serve signup: sendgrid.com
7. ↑Requires sales call: sendgrid.com
8. ↑Enterprise plan: dkgakr8jhpwe5.cloudfront.net · sendgrid.com
9. ↑Supported actions: twilio.com · docs.sendgrid.com
10. ↑Regions: twilio.com · forum.aspose.com · twilio.com
11. ↑Input types: twilio.com
12. ↑Output types: twilio.com
13. ↑Webhooks: twilio.com
14. ↑Sandbox: twilio.com
15. ↑SDK languages: twilio.com
16. ↑MCP server: npmjs.com · twilio.com
17. ↑SOC 2: luxsci.com · sendgrid.com
18. ↑HIPAA: twilio.com
19. ↑GDPR: sendgrid.com · twilio.com
20. ↑ISO 27001: sendgrid.com
21. ↑PCI DSS: twilio.com
22. ↑Published SLA: twilio.com
23. ↑Rate limits: docs.sendgrid.com · twilio.com · apidog.com
24. ↑Known restrictions: experienceleague.adobe.com · twilio.com

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-15 Score Docs Quality: 25 → 45
2. 2026-06-15 Score Agent Friendliness: 30 → 40
3. 2026-06-15 API Reference URL: (none) → https://docs.sendgrid.com/docs/sendgrid/api-reference
4. 2026-06-15 Has Structured Data: (none) → No
5. 2026-06-15 Robots Allows Agents: (none) → Yes
6. 2026-06-09 Best For: Regulated or enterprise workloads — compliance attestations and an enterprise p… → Regulated or enterprise workloads - compliance attestations and an enterprise p…
7. 2026-06-09 Scoring Methodology: Scores are computed deterministically from this profile's published, sourced fi… → Scores are computed deterministically from this profile's published, sourced fi…
8. 2026-06-09 Score Agent Friendliness: (none) → 30
9. 2026-06-09 Score Pricing Transparency: (none) → 85
10. 2026-06-09 Score Setup Speed: (none) → 60
11. 2026-06-09 Score Docs Quality: (none) → 25
12. 2026-06-09 Score Procurement Friction: (none) → 85
13. 2026-06-09 Score Trust Readiness: (none) → 85
14. 2026-06-09 Best For: (none) → Regulated or enterprise workloads — compliance attestations and an enterprise p…
15. 2026-06-09 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
16. 2026-06-09 Avoid If: (none) → You want to try it free before paying
17. 2026-06-08 Status Page URL: (none) → https://status.sendgrid.com
18. 2026-06-08 Docs URL: (none) → https://docs.sendgrid.com
19. 2026-06-08 Rendering: (none) → static
20. 2026-06-08 Changelog URL: (none) → https://sendgrid.com/changelog
21. 2026-06-08 Llms Txt Present: (none) → No
22. 2026-06-07 SDK Packages: C#, Go, Java, Node.js, PHP, Python, Ruby → C#, Go, Java, Node.js, PHP, Python, Ruby
23. 2026-06-07 Summary Md: (none) → SendGrid, part of Twilio, is a high-scale email platform for transactional and …
24. 2026-06-07 Versioning Scheme: (none) → url
25. 2026-06-07 Stability: (none) → ga
26. 2026-06-07 Deprecation Policy URL: (none) → https://www.twilio.com/en-us/legal/tos
27. 2026-06-07 MCP URL: (none) → https://www.npmjs.com/package/@twilio-alpha/mcp
28. 2026-06-07 Quickstart URL: (none) → https://www.twilio.com/docs/sendgrid/for-developers/sending-email/api-getting-s…
29. 2026-06-07 Idempotency Supported: (none) → No
30. 2026-06-07 Error Format: (none) → vendor-specific
31. 2026-06-07 Webhook Signing: (none) → ecdsa
32. 2026-06-07 Webhook Events URL: (none) → https://www.twilio.com/docs/sendgrid/for-developers/tracking-events/event
33. 2026-06-07 Requires Verification: (none) → Yes
34. 2026-06-07 Starting Price Usd: (none) → 19.95
35. 2026-06-07 Price Basis: (none) → month
36. 2026-06-07 Launched At: (none) → 2009-01-01
37. 2026-06-07 Notable Customers: (none) → Shopify
38. 2026-06-07 Fields Not Found: (none) → ga_date
39. 2026-06-07 Name: Twilio SendGrid → SendGrid
40. 2026-06-07 Vendor Description: SendGrid's trusted email API and marketing campaigns platform → Email at scale, proven deliverability, and so much more
41. 2026-06-07 Primary Use Cases: transactional email, marketing email → transactional email, email marketing campaigns
42. 2026-06-07 Supported Actions: send_email, cancel_scheduled_sends, create_batch_id, validate_batch_id, retriev… → send_email, cancel_scheduled_sends, provision_account, authenticate_domain, val…
43. 2026-06-07 Supported Regions: US, EU → Global, EU
44. 2026-06-07 Input Types: JSON, SMTP relay, base64-encoded attachments, HTML, plain text → application/json
45. 2026-06-07 Output Types: JSON, CSV → application/json
46. 2026-06-07 SDK Packages: C#, Go, Java, Node.js, PHP, Python, Ruby → C#, Go, Java, Node.js, PHP, Python, Ruby
47. 2026-06-07 MCP Server Available: No → Yes
48. 2026-06-07 Pricing Model: subscription → hybrid
49. 2026-06-07 Free Tier Details: Free Trial. $0/mo for 60 days. Send 100 emails/day → Free Trial: $0/mo for 60 days, 100 emails/day. The permanent free plan was reti…
50. 2026-06-07 SLA URL: (none) → https://www.twilio.com/en-us/legal/service-level-agreement/twilio-apis

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/sendgrid \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/sendgrid/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

All the ways to contribute →