Developer docs · InboxRatio Editorial
SendPulse email API: SDKs, docs and limits (2026)
Every link below points into SendPulse's official developer documentation and was checked on 10 September 2026. We record only what the vendor documents — a field we could not verify at the source is left out, never guessed.
From SendPulse's official docs · checked 10 September 2026
Docs, SDKs and limits
- Developer docs
- sendpulse.com/integrations/api
- API reference
- sendpulse.com/integrations/api/smtp
- SDK languages
- C#JavaNode.jsPHPPythonRubyAs listed in SendPulse's official SDK docs
- SMTP relay
- Yes · SMTP docs
- Webhooks
- Webhook docsWebhooks for transactional (SMTP) emails
- Rate limits
- REST API limits scale with the pricing plan — 1,000 requests per minute and 500,000 per day on Free, 2,000 per minute and 1,000,000 per day on Standard, 3,000 per minute and 3,000,000 per day on Enterprise; HTTP 429 beyond that. Source
- Pricing page
- sendpulse.com/pricing/smtp
From our feature matrix — documented by the vendor
API, SMTP and sending auth
- APIAPI on all tiers (comparison-table DOM-verified)
- SDKs / client librariesOfficial REST API client libraries on SendPulse GitHub for PHP, Python, Node.js, Java, Ruby and C#
- Public API docsPublic API integration docs (sendpulse.com/integrations/api)
- Webhooks'Transfer data using API or inbound webhooks'
- SMTP APISMTP service with API
- SMTP relaySMTP service product
- Transactional email'Transactional Emails' product
- SPF assistance'Set up an SPF record' + email authentication KB docs
- DKIM setup'Set up a DKIM signature' KB doc
- DMARC support'Set up DMARC policy record' KB doc
Features checked 10 September 2026. ✓ documented · ◐ limited or plan-gated · × documented as absent · — not documented. Documentation is not a measured result — see our methodology.
Pricing snapshot
Generated from our datasets — every value verified and dated
Frequently asked questions
Where are the official SendPulse API docs?
SendPulse's official developer documentation is at https://sendpulse.com/integrations/api, and the API reference is at https://sendpulse.com/integrations/api/smtp. Links checked on 10 September 2026.
Does SendPulse have an SDK for Python?
Yes. Python is among the SDK languages listed in SendPulse's official docs: C#, Java, Node.js, PHP, Python and Ruby (checked 10 September 2026).
Does SendPulse support SMTP relay?
Yes. SendPulse's official docs document SMTP relay sending: https://sendpulse.com/knowledge-base/smtp/setup-smtp-server (checked 10 September 2026).
What are the SendPulse API rate limits?
REST API limits scale with the pricing plan — 1,000 requests per minute and 500,000 per day on Free, 2,000 per minute and 1,000,000 per day on Standard, 3,000 per minute and 3,000,000 per day on Enterprise; HTTP 429 beyond that. Source: SendPulse's official documentation at https://sendpulse.com/integrations/api, checked 10 September 2026.
Does SendPulse offer webhooks?
Yes. SendPulse's official docs cover webhook event notifications (Webhooks for transactional (SMTP) emails): https://sendpulse.com/knowledge-base/smtp/smtp-webhooks (checked 10 September 2026).