sipgate.io
sipgate.io: A free-entry telephony API for teams building call and messaging workflows. Ranked #27 of 53 in Voice APIs by our editors (7.0/10); pricing: Free plan; best for small teams adding telephony to applications.
At a glance
- Editor score7.0 / 10
- PricingFree plan
- Best forSmall teams adding telephony to applications
- Free planYes
- Inbound callingYes
- Founded2004 · Düsseldorf, Germany
- Facts checked23 Sep 2026
Where it wins
- Free REST API usage across the S, M and L plans
- Controls inbound and outbound calls, including hold, mute and transfer
- Push API webhooks plus Node.js library and developer examples
Where it doesn't
- Requires an existing sipgate account
- Additional webhook calls are charged on S, M and L
- XL pricing is available only on request
Our verdict on sipgate.io
sipgate.io is sipgate’s developer platform for adding telephony to applications. It is aimed at teams that want APIs for call handling and related communications, rather than a standalone calling interface. The REST API covers telephony resources and sessions, outbound call initiation, SMS, fax, and account and telephony management. For incoming calls, developers can use XML actions; the Push API sends incoming and outgoing call events to a customer-controlled URL. The service is cloud-based and is offered as an add-on to a sipgate account, so that account requirement is central to whether it fits a project.
Call control is the most distinctive part of the offering. The API supports real-time hold, mute, transfer, DTMF, announcements and recording controls, with recording retrieval also available. That gives developers a way to build workflows around both call events and actions during a call. The published materials also include a Node.js library and developer examples. Teams planning around another language should check the available integration path against their requirements: the listed SDK languages are JavaScript, Java and Python, while the specifically named library is for Node.js.
Pricing is freemium, with free REST API usage on plans S, M and L, each including 100 webhook calls. Additional calls are priced at 4.9 euro cents on S, 2.9 euro cents on M and 1.9 euro cents on L. XL is priced on request, includes 10,000 webhook calls and offers a reduced cost per additional webhook. Support channels are email and documentation. sipgate.io makes the most sense for a small team already using sipgate that wants programmable calling and can estimate webhook volume; a team seeking telephony APIs without a sipgate account, or one that needs published XL pricing, should consider alternatives.
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sipgate.io pricing
All 4 sipgate.io plans and prices →
sipgate.io fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Inbound calling | Yes |
| Outbound calling | Yes |
| Phone number support | Yes |
| SIP support | Not verified |
| Call recording | Yes |
| Concurrent call limit | Not verified |
| SDK languages | JavaScript, Java, Python |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan (source) |
| Website | sipgate.io |
| Facts checked | 23 Sep 2026 |
Alternatives to sipgate.io
- Vonage Voice APIA broad voice API for building PSTN, SIP, WebRTC, IVR, and AI call workflows.9.4
- Twilio Elastic SIP TrunkingA focused SIP-to-PSTN service with secure trunking and pay-as-you-go voice charges.9.2
- Bandwidth Voice APIA broad PSTN voice API for calling, media control, transcription, and AI streaming.9.1
See all sipgate.io alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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