# Signal House (signalhouse.io)

Provides SMS, MMS and voice APIs that send messages over 10DLC, toll-free and short-code numbers, plus SIP trunking and call analytics.

- Atlas card: https://inite.ai/en/atlas/signalhouse.io
- Site: https://signalhouse.io
- For: Businesses adding SMS, MMS and voice messaging to their CRM or applications
- Categories: voice
- Use not measured/100 · alive 100/100

## Used for

- Send local-number text campaigns to customers
- Run high-volume transactional messages on short codes
- Place programmable calls from browsers or SIP trunks

## Price

- from 1 USD/month, no free plan (read 2026-11-02 on https://signalhouse.io/pricing)

## For developers

- API docs: https://app2.signalhouse.io/docs
- MCP server: io.signalhouse/mcp (namespace; auth on 2026-11-02)
- Read 2026-11-02

## MCP server, measured daily

Server: https://mcp.signalhouse.io/mcp, checked every day since 2026-11-02 (3 checks).

- Answered: measuring, 3 daily checks so far
- Median first answer: 298 ms
- Sign-in: OAuth (the client signs the user in)
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: ccpa
- Read 2026-11-02

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Source: INITE Atlas, https://inite.ai/en/atlas/signalhouse.io. JSON: https://inite.ai/api/atlas/signalhouse.io. MCP: https://inite.ai/api/mcp (atlas_lookup).