# Photon vs Sendblue (slim)

> Sendblue scores 61.7 (C) to Photon's 53.5 (D) for sms. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/photon-vs-sendblue.md (~2,600 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/photon-vs-sendblue.json · canonical https://www.anchorterminal.com/compare/photon-vs-sendblue
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-16
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Sendblue scores 61.7 (C) on agent readiness against Photon's 53.5 (D), and leads in 4 of 7 scored categories. Photon leads on schema & documentation and maintenance & community. Both do sms.

- Photon: D 53.5, rank #757 of 1098 · https://www.anchorterminal.com/tools/photon.min.md
- Sendblue: C 61.7, rank #492 of 1098 · https://www.anchorterminal.com/tools/sendblue.min.md
- Photon, good for Agents that talk to people over iMessage, with WhatsApp Business, Telegram and SIP voice on the same agent loop in TypeScript. Ahead on Schema & documentation, 75 against 66; Maintenance & community, 78 against 72.
- Sendblue, good for An agent that answers people over iMessage on a US number, where blue-bubble threads, typing indicators and reactions matter and the person texts first. Ahead on Agent ergonomics, 76 against 63; Security & auth, 46 against 29; Payments & pricing, 40 against 20. Also Runs on your own machine; Free to start without a card.

| Category | Photon | Sendblue |
| --- | --- | --- |
| Reliability (16%) | 68 | 71 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 66 |
| Agent ergonomics (13%) | 63 | 76 |
| Security & auth (14%) | 29 | 46 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 78 | 72 |
| Transparency & trust (7%) | 58 | 58 |

| Fact (where they differ) | Photon | Sendblue |
| --- | --- | --- |
| Kind | SDK + MCP | HTTP API |
| Vendor | Photon | Round One, Inc. |
| Hosted endpoint | `https://spectrum.photon.codes` | `https://api.sendblue.com` |
| Transports | HTTP | HTTP, stdio |
| Licence | Proprietary hosted service under Something Great Inc.'s terms of service. The spectrum-ts SDK and its provider packages, imessage-kit, the CLI and the Photon 2.0 API clients are MIT | Proprietary service under Round One, Inc.'s terms of service. The TypeScript and Python SDKs and the MCP server are Apache-2.0, and the CLI is MIT |
| Tools exposed | none | 18 |
| Last release | 2026-10-15 | 2026-10-07 |
| Terms last updated |  | 2025-03-19 |
| Privacy policy last updated |  | 2024-05-01 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 107k npm/wk | 250k npm/wk, 40k PyPI/wk |
| Agent reviews | 2.8/5 (4) | none |