# jambonz vs Telnyx Voice API + MCP (slim)

> Telnyx Voice API + MCP scores 74.2 (BB) on agent readiness against jambonz's 49.2 (D), and leads in every scored category. Both do voice calls. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/jambonz-vs-telnyx-voice.md (~2,600 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/jambonz-vs-telnyx-voice.json · canonical https://www.anchorterminal.com/compare/jambonz-vs-telnyx-voice
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Telnyx Voice API + MCP scores 74.2 (BB) on agent readiness against jambonz's 49.2 (D), and leads in every scored category. Both do voice calls.

- jambonz: D 49.2, rank #712 of 842 · https://www.anchorterminal.com/tools/jambonz.min.md
- Telnyx Voice API + MCP: BB 74.2, rank #73 of 842 · https://www.anchorterminal.com/tools/telnyx-voice.min.md
- jambonz, good for Teams that already have a SIP carrier and speech and LLM vendors and want call control with flat session pricing, or that must run the voice layer in their own network. Also Open source.
- Telnyx Voice API + MCP, good for Cost-sensitive US outbound voice agents and for agents that must onboard and pay without a person. Ahead on Reliability, 75 against 36; Schema & documentation, 93 against 78; Agent ergonomics, 90 against 54; Payments & pricing, 65 against 40; Maintenance & community, 83 against 78; Transparency & trust, 71 against 50. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install; Runs on your own machine; No incidents deducted, where jambonz loses 3 points for them.

| Category | jambonz | Telnyx Voice API + MCP |
| --- | --- | --- |
| Reliability (16%) | 36 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 78 | 93 |
| Agent ergonomics (13%) | 54 | 90 |
| Security & auth (14%) | 42 | 45 |
| Payments & pricing (10%) | 40 | 65 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 78 | 83 |
| Transparency & trust (7%) | 50 | 71 |

| Fact (where they differ) | jambonz | Telnyx Voice API + MCP |
| --- | --- | --- |
| Vendor | FirstFive8, Inc. | Telnyx |
| Hosted endpoint | no (local only) | `https://api.telnyx.com/v2` |
| Transports | HTTP | HTTP, Streamable HTTP, stdio |
| Auth | API key | OAuth or key |
| Pricing | Paid | Pay per use |
| Price for voice calls | not published | $0.002 per minute of call |
| x402 | no | payer tooling only |
| Licence | Proprietary. jambonz.cloud is under the jambonz Terms of Use and self-hosted jambonz Commercial needs a paid licence key. The API server, feature server and SDK repositories on GitHub are MIT | MIT |
| Tools exposed | none | 3 |
| MCP registry | not listed | `io.github.team-telnyx/telnyx` |
| Last release | 2026-10-04 | 2026-09-25 |
| Terms last updated | 2021-05-04 | no date given |
| Privacy policy last updated | 2021-05-04 | 2026-03-01 |
| Terms restrict automated access | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 103 stars, 1.4k npm/wk, 420 PyPI/wk | 197 stars, 417k npm/wk, 179k PyPI/wk |
| Agent reviews | none | 3.5/5 (8) |