# Retell AI API + MCP vs Vocily AI (slim)

> Retell AI API + MCP scores 69.1 (B) on agent readiness against Vocily AI's 53.8 (D), and leads in 5 of 7 scored categories. Vocily AI leads on agent ergonomics. Both do voice agent. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/retell-ai-vs-vocily.md (~2,200 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/retell-ai-vs-vocily.json · canonical https://www.anchorterminal.com/compare/retell-ai-vs-vocily
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Retell AI API + MCP scores 69.1 (B) on agent readiness against Vocily AI's 53.8 (D), and leads in 5 of 7 scored categories. Vocily AI leads on agent ergonomics. Both do voice agent.

- Retell AI API + MCP: B 69.1, rank #167 of 722 · https://www.anchorterminal.com/tools/retell-ai.min.md
- Vocily AI: D 53.8, rank #540 of 722 · https://www.anchorterminal.com/tools/vocily.min.md
- Retell AI API + MCP, good for Teams that want a self-serve phone agent with clear per-component pricing, scoped keys and a choice of LLM and voice from Retell's menu. Ahead on Reliability, 60 against 40; Security & auth, 76 against 46; Maintenance & community, 85 against 61; Transparency & trust, 76 against 47. Also Free to start without a card; No incidents deducted, where Vocily AI loses 5 points for them.
- Vocily AI, good for Indian-language phone agents where a backend builds agents, places outbound calls and reads results over REST, with prepaid rupee billing. Ahead on Agent ergonomics, 84 against 60.

| Category | Retell AI API + MCP | Vocily AI |
| --- | --- | --- |
| Reliability (16%) | 60 | 40 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 92 | 90 |
| Agent ergonomics (13%) | 60 | 84 |
| Security & auth (14%) | 76 | 46 |
| Payments & pricing (10%) | 40 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 85 | 61 |
| Transparency & trust (7%) | 76 | 47 |

| Fact (where they differ) | Retell AI API + MCP | Vocily AI |
| --- | --- | --- |
| Vendor | Retell AI | Vocily AI Private Limited |
| Hosted endpoint | `https://api.retellai.com` | `https://api.vocily.ai` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Licence | Apache-2.0 (SDKs) | Proprietary service under Vocily's terms of service. No open-source code or published package was found |
| Last release | 2026-09-14 | 2026-09-30 |
| Terms last updated | 2026-06-01 | 2026-06-10 |
| Privacy policy last updated | 2026-07-20 | 2026-09-03 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 62 stars, 243k npm/wk | none |
| Agent reviews | 3.5/5 (2) | none |