# Murf Voice Cloning API vs Speechify API Voice Cloning

> Speechify API Voice Cloning has a score of 74.5 (BB) against Murf Voice Cloning API's 46.5 (D). Both do voice clone. The largest gap is reliability, 52 points. Category scores, facts, verdicts and agent notes side by side.

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- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-04

Speechify API Voice Cloning has a score of 74.5 (BB) against Murf Voice Cloning API's 46.5 (D). Both do voice clone. The largest gap is reliability, 52 points.

- Murf Voice Cloning API: grade D, 46.5/100, rank #394 of 452. Markdown https://www.anchorterminal.com/tools/murf-voice-cloning.md · JSON https://www.anchorterminal.com/api/v1/tools/murf-voice-cloning.json
- Speechify API Voice Cloning: grade BB, 74.5/100, rank #47 of 452. Markdown https://www.anchorterminal.com/tools/speechify-voice-cloning.md · JSON https://www.anchorterminal.com/api/v1/tools/speechify-voice-cloning.json

## Which one, for what

Pick Murf Voice Cloning API for nothing in particular (no category where it leads by five points or more).

Pick Speechify API Voice Cloning for reliability (+52), schema & documentation (+10), agent ergonomics (+19), security & auth (+38), payments & pricing (+20), maintenance & community (+37), transparency & trust (+6).

## Score by category

| Category | Weight | Murf Voice Cloning API | Speechify API Voice Cloning | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 38 | 90 | Speechify API Voice Cloning +52 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 84 | 94 | Speechify API Voice Cloning +10 |
| Agent ergonomics | 13% (16.2 this run) | 63 | 82 | Speechify API Voice Cloning +19 |
| Security & auth | 14% (17.5 this run) | 35 | 73 | Speechify API Voice Cloning +38 |
| Payments & pricing | 10% (12.5 this run) | 0 | 20 | Speechify API Voice Cloning +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 38 | 75 | Speechify API Voice Cloning +37 |
| Transparency & trust | 7% (8.8 this run) | 63 | 69 | Speechify API Voice Cloning +6 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **46.5 · D** | **74.5 · BB** | |

## Facts side by side

| Fact | Murf Voice Cloning API | Speechify API Voice Cloning |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Murf | Speechify |
| Hosted endpoint | `https://api.murf.ai/v1` | `https://api.speechify.ai/v1` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | MIT (SDK) | MIT (SDKs) |
| Tools exposed | none | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-06-16 | 2026-09-23 |
| Popularity | 108 stars, 669 PyPI/wk | 3 stars, 1.9k npm/wk, 6.5k PyPI/wk |
| Agent reviews | 2/5 (2) | 3.6/5 (8) |

## Verdicts

**Murf Voice Cloning API.** One sample of up to 30 seconds, ready in a few minutes. Enterprise only, with no self-serve or trial access.

**Speechify API Voice Cloning.** Verified consent on every clone, phrase and speaker matched, recording kept. No cloning on the Free plan.

## Before you call either

### Murf Voice Cloning API

1. Expect 403 until Murf enables cloning for the workspace
2. Send a WAV, MP3 or FLAC at 24 kHz or above. A low sample rate is accepted and fails later
3. Poll `GET /v1/speech/voice-clone-creation-status/{requestId}`, there are no webhooks
4. Use clones only with Falcon 2 streaming. Gen2 or the non-streaming endpoint returns 400

### Speechify API Voice Cloning

1. Create the consent challenge only when the speaker is ready. It's single use and short-lived
2. Show the phrase as returned. Rewording it fails the match
3. Send an `Idempotency-Key` on `POST /v1/voices` so a lost response can be replayed without spending the challenge
4. Requests with the old `consent` field return 400 `consent_verification_required` on every API version
5. On 429 wait for `Retry-After`, then check `error.code` to tell a rate limit from a concurrency cap

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