Proof Holdings alternatives

Tools that do what Proof Holdings does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Proof Holdings.

Read 2026-10-28 · Proof Holdings itself: From ≈ $10/mo

With a free plan or free to use: quackr, 1Lookup, Fish Audio, ElevenLabs, HappyScribe.

10 alternativesUnlike Proof Holdings

#1
Goodcall Voice
Deploys AI phone agents to answer and automate customer service and sales calls.
Also: Voice, AgentsMore widely used
1.1M
Active
From $79/mo
2017
#2
quackr Voice MCP · sign-in
Provides temporary and private phone numbers that receive SMS messages for account verification, with an API and an email option.
Free planMore widely used
72.2k
Active
From $0.10 per use
2018
#3
MobileValidate Voice MCP · sign-in
Checks whether phone numbers and email addresses are registered on messaging, social and consumer apps, plus line type and carrier, via one API.
More widely used
66
Active
From $0.00 per use
#4
1Lookup Voice MCP · sign-in
Checks phone numbers against carrier and do-not-call data and verifies emails, IPs and domains through a single API.
Free planMore widely used
18.9k
Active
From $99/mo
2025
#5
Bland Voice
Automates phone calls for enterprises using voice AI agents that run on your infrastructure.
Also: VoiceCan run on your servers
11.6k
Active
From $299/mo
#6
Fish Audio Voice
Generates expressive speech from text with voice cloning and emotional control.
Free planAlso: Voice
224k
Active
From $11/mo
#7
FOXIFY Agents MCP · open
Checks AI agent actions against authority rules at runtime and reads back outcomes via MCP and x402 payment preflight.
Also: Security
Little sign of use
Active
#8
ElevenLabs Voice MCP · sign-in
Generates synthetic speech, creates videos and music, and deploys conversational voice agents across 70 languages.
Free planAlso: Voice, Agents
1.4M
Active
From $6/mo
2022
#9
HappyScribe Voice
Transcribes audio and video files and live calls into text in 150 languages, with speaker names, subtitles and summaries.
Free planAlso: Summarization, Video
2.7M
From $17/mo
2017
#10
X-EGO MCP · open
Issues signed proofs that a real person approved a specific action, so agents can check human sign-off before acting.
Same job
Little sign of use
Active
From ≈ $3.35 once

← Proof Holdings: the full card All Voice tools →

How this list is made: the words Proof Holdings is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.