Open source focus
Open Source Alternatives to Cresta
60 open source Agentic AI options similar to Cresta, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
KaaiaConversational AITel Aviv, IsraelOpen source
Ultravox.ai52Agentic AISan Francisco, United States$10.0MOpen source
Magick AI28Agentic AIOpen source
Mirrorfly11Agentic AIOpen source
Chaty.ai0AI AgentsGold Coast, Australia$1.0MOpen source
Deepgram65NeocloudSan Francisco, United States$177.1MOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
LlamaIndex64Agentic AIUnited StatesOpen source
PineAI63Artificial IntelligenceSan Francisco, USA$63.0MOpen source
Fiddler Labs, Inc.62MLOpsMountain View, United States$39.0MOpen source
FingerprintJS61Customer ServiceSan Francisco, United States$87.0MOpen source
Quotient AI56Artificial IntelligenceBoston, United States$5.5MOpen source
- AGAgentDesk / BrowserTools54Recruitment Tech$17.0M
Open source
Arthur51Agentic AISan Francisco, United States$10.0MOpen source
Saperly43Voice AISan Francisco, United States$2.0MOpen source
Cekura40Agentic AITel Aviv, IsraelOpen source
Fiducia AI18Artificial IntelligenceNew York, United StatesOpen source
Lionwire17Voice AIOpen source
Google Cloud AI8AI Foundation & ComputeMountain View, United StatesOpen source
GetpointVoice AITel Aviv, IsraelOpen source
- CallrichVoice AI
Open source
IbodycamVoice AIOpen source
ElevenLabs79AILondon, United Kingdom$1.6BOpen source
Mastra75Agentic AISan Francisco, United States$35.5MOpen source · Self-hostable
Coframe70AI-Managed PlatformSan Francisco, United States$9.3MOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Candid Intelligence, Inc.63Construction TechSan Francisco, United States$207.0MOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Rasa Technologies GmbH62Conversational AISan Francisco, United States$73.4MOpen source
Agency58Agentic AISan Francisco, United States$20.0MOpen source
Steel.dev58Developer ToolsTel Aviv, Israel$17.0MOpen source · Self-hostable
Cluely58Agentic AISan Francisco, United StatesOpen source
xpander.ai57Artificial IntelligenceTel Aviv, Israel$3.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
Auto-GPT56Agentic AI$12.0MOpen source · Self-hostable
Kata.ai55Customer ServiceJakarta, Indonesia$3.5MOpen source
giniX54Generative AITel Aviv, IsraelOpen source
WSO254Artificial IntelligencePalo Alto, USA$63.0MOpen source · Self-hostable
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
Merge Labs54Agentic AISan Francisco, United States$24.0MOpen source
Voca.ai54SpeechTel Aviv, Israel$6.1MOpen source
M Magical54Artificial IntelligenceSan Francisco, United StatesOpen source
Modal Labs52Agentic AISan Francisco, United States$693.0MOpen source
- COCognigy50Voice AgentDüsseldorf, Germany$156.5M
Open source
Coqui48Voice AIBerlin, Germany$2.0MOpen source · Self-hostable
SageOx47Artificial IntelligenceSeattle, USA$15.0MOpen source
- SASales Interaction Agent47Agentic AISan Francisco, United States$5.0M
Open source
Mendral46Agentic AISan Francisco, United States$15.0MOpen source
vibecode.dev44Agentic AISan Francisco, United States$1.5MOpen source
CiaoDott43HealthcareMilan, Italy$1.6MOpen source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Tryagentically40Agentic AISan Francisco, United StatesOpen source
Mycroft AI38Voice AssistantKansas City, United States$4.0MOpen source · Self-hostable
LettaAI31Artificial IntelligenceSan Francisco, United States$1.5MOpen source
PromptQL31Artificial IntelligenceSan Francisco, United StatesOpen source · Self-hostable
Parlant27AI AgentsTel Aviv, IsraelOpen source · Self-hostable
Hume AI25Voice AIUnited StatesOpen source
Emdash24Agentic AISan Francisco, United StatesOpen source
Regai24Customer ServiceLondon, United KingdomOpen source
Vibranium Dome23AI AgentsOpen source · Self-hostable
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Kaaia | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Ultravox.ai | Agentic AI | Open source | San Francisco, United States | $10.0M | 52 |
| Magick AI | Agentic AI | Open source | — | — | 28 |
| Mirrorfly | Agentic AI | Open source | — | — | 11 |
| Chaty.ai | AI Agents | Open source | Gold Coast, Australia | $1.0M | 0 |
| Deepgram | Neocloud | Open source | San Francisco, United States | $177.1M | 65 |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 64 |
| LlamaIndex | Agentic AI | Open source | United States | — | 64 |
| PineAI | Artificial Intelligence | Open source | San Francisco, USA | $63.0M | 63 |
| Fiddler Labs, Inc. | MLOps | Open source | Mountain View, United States | $39.0M | 62 |
| FingerprintJS | Customer Service | Open source | San Francisco, United States | $87.0M | 61 |
| Quotient AI | Artificial Intelligence | Open source | Boston, United States | $5.5M | 56 |
| AGAgentDesk / BrowserTools | Recruitment Tech | Open source | — | $17.0M | 54 |
| Arthur | Agentic AI | Open source | San Francisco, United States | $10.0M | 51 |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 |
| Cekura | Agentic AI | Open source | Tel Aviv, Israel | — | 40 |
| Fiducia AI | Artificial Intelligence | Open source | New York, United States | — | 18 |
| Lionwire | Voice AI | Open source | — | — | 17 |
| Google Cloud AI | AI Foundation & Compute | Open source | Mountain View, United States | — | 8 |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — |
| Voice AI | Open source | — | — | — | |
| Ibodycam | Voice AI | Open source | — | — | — |
| ElevenLabs | AI | Open source | London, United Kingdom | $1.6B | 79 |
| Mastra | Agentic AI | Open source · Self-hostable | San Francisco, United States | $35.5M | 75 |
| Coframe | AI-Managed Platform | Open source | San Francisco, United States | $9.3M | 70 |
| Vapi | Voice AI | Open source | San Francisco, United States | $74.3M | 65 |
| Candid Intelligence, Inc. | Construction Tech | Open source | San Francisco, United States | $207.0M | 63 |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 |
| Rasa Technologies GmbH | Conversational AI | Open source | San Francisco, United States | $73.4M | 62 |
| Agency | Agentic AI | Open source | San Francisco, United States | $20.0M | 58 |
| Steel.dev | Developer Tools | Open source · Self-hostable | Tel Aviv, Israel | $17.0M | 58 |
| Cluely | Agentic AI | Open source | San Francisco, United States | — | 58 |
| xpander.ai | Artificial Intelligence | Open source | Tel Aviv, Israel | $3.0M | 57 |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 |
| Auto-GPT | Agentic AI | Open source · Self-hostable | — | $12.0M | 56 |
| Kata.ai | Customer Service | Open source | Jakarta, Indonesia | $3.5M | 55 |
| giniX | Generative AI | Open source | Tel Aviv, Israel | — | 54 |
| WSO2 | Artificial Intelligence | Open source · Self-hostable | Palo Alto, USA | $63.0M | 54 |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 |
| Merge Labs | Agentic AI | Open source | San Francisco, United States | $24.0M | 54 |
| Voca.ai | Speech | Open source | Tel Aviv, Israel | $6.1M | 54 |
| M Magical | Artificial Intelligence | Open source | San Francisco, United States | — | 54 |
| Modal Labs | Agentic AI | Open source | San Francisco, United States | $693.0M | 52 |
| COCognigy | Voice Agent | Open source | Düsseldorf, Germany | $156.5M | 50 |
| Coqui | Voice AI | Open source · Self-hostable | Berlin, Germany | $2.0M | 48 |
| SageOx | Artificial Intelligence | Open source | Seattle, USA | $15.0M | 47 |
| SASales Interaction Agent | Agentic AI | Open source | San Francisco, United States | $5.0M | 47 |
| Mendral | Agentic AI | Open source | San Francisco, United States | $15.0M | 46 |
| vibecode.dev | Agentic AI | Open source | San Francisco, United States | $1.5M | 44 |
| CiaoDott | Healthcare | Open source | Milan, Italy | $1.6M | 43 |
| BLBlip | Voice AI | Open source | São Paulo, Brazil | $10.0M | 41 |
| Tryagentically | Agentic AI | Open source | San Francisco, United States | — | 40 |
| Mycroft AI | Voice Assistant | Open source · Self-hostable | Kansas City, United States | $4.0M | 38 |
| LettaAI | Artificial Intelligence | Open source | San Francisco, United States | $1.5M | 31 |
| PromptQL | Artificial Intelligence | Open source · Self-hostable | San Francisco, United States | — | 31 |
| Parlant | AI Agents | Open source · Self-hostable | Tel Aviv, Israel | — | 27 |
| Hume AI | Voice AI | Open source | United States | — | 25 |
| Emdash | Agentic AI | Open source | San Francisco, United States | — | 24 |
| Regai | Customer Service | Open source | London, United Kingdom | — | 24 |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 |