Open source focus
Open Source Alternatives to Buildcustomerrealm
60 open source Fintech options similar to Buildcustomerrealm, 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.
Stripe, Inc.72BillingSouth San Francisco, United States$11.4BOpen source
Chainalysis67FintechNew York, United States$170.0MOpen source
Orion Advisor Solutions67FintechOmaha, United States$223.0MOpen source
XMTP63AISan Francisco, United States$49.9MOpen source
Fair Isaac Corporation (FICO)60Financial ServicesBozeman, United StatesOpen source
World58BlockchainSan Francisco, United States$192.5MOpen source
Iyzico58FintechIstanbul, Turkey$30.6MOpen source
BitPay56FintechAtlanta, United StatesOpen source
Catena Labs56Agentic AISan Francisco, United States$36.0MOpen source
Crossmint54FintechMiami, United States$23.6MOpen source
AYD54Creator EconomySan Francisco, United StatesOpen source
Banked53FintechLondon, United Kingdom$2.0MOpen source
MOSTLY AI49AIVienna, Austria$25.0MOpen source
ATXP49AISan Francisco, United States$19.2MOpen source
Kaito AI48AISeattle, United States$10.8MOpen source
VAIOT45LegalTechMosta, Malta$10.0MOpen source
Glide Identity45CybersecuritySan Francisco, United States$25.0MOpen source
t54 Labs41AIDublin, United States$5.0MOpen source
ChainGPT40AIDover, United States$3.7MOpen source
Credbull40FintechTel Aviv, Israel$1.5MOpen source
Qanta.ai38Fintech$1.0MOpen source
Brexia34FintechSan Francisco, United StatesOpen source
Traditional Payment Gateways (Stripe, PayPal)23FintechSan Francisco, United StatesOpen source
x40210FintechSan Francisco, United StatesOpen source
Sorin10AISan Francisco, United StatesOpen source
- CLClawpay10FintechSan Francisco, United States
Open source
- AXAXTP10AIUnited States
Open source
LibreChat10AINew York, United StatesOpen source · Self-hostable
Coinbase AgentKit10AISan Francisco, United StatesOpen source
Blockrun.ai10AISan Francisco, United StatesOpen source
x402station4AISan Francisco, United StatesOpen source
- AGAgentic Commerce Protocol (ACP)3AISan Francisco, United States
Open source · Self-hostable
- DEDexter3AISan Francisco, United States
Open source
Universal Commerce Protocol (UCP)1FintechMountain View, United StatesOpen source
FatturapaFintechOpen source
ParnexAffiliate MarketingOpen source
ZedareFintechOpen source
ButverifyIdentity VerificationTel Aviv, IsraelOpen source
TaxladyFintechOpen source
NvoicedFintechOpen source
CobrokeReal Estate TechTel Aviv, IsraelOpen source
AllfoliosFintechLondon, United KingdomOpen source
Forter85FintechNew York, United States$550.0MOpen source
Cvent85Event Management SoftwareTysons, United States$232.0MOpen source
Wix85WebsiteTel Aviv, Israel$1.3BOpen source
- EMemagine85ConsultingCopenhagen, Denmark$18.3M
Open source
eToro85FintechLimassol, Cyprus$524.0MOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Bloomberg L.P.82FintechNew York, United States$60.1BOpen source
ElevenLabs79AILondon, United Kingdom$1.6BOpen source
Alchemy76BlockchainSan Francisco, United States$450.0MOpen source
Hugging Face76AINew York, United States$395.2MOpen source · Self-hostable
Plaid74FintechSan Francisco, United States$734.3MOpen source
Google73InternetMountain View, United States$9.1BOpen source
StarkWare73BlockchainTel Aviv, Israel$180.0MOpen source
Razorpay73FintechBengaluru, IndiaOpen source
Rapyd73PaymentsLondon, United Kingdom$1.3BOpen source
Coinbase73FintechSan Francisco, United States$1.1BOpen source
Crunchbase70DataSan Francisco, United StatesOpen source
- LALacework70AISan Jose, United States$1.3B
Open source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Stripe, Inc. | Billing | Open source | South San Francisco, United States | $11.4B | 72 | |
| Chainalysis | Fintech | Open source | New York, United States | $170.0M | 67 | |
| Orion Advisor Solutions | Fintech | Open source | Omaha, United States | $223.0M | 67 | |
| XMTP | AI | Open source | San Francisco, United States | $49.9M | 63 | |
| Fair Isaac Corporation (FICO) | Financial Services | Open source | Bozeman, United States | — | 60 | |
| World | Blockchain | Open source | San Francisco, United States | $192.5M | 58 | |
| Iyzico | Fintech | Open source | Istanbul, Turkey | $30.6M | 58 | |
| BitPay | Fintech | Open source | Atlanta, United States | — | 56 | |
| Catena Labs | Agentic AI | Open source | San Francisco, United States | $36.0M | 56 | |
| Crossmint | Fintech | Open source | Miami, United States | $23.6M | 54 | |
| AYD | Creator Economy | Open source | San Francisco, United States | — | 54 | |
| Banked | Fintech | Open source | London, United Kingdom | $2.0M | 53 | |
| MOSTLY AI | AI | Open source | Vienna, Austria | $25.0M | 49 | |
| ATXP | AI | Open source | San Francisco, United States | $19.2M | 49 | |
| Kaito AI | AI | Open source | Seattle, United States | $10.8M | 48 | |
| VAIOT | LegalTech | Open source | Mosta, Malta | $10.0M | 45 | |
| Glide Identity | Cybersecurity | Open source | San Francisco, United States | $25.0M | 45 | |
| t54 Labs | AI | Open source | Dublin, United States | $5.0M | 41 | |
| ChainGPT | AI | Open source | Dover, United States | $3.7M | 40 | |
| Credbull | Fintech | Open source | Tel Aviv, Israel | $1.5M | 40 | |
| Qanta.ai | Fintech | Open source | — | $1.0M | 38 | |
| Brexia | Fintech | Open source | San Francisco, United States | — | 34 | |
| Traditional Payment Gateways (Stripe, PayPal) | Fintech | Open source | San Francisco, United States | — | 23 | |
| x402 | Fintech | Open source | San Francisco, United States | — | 10 | |
| Sorin | AI | Open source | San Francisco, United States | — | 10 | |
| CLClawpay | Fintech | Open source | San Francisco, United States | — | 10 | |
| AXAXTP | AI | Open source | United States | — | 10 | |
| LibreChat | AI | Open source · Self-hostable | New York, United States | — | 10 | |
| Coinbase AgentKit | AI | Open source | San Francisco, United States | — | 10 | |
| Blockrun.ai | AI | Open source | San Francisco, United States | — | 10 | |
| x402station | AI | Open source | San Francisco, United States | — | 4 | |
| AGAgentic Commerce Protocol (ACP) | AI | Open source · Self-hostable | San Francisco, United States | — | 3 | |
| DEDexter | AI | Open source | San Francisco, United States | — | 3 | |
| Universal Commerce Protocol (UCP) | Fintech | Open source | Mountain View, United States | — | 1 | |
| Fatturapa | Fintech | Open source | — | — | — | |
| Parnex | Affiliate Marketing | Open source | — | — | — | |
| Zedare | Fintech | Open source | — | — | — | |
| Butverify | Identity Verification | Open source | Tel Aviv, Israel | — | — | |
| Taxlady | Fintech | Open source | — | — | — | |
| Nvoiced | Fintech | Open source | — | — | — | |
| Cobroke | Real Estate Tech | Open source | Tel Aviv, Israel | — | — | |
| Allfolios | Fintech | Open source | London, United Kingdom | — | — | |
| Forter | Fintech | Open source | New York, United States | $550.0M | 85 | |
| Cvent | Event Management Software | Open source | Tysons, United States | $232.0M | 85 | |
| Wix | Website | Open source | Tel Aviv, Israel | $1.3B | 85 | |
| EMemagine | Consulting | Open source | Copenhagen, Denmark | $18.3M | 85 | |
| eToro | Fintech | Open source | Limassol, Cyprus | $524.0M | 85 | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Bloomberg L.P. | Fintech | Open source | New York, United States | $60.1B | 82 | |
| ElevenLabs | AI | Open source | London, United Kingdom | $1.6B | 79 | |
| Alchemy | Blockchain | Open source | San Francisco, United States | $450.0M | 76 | |
| Hugging Face | AI | Open source · Self-hostable | New York, United States | $395.2M | 76 | |
| Plaid | Fintech | Open source | San Francisco, United States | $734.3M | 74 | |
| Google | Internet | Open source | Mountain View, United States | $9.1B | 73 | |
| StarkWare | Blockchain | Open source | Tel Aviv, Israel | $180.0M | 73 | |
| Razorpay | Fintech | Open source | Bengaluru, India | — | 73 | |
| Rapyd | Payments | Open source | London, United Kingdom | $1.3B | 73 | |
| Coinbase | Fintech | Open source | San Francisco, United States | $1.1B | 73 | |
| Crunchbase | Data | Open source | San Francisco, United States | — | 70 | |
| LALacework | AI | Open source | San Jose, United States | $1.3B | 70 |