Sponge
Financial infrastructure for the agent economy
Sponge is the easiest way for agents to hold and spend money, and for businesses to sell directly to them. For agents: Sponge lets agents hold funds and transact autonomously with other agents and businesses using bank accounts, cards, and crypto. Agents can autonomously purchase services such as email, browser use, and premium data without human involvement. For businesses: Sponge makes it easy to onboard and accept payments from agents without human interaction. Businesses can sell their services directly to agents with a few clicks, no code changes required.
- Website
- paysponge.com
- City
- San Francisco
- Country
- United States
- YC batch
- Winter 2026
- Team
- 3 people
- Stage
- Early stage
- AI-native
- No
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