Sponge: Financial infrastructure for the agent economy
The easiest way for agents to hold and spend money, and for businesses to sell directly to them
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
YC · launched Feb 17, 2026 · 32 upvotes (top 28%) · 0 views
Niche: ai hosting and infrastructure platforms · 74 launches, 5 in the last 7 days ▼ -38% · Explore this niche →
Category and tags
- Fintech
- Marketplace
- B2B
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 74 launches in ai hosting and infrastructure platforms →
Could you build this?
Partial A basic reverse proxy enforcing HTTP 402 payments with standard crypto wallet libraries can be vibe-coded, but building secure non-custodial agent key infrastructure, cross-chain liquidity settlement, and high-throughput micropayment gateways requires specialized cryptography and financial engineering.
What it would actually take: The stack involves a high-performance reverse proxy (e.g., Envoy/Rust/Go) intercepting HTTP requests, an MPC/KMS-based wallet service for agent key management, and smart contract or state-channel settlement layers across EVM and Solana. The hard parts include sub-second micropayment verification, key security against rogue agent execution, and robust cross-chain fund rebalancing. Requires senior blockchain engineers and security researchers.
Competitors
Other products that read as similar to this one : 2121 launches clear the similarity bar, closest 8 shown.
Attention rank: #551 of 2122 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 111 days after the earliest competitor.
- Mantyx · hn · 2026-03-26 · 11 upvotes · similarity 0.65
- agent-money-bench · github · 2026-11-02 · 38 upvotes · similarity 0.64
- wallet agent ai · ph · 2026-10-07 · 1 upvotes · similarity 0.61
- Rational - First Zero-human Accounting Firm · yc · 2026-09-09 · 22 upvotes · similarity 0.60
- Playbook — AI agents that run wealth management operations · yc · 2026-08-13 · 5 upvotes · similarity 0.58
- Aeternitas · github · 2026-11-02 · 37 upvotes · similarity 0.57
- Platos · hn · 2026-05-06 · 10 upvotes · similarity 0.57
- Async - Specialized AI agents, that automate costly work for small businesses. · yc · 2026-08-10 · 8 upvotes · similarity 0.57
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.