Sponge

Financial Services · AI Agents

Overview

Give AI agents their own wallets to pay, invest, and earn. Sell your services to agents via x402 and MPP with no code changes. The financial infrastructure for the agent economy.

Funding and backers

Backers
2
Y Combinator, Multimodal Ventures
Momentum
15/100
in the news
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jan 2026 Website went live first capture in the Wayback Machine Jan 2026 Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 6%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
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Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors2
128 portfolio companies: Wand AI, Zerodrift, Taphero and 125 more
Y CombinatorVia a fund
6310 portfolio companies

News

News noteノート 2 months ago
Sponges don't dry and the sink gets cluttered. 5 sponge holders chosen by placement styleYu-ga
When you place a dish sponge on the edge of the sink, water remains at the bottom, and detergent bottles are more likely to tip over. Even if you decide on a place to put it, it can be difficult to use due to the direction of drainage or interference with
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Report
News the Guardian 2 months ago
Scientists find nine new sponge species in glimpse of Alaska's deep-sea diversity
But their habitat is threatened by bottom trawling in the region and Trump's plan to expand seafloor mining
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News My Regular Scientific Explorations 3 months ago
AI on a piece of sponge?
Letters imprinted on the same piece of sponge in it's compressed region (shown by the darker region) In 2020, I was grappling with a piece of sponge. I had come across an unusual effect in a …
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Report
News Kotaku 7 months ago
8 Ridiculous Things I Utterly Love About Vampire Crawlers
Sure, it's an exquisitely well designed deckbuilder, but what about the sparkly colors?
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News The New Yorker 7 months ago
Can Sponge Cities Save Us from the Coming Floods?
In an era of climate crisis, rainstorms are descending with sudden and unprecedented force. Eric Klinenberg considers the future of flood control and the
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News Nature 10 months ago
What were the first animals? The fierce sponge-jelly battle that just won't end
For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are calling for a more harmonious approach.
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News Healthline 12 months ago
How to Wash Your Makeup Sponge
Learn how often to wash your makeup sponge, which products to use, and why it's important.
Read more
Report
Show more news

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
San Francisco United States
HQ