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Sponge

Sponge

Private
San Francisco, CaliforniaFinTechhttps://paysponge.com/

Last Round

Accelerator

Feb 23, 2026

Est. Valuation

$7.14M

Total Funding Raised

$1M

Company Overview

Sponge is a financial software company that operates a payments infrastructure platform tailored to the agent economy, enabling AI agents to hold and spend funds autonomously.

Sector

FinTech

Verticals

Digital Payments, Digital Wallets, NLP & Conversational AI

Business Model

B2B2C

Customer Profile

Payment Processing Fee, Usage-Based SaaS

AI Layer

Infrastructure

Keywords

AI agent paymentsautonomous paymentsagent-to-business commerceagent economyagent walletcustodial walletAI agent infrastructurepayment gatewayagent-native financefinancial middlewareprogrammatic paymentsusage-based billingagent infrastructurex402MPPMCP

Historical Pricing

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Caplight Momentum Score

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Sponge Comparables

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Sponge comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Agentcard
87%
Nevermined
84%
Skyfire
84%

Sponge Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
AcceleratorFeb 23, 2026
AcceleratorJan 1, 2026

Sponge Investors

Notable investors and investment history

Sponge investors
InvestorRounds
Y CombinatorAccelerator

Sponge Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Sponge Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

HeadquartersSan Francisco, California
Employee Range5
Year Founded2026
Last FundingFeb 23, 2026

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