Who it is for
A developer or operator running an agent that holds and spends its own crypto balance.
Sponge
Agent wallet balances, portfolio, and USDC funding links
Overview
What Sponge does
Sponge deals with wallets belonging to an AI agent rather than to a person. Balances can be read out, and the portfolio behind them viewed, from the conversation.
Funding is handled with links. The app creates an onramp link for adding USDC to the wallet, which keeps the payment step outside the chat itself.
Sample prompts cover the three things the listing describes: a portfolio summary, a balance check, and a request to add a fixed dollar amount. Nothing further about how the wallet operates is set out in the record.
What stands out
The wallet in question belongs to an agent, a narrower framing than general crypto portfolio apps use.
Availability
Where Sponge is listed
Sponge is listed in the ChatGPT apps directory only. Sponge Inc. has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
In the ChatGPT apps directory
- Developer
- Sponge Inc.
- Filed under
- Finance
- Listed since
- June 2026
- Authentication
- Authenticates when installed
- Website
- paysponge.com
- Policies published
- Privacy policy · Terms of service
- Official listing
- Open in ChatGPT
- Snapshot
- August 2026
Example prompts from the listing
- Show my Sponge portfolio.
- What's my wallet balance?
- Fund my wallet with $100
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Allowance
Spend-limited virtual cards for agent purchases
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This is an independent catalogue entry compiled by Node8 from Sponge's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Sponge Inc., and inclusion here is not an endorsement.
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