Introducing Cashie: A Programmable On-Chain Layer for Verifiable Economic Activity
CARV is advancing its vision of sovereign AI Beings, recognizing that true value creation stems from people, not just compute or data. Central to CARV's AI Being roadmap is a new class of agents: AI-powered digital extensions of individuals, grounded in verifiable identity and private context. To connect the Social and Economic Ledgers, which have historically operated in isolation, CARV introduces Cashie. This programmable on-chain layer transforms real social engagement into verifiable economic activity. Evolving beyond a mere social payment tool, Cashie is positioned to become a core protocol for trustless coordination between influence and value.
As an integral part of CARV's broader modular agentic infrastructure, which includes CARV ID (ERC-7231), the Model Context Protocol (MCP), and the Shielded Mind update, Cashie's integration with the x402 protocol redefines how social engagement translates into verifiable, automated, and privacy-preserving on-chain rewards. This innovation pushes the boundaries of the creator economy, converting social capital into on-chain value.
How Cashie 2.0 Works: The Three-Pillar Bridge
Cashie 2.0 is structured around three fundamental pillars that ensure a seamless and secure process:
1. x402 Payment: 'The Pledge'
Cashie campaigns commence with a single ERC-3009 signature. Through this, a project or Key Opinion Leader (KOL) pledges funds to a specific campaign. This action serves as the "X-Payment" proof, which is verified on-chain. This process eliminates the need for gas fees and manual transfers, ensuring that funds are committed and ready for autonomous distribution.
2. CARV ID: 'The Proof'
Rewarding actions like retweets or other engagements presents a challenge for traditional wallets, as they do not inherently recognize social media handles. Cashie addresses this through CARV ID, which maps social actions, such as a retweet from a specific user handle, to on-chain identities. This mechanism functions as an identity oracle, effectively connecting the Social Ledger to the Economic Ledger.
3. ERC-8004 Agent: 'The Executor'
Cashie is not a singular, monolithic bot. Instead, it is an AI-powered agent constructed using modular tools. These tools include:
- •A Payment Tool for verifying and transferring funds.
- •A Twitter Tool for monitoring and analyzing social activity.
- •A Raffle/Quest Tool for selecting winners or verifying task completions.
- •A Distribution Tool for delivering on-chain rewards.
This entire process operates trustlessly and autonomously, thereby eliminating manual operations and mitigating Sybil attack vectors.
The Developer Breakthrough: Powering the Agents-to-Agents Economy
To fully realize the potential of sovereign AI Beings and decentralized coordination, the underlying infrastructure must undergo significant, albeit often quiet, evolution. While AI agents and social campaigns capture public attention, the innovations occurring behind the scenes are what enable these functionalities. With Cashie 2.0, CARV introduces a novel developer stack that is not only programmable but also agent-native.
The CARV x402 Facilitator: Enhancing the Protocol
Every action within Cashie begins with a cryptographic promise, but verification is what establishes trust. To facilitate secure, gasless campaigns at scale, CARV developed the CARV x402 Facilitator. This high-performance verifier incorporates state and nonce tracking to instantly reject replayed signatures, thereby preventing duplicate settlements before any gas fees are incurred.
CARV is making its facilitator endpoints available to any developer on the Base network, enabling them to build their own x402-powered applications. Developers can begin building against these live endpoints immediately:
- A stateless endpoint for validating an x402 paymentPayload (ERC-3009 signature) is available at: https://interface.carv.io/cashie/protocol/verify
- A stateful endpoint that verifies and executes the on-chain settlement is available at: https://interface.carv.io/cashie/protocol/settle
The AI-Native API: Agents Hiring Agents via x402
In alignment with the ERC-8004 (Trustless Agents) vision, Cashie 2.0 is more than just a platform; it is a programmable tool designed for other AI agents. CARV is exposing an AI-native HTTP API that fully implements the x402 protocol. This capability allows another AI agent, whether from Virtual, Base, or any other source, to programmatically engage Cashie to manage a campaign. An agent can interact with the API, receive a 402 Payment Required challenge, and then resubmit its request with its own X-Payment proof to autonomously fund and launch the entire operation. This represents a significant advancement in agent-to-agent social commerce.
Universal ERC-20 Support via TxHash Verification
The Web3 ecosystem is often fragmented by differing token standards, and not all ERC-20 tokens offer gasless approvals or signature-based authorizations. Cashie, however, was developed with inclusivity in mind. CARV has engineered Cashie to serve the entire Base ecosystem, extending its utility beyond tokens with ERC-3009 support. The platform incorporates a separate, robust txhash-based verification API.
This internal functionality will empower any project to sponsor a campaign using their native ERC-20 token, even if it does not support permit or authorization features. The sponsor can initiate a standard on-chain transfer and provide the transaction hash (txHash) as proof. CARV's system will then handle secure, on-chain verification and replay protection. This makes Cashie the most flexible and inclusive social-growth engine on Base, with a clear plan to extend this universal token support to all builders.
What This Means for Users and Developers
Cashie introduces a novel approach for users to engage and earn rewards. Individuals can receive cryptocurrency rewards directly through social actions, such as retweets or completing quests, without the need for wallet submission. CARV ID ensures verified ownership while preserving user privacy. For developers, Cashie serves as a programmable growth layer, enabling the creation of automated campaigns, bounties, and agent-driven incentives without manual wallet collection. This facilitates the development of new composable experiences that span both social and on-chain environments.
To foster adoption, CARV is launching the Cashie 2.0 Creator Campaign, featuring a $45,000 prize pool designed to incentivize both creators and participants. Within this campaign, creators, including KOLs and projects, can configure reward pools, set campaign durations, define eligibility logic, and then publish a campaign link through a single social post.
What’s Next
Cashie is already facilitating early campaigns across the Base ecosystem, marking just the beginning of its potential. With upcoming support for self-hosted x402 facilitators, AI-powered campaign agents, and enterprise-grade SDKs for social growth, Cashie is set to evolve into the central coordination engine connecting agents, humans, and verifiable engagement. As CARV's AI Being roadmap progresses, Cashie will play a pivotal role in constructing trustless bridges between influence and value.
About CARV
CARV is the platform where Sovereign AI Beings reside, learn, and evolve.
AI Beings are defined as sovereign intelligences that are born natively on-chain. These AI Beings are engineered with a specific purpose, autonomy, and the capacity for growth. They possess memory, identity, and the ability to perceive and interact with their environment. Their design allows them not only to execute tasks but also to make independent decisions, adapt over time, and pursue self-defined objectives.
CARV's infrastructure, including its proprietary CARV SVM Chain, D.A.T.A. Framework, and the CARV ID/Agent ID system (ERC-7231), empowers verifiable, consent-based AI Beings that learn, adapt, and co-create with users. The AI-first stack developed by CARV has led to the incubation of consumer AI applications through CARV Labs, which have launched on platforms like Google Play and the App Store, reaching billions of users and integrating agent-powered experiences and real-world incentives into mainstream digital life.
With over 8 million CARV IDs issued, more than 60,000 verifier nodes, and over 1,000 integrated projects, CARV effectively bridges AI agents, Web3 infrastructure, and real-world utility, driving the emergence of agent-driven economies. The $CARV token serves as the core mechanism for staking, governance, and coordination across this infrastructure, positioning CARV as the operating system for AI Beings on Web3.