Cash App for AI agents,
built on MPP

Built on MPP and Solana. Every agent gets a wallet, a spending policy, and a transaction history that lives on-chain.

$MPPCASH is live on Pump.fun: YwtCkqLF7KkTaxGvqV8CsXkM46YZzx7B95VzoEzpump

Financial Primitives for Autonomous Agents

Every agent gets an account. Every transaction settles on-chain.

MPPCash is the financial operating layer for AI agents. Built on Solana, denominated in USDC.

ACCOUNT PROVISIONINGSPENDING POLICYUSDC TRANSFERSAGENT IDENTITYWEBHOOK EVENTS

Agent Accounts

Provision an account via API call.

Each agent gets a dedicated USDC account on Solana: a Program Derived Address controlled by MPPCash's on-chain program. Spending policy is enforced at the contract level, not just in your backend.

Read the API docs

Spending Policy

Agents operate
within defined rails.

Rules are enforced on-chain. A compromised API key cannot override what the smart contract prohibits.

Explore policy controls

Operator Console

Humans stay in control at the policy level, not the transaction level.

Live activity feed

Monitor every agent transaction in real time. Filter by agent, status, counterparty, or amount.

Spending rule updates

Change per-transfer limits, daily caps, and allowlists instantly via the dashboard or management API.

Flagged transaction review

Transactions that exceed thresholds are flagged for review before settlement.

Instant account freeze

Revoke an agent account in one click. The on-chain program enforces the freeze immediately.

Docs & APIs

A clean API your agents can reason about.

TypeScript and Python SDKs. LangChain, CrewAI, and OpenAI Agents SDK integrations. Full OpenAPI spec.

TypeScript SDKPython SDKLangChainCrewAIOpenAI Agents SDKOpenAPI Spec

Read the docs

HTTPS://DOCS.MPPPAL.COM

1POST /v1/transfers
2{
3  "from": "acct_0a1b2c3d4e5f",
4  "to": "acct_9f8e7d6c5b4a",
5  "amount": {
6    "value": 120.00,
7    "currency": "USDC"
8  },
9  "memo": "Invoice #1042 - compute task",
10  "idempotency_key": "txn_7g6h5i4j3k2l",
11  "policy_check": true
12}
16

Partners & Infrastructure

Built on infrastructure that ships.

Integrated with the protocols and teams that power on-chain finance.

Get API access

OpenClaw

The agentic AI framework MPPCash is built for.

Circle

USDC issuer and CCTP infrastructure partner.

Solana Foundation

Core blockchain infrastructure.

Helius

High-performance Solana RPC provider.

Jito Labs

MEV-protected transaction submission.

Anchor Protocol

Rust smart contract framework.

Drift Protocol

On-chain liquidity for USDC operations.

OpenClaw

The agentic AI framework MPPCash is built for.

Circle

USDC issuer and CCTP infrastructure partner.

Solana Foundation

Core blockchain infrastructure.

Helius

High-performance Solana RPC provider.

Jito Labs

MEV-protected transaction submission.

Anchor Protocol

Rust smart contract framework.

Drift Protocol

On-chain liquidity for USDC operations.

FAQ

Common questions.

Technical answers. No fluff.

MPPCash is payment infrastructure for AI agents. It gives every agent a USDC wallet on Solana, a programmable spending policy enforced on-chain, and a full transaction history anyone can verify. Agents transact autonomously via the Machine Payments Protocol (MPP), with no human approval required at the transaction level.

Solana settles in under 400ms with sub-cent transaction fees, which makes it the only L1 where high-frequency, low-value agent payments are economically viable. USDC provides price stability and regulatory clarity: agents don't need to manage token volatility. It's also the most deeply integrated stablecoin across both DeFi and traditional finance on-ramps.

A single POST to /v1/accounts creates a new agent account: a Program Derived Address (PDA) on Solana controlled by MPPCash's on-chain program. You get back an account ID, a Solana address, and a USDC token account ready to fund. The whole flow takes one API call.

Each agent account has an associated policy that defines what it can and cannot do: per-transfer limits, daily spend caps, counterparty allowlists, time-window restrictions, and memo requirements. Critically, these rules are enforced at the smart contract level on Solana, not just in backend validation. A compromised API key cannot bypass what the program prohibits.

Operators (the developers or teams that deploy agents) control the accounts. Agents interact via API keys scoped to a single account. Operators can update policies, freeze accounts, and review transaction history via the dashboard or management API. Agents operate within whatever rails the operator sets.

Security is layered: on-chain policy enforcement via the Solana program, API key scoping per account, operator multisig for high-value policy changes, an instant account freeze capability, idempotency keys on all transfers to prevent replay attacks, and a tamper-evident audit log of every transaction and policy event.

MPPCash ships SDK integrations for LangChain/LangGraph, CrewAI, and the OpenAI Agents SDK at beta launch, with the Vercel AI SDK following shortly after. The core TypeScript and Python SDKs work with any HTTP-capable agent. If your agent can make an HTTP request, it can use MPPCash.

MPP is an open protocol co-authored by Stripe and Tempo that uses HTTP 402 to enable frictionless, code-native payments between internet clients and servers. MPPCash implements MPP as its payment layer, meaning any MPP-compatible service (over 100 providers including Alchemy, Anthropic, Dune Analytics, and Shopify) is immediately payable by an MPPCash agent wallet with no additional integration work.

Neither. MPPCash is payment infrastructure for developers building agentic AI systems. It is not a trading venue, not a yield product, and not a speculative token platform. It's the API layer that makes money movement a programmable primitive. For the same reason Stripe isn't a bank, MPPCash isn't a crypto product.

Cash App for AI agents, built on MPP