MPP explorer
The Machine Payments Protocol (Stripe + Tempo, March 2026) is the second open standard for machine-to-machine payments. This is the live MPP service catalog, indexed from the protocol's public registry — and OpenSpender is being built to speak both standards.
139
mpp services indexed
137
active
9
top categories
tempo · stripe · evm
payment methods
11 matching
| service | categories | payment methods | status |
|---|---|---|---|
Allium — System of record for onchain finance. Real-time blockchain data: token prices, wallet balances, transactions, PnL, and SQL explorer. agents.allium.so | blockchaindata | tempo | active |
Codex — Comprehensive onchain data API for tokens and prediction markets. Real-time prices, charts, trades, and wallet analytics across 80+ networks via GraphQL. graph.codex.io | blockchaindata | tempo | active |
Doma — Domain registration on the Doma blockchain. Instantly register .com, .xyz, .ai, .io, and .net domains. mpp.doma.xyz | webblockchain | tempo | active |
Dune — Query across raw transaction data, decoded smart contract events, stablecoin flows, RWA tracking, protocol analytics, DeFi positions, NFT activity, blockchain m api.dune.com | datablockchain | tempo | active |
Nansen — Blockchain analytics and smart money intelligence. Token data, wallet profiling, DEX trades, PnL, and flow analysis across multiple chains. api.nansen.ai | blockchaindata | tempo | active |
Alchemy — Blockchain data APIs including Core RPC APIs, Prices API, Portfolio API, and NFT API across 100+ chains. mpp.alchemy.com | blockchaindata | tempostripe | active |
Conduit — EVM JSON-RPC access to Conduit Nodes across 60+ networks including Tempo, Plume, and Polygon Katana. mpp.conduit.xyz | blockchaindata | tempo | active |
Tempo API — Official Tempo API at api.tempo.xyz for indexed TIP-20 balances, transfers, account activity, blocks, transactions, receipts, stablecoin exchange quotes and ord api.tempo.xyz | blockchaindata | tempo | beta |
Quicknode — Quicknode Core Node API for 80+ blockchains and 140+ networks. mpp.quicknode.com | blockchain | tempo | active |
Megapot — Global internet lottery tickets. AI agents can purchase Megapot tickets and check ticket status through MPP. megapot.mpp.paysponge.com | webblockchain | tempo | active |
Tempo RPC — Tempo blockchain JSON-RPC access (mainnet and testnet). rpc.mpp.tempo.xyz | blockchain | tempo | active |
x402 vs MPP
| x402 | MPP | |
|---|---|---|
| author / steward | Coinbase → Linux Foundation | Stripe + Tempo |
| mechanism | HTTP 402 challenge, pay-per-request | IETF Payment HTTP auth, session-based |
| rails | USDC (Base, Solana, more) | USDC on Tempo, card via Visa, Lightning |
| accounts | none — wallet is identity | Stripe compliance stack built in |
| transports | HTTP | HTTP, MCP, JSON-RPC |
| compatibility | MPP is backwards-compatible with x402 — MPP clients can pay x402 services, so x402-first services reach both worlds | |
OpenSpender + MPP
The OpenSpender gateway ships x402-first (reachable by MPP clients via backwards compatibility). Native MPP endpoints — session payments, card rails, MCP transport — are on the roadmap. Protocol sources: mpp.dev · specifications.