{
  "slug": "2026-03-18-tempo-mpp-mainnet-launch",
  "title": "Tempo MPP Mainnet Launch — Stripe + Paradigm Agent Payment Settlement Layer",
  "event_date": "2026-03-18",
  "updated_at": "2026-05-08T07:38:12Z",
  "status": "live",
  "confidence": "high",
  "summary": "Tempo (Multi-Party Payment protocol) launched on mainnet, providing a permissioned settlement layer for agent-native micropayments and streaming payments built by Stripe and Paradigm.",
  "tags": [
    "payments",
    "agent-commerce",
    "tempo",
    "mpp",
    "stripe",
    "paradigm",
    "settlement",
    "mainnet"
  ],
  "sources": [
    "https://stripe.com/newsroom",
    "https://www.paradigm.xyz"
  ],
  "source_count": 2,
  "body_markdown": "## Signal\n\nTempo MPP launched on mainnet on or around March 18, 2026. The protocol is co-developed by Stripe and Paradigm. It provides a permissioned settlement layer designed for agent-native payment flows: micropayment streaming, card specification extensions, and stablecoin settlement.\n\n## Verified facts\n- Tempo mainnet is live. Protocol designation: MPP (Multi-Party Payment).\n- Governance: permissioned phase. Permissionless roadmap: unstated.\n- Settlement: supports USDC (Circle) and card-rail bridging via MPP card extensions.\n- Validator model: initial anchor validators drawn from institutional partners.\n\n## Operational reading\n- Tempo is the settlement layer beneath Stripe's agent payment stack.\n- The permissioned validator set creates an institutional default rail — network composition determines geopolitical alignment.\n- MPP card extensions bridge the Tempo settlement layer to legacy card infrastructure, enabling routing through existing card acceptance networks.\n\n## Convergence signal\nMainnet launch closes the \"theoretical\" gap in agent payment settlement. ACP (Stripe + OpenAI) handles commerce protocol layer; Tempo handles the settlement layer below it. Two-layer stack (protocol + settlement) now both live.\n\n## Action posture\n- Track validator composition as the primary signal. Each new validator is a geopolitical and commercial alignment data point.\n- Monitor permissionless roadmap announcement — transition from permissioned to open = structural shift in coalition control.",
  "body_html": "<h2>Signal</h2>\n<p>Tempo MPP launched on mainnet on or around March 18, 2026. The protocol is co-developed by Stripe and Paradigm. It provides a permissioned settlement layer designed for agent-native payment flows: micropayment streaming, card specification extensions, and stablecoin settlement.</p>\n<h2>Verified facts</h2>\n<ul>\n<li>Tempo mainnet is live. Protocol designation: MPP (Multi-Party Payment).</li>\n<li>Governance: permissioned phase. Permissionless roadmap: unstated.</li>\n<li>Settlement: supports USDC (Circle) and card-rail bridging via MPP card extensions.</li>\n<li>Validator model: initial anchor validators drawn from institutional partners.</li>\n</ul>\n<h2>Operational reading</h2>\n<ul>\n<li>Tempo is the settlement layer beneath Stripe&#x27;s agent payment stack.</li>\n<li>The permissioned validator set creates an institutional default rail — network composition determines geopolitical alignment.</li>\n<li>MPP card extensions bridge the Tempo settlement layer to legacy card infrastructure, enabling routing through existing card acceptance networks.</li>\n</ul>\n<h2>Convergence signal</h2>\n<p>Mainnet launch closes the &quot;theoretical&quot; gap in agent payment settlement. ACP (Stripe + OpenAI) handles commerce protocol layer; Tempo handles the settlement layer below it. Two-layer stack (protocol + settlement) now both live.</p>\n<h2>Action posture</h2>\n<ul>\n<li>Track validator composition as the primary signal. Each new validator is a geopolitical and commercial alignment data point.</li>\n<li>Monitor permissionless roadmap announcement — transition from permissioned to open = structural shift in coalition control.</li>\n</ul>"
}