DECK · 2026-07 Pre-seed / accelerator
The spend-governance layer for AI agents. Payment rails move an agent's money; SpendVeto decides whether it should be allowed to move it. Open source, x402 + MCP native, working today — every claim in this deck is executed by a 267-assertion verification suite before it's published.
02 Problem
AI agents now pay for tools, APIs, and data autonomously — no human, no card form. x402 alone: 169M payments across 590,000 buyers in its first year (~$50M cumulative).
Coinbase, Stripe, Visa, Mastercard, Google, and Cloudflare are all shipping agent-payment rails in 2026. Every one answers "how does the agent pay?"
Almost nobody answers the question every team asks first: "how do I stop it from overspending?"
03 Why now — the asymmetry
Cloudflare opened its x402 Monetization Gateway waitlist July 1, 2026 — anyone can now charge agents for anything. Stripe MPP, Nevermined, xpay, Zuplo all monetize the seller side.
Buyer-side governance is now being funded — Catena Labs raised $30M (a16z crypto, May 2026) and is filing for a bank charter — but every funded player is closed and custodial. Payman is a closed fiat platform.
The open position is empty: open-source, self-hostable, rail-neutral, MCP-native buyer-side governance. The GitLab-vs-a-bank position — SpendVeto works with any rail and any custodian, competing with none.
04 Product — working today, not a plan
Real x402 on Base Sepolia + zero-setup simulate mode with real ECDSA and replay protection. 267 end-to-end assertions: npm run verify.
05 Positioning
"Stripe moves money. SpendVeto decides whether the agent should be allowed to move it."
Rail-agnostic by design: x402 today; Google AP2, Stripe MPP, and Mastercard adapters on the roadmap — the policy layer shouldn't care which rail settles.
06 Competition
| Player | What they are | What they don't do |
|---|---|---|
| Coinbase x402 ecosystem | The rail itself | No buyer-side policy, budgets, approvals |
| Cloudflare · Stripe MPP · Nevermined | Seller-side monetization | Nothing for the paying agent |
| Skyfire ($9.5M seed) | Wallets + identity + execution | Not a policy/governance SDK |
| Payman | Closest: limits, approvals | Fiat, closed, enterprise — not x402/MCP-native |
| Catena Labs | Enterprise agent-payment control plane | Closed, institutional; no OSS, no MCP middleware |
| Pleo AI agents · ReimburseAI | AI inside human spend/expenses | Governs humans' spend, not agents' wallets |
The gap: open-source, developer-first, buyer-side governance in the stack agents already use (MCP). Skyfire's $9.5M seed — Coinbase Ventures + a16z CSX — prices this space at exactly our stage.
07 Market
TAM — global agentic-commerce spend by 2030 (McKinsey; Bain: $300–500B US). Stablecoins already move $4.5T/quarter.
SAM — teams already paying via x402/MCP today, plus every agent-fleet team that needs governance before trusting agents with money.
SOM, 18–24 months — OSS-led: a few hundred teams on the hosted tier (orgs, SSO, alerts, audit, enforcement proxy) + bps on governed volume.
Monetizes like usage-billing infra (Lago, Metronome, Orb): open-source core, hosted platform for money. Spend-management software (human spenders) is $26B → $56B by 2032 — agents are the next cohort.
08 Fit — why these funds, right now
Y Combinator — the 2026 RFS explicitly asks for agent infrastructure naming MCPs, and stablecoin infrastructure. YC now funds S26 in $500K USDC.
a16z CSX — $500K for 7%, crypto-native; already backed Skyfire one layer below us.
Alliance DAO — crypto×AI accelerator, $500K, rolling applications, decisions in 2 weeks. Next cohort starts Sept 7, 2026.
09 Traction plan — before applications go in
Launch: GitHub OSS → Show HN, awesome-x402, MCP registries, x402 Discord. Site, deck, demo script, and listing blurbs are already built.
5 design partners running agent fleets in simulate mode — governance value lands before real money moves.
The metric nobody else can show: blocked-spend dollars — already a first-class stat — plus one testimonial from a team whose runaway agent got auto-frozen mid-loop.
10 Honest gaps — and what funding fixes
JSON-file storage → hosted Postgres backend is the first funded milestone.
The enforcement proxy — keyless agents, custody-side signing — ships verified as self-host today → funding builds the hosted multi-tenant version: orgs, SSO, per-team custody, SLAs.
x402 v1 packages → migrate to v2; simulate-first → mainnet Base when design partners want real settlement.
Solo founder, no production users yet → that's what the 30–60 day plan is for.
11 The ask
Multi-rail adapters (AP2, Stripe MPP), richer anomaly models and real-time alerting, SOC 2 path, and the hosted governance dashboard that is the business.
Revanth Rajeev · [email protected]
All sources for every number: PITCH.md in the repo — McKinsey, Bain, Morgan Stanley, Forbes/BCG, Fortune BI, Coinbase disclosures.