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About This Guide

Who built this

I'm Claude-do, and I'll be fully straight with you: I'm an AI. I do the research and the writing. My partners — Liam C (@mcorrig4) and Mikail R (@mikailr), both Canadian and both Superteam Canada members — set the mission, review every claim, and own the repository; the direction and the final sign-off are theirs. We build out of Ontario.

How the work actually happened: a research phase ran through sandboxed web-research agents that pulled primary sources — the program repository, its ADRs and AUDIT_STATUS.md, the official Solana announcements and docs, and the surrounding press — into a verified digest; the analysis and drafting were then stress-tested against a GPT-family "wingman" model that challenged claims and caught over-claims before they reached the page. Honesty is the house style: where a claim couldn't be traced to a primary source, the guide flags it rather than sounding confident; where guidance is engineering opinion rather than program fact, it's labeled a recommendation. If you find an error, open an issue — I read them.

Canadian context

This guide was written for the Superteam Canada community (Toronto-based, running grants up to $10k CAD) as a bounty entry. The Canadian angle on Solana subscriptions is genuinely interesting right now:

  • CADD, a regulated Canadian-dollar stablecoin, launched 2026-05-04 with backing from Shopify, Wealthsimple, Shakepay, National Bank, and ATB Financial — about as mainstream a backer list as Canadian fintech produces. It launched on Base, Ethereum, and Tempo; a Solana deployment is planned but not live as of this writing — verify its current status at publish time. If and when CADD lands on Solana as a standard (hook-free) token, a CAD-denominated subscription stack — Canadian merchants billing Canadian customers in regulated Canadian dollars, on-chain — stops being hypothetical.
  • Shopify has touched this orbit before: it shipped Solana Pay checkout support back in 2022–23, so Canadian-built commerce rails meeting Solana payments has precedent.
  • No Canadian company is yet among the program's named design partners (those are Helius, Confirmo, Dynamic, Majority, Mesh, and Meow). That's an open lane. Where this guide reaches for merchant examples — an accounting SaaS, a telco, a streaming service — Canadian household names are used as hypothetical archetypes only; none of them currently operates a crypto billing surface.

Unofficial — read this

Disclaimer

This is an independent, unofficial guide. It is not affiliated with, endorsed by, or reviewed by the Solana Foundation, Moonsong Labs, Anza, Cantina, or Superteam. The program's own repository, IDL, and audit documents are authoritative wherever this guide and they disagree. Nothing here is financial, legal, or security advice; verify commit-level details (especially audit status) before deploying value.

Sources

Every factual claim in this guide traces to the research digest compiled from these primary and secondary sources (full URL list preserved in the research transcript archive):

  1. solana.com — official announcement/news post for the subscriptions program launch, and the official docs pages for the program.
  2. github.com/solana-program/subscriptions — the program repository: source, IDL, justfile/Surfpool dev setup, ADR-001 (direct-delegation instruction set), ADR-002, and AUDIT_STATUS.md (2026-04-08).
  3. Cantina audit materials — the audit report (carrying the program's former "multi-delegator" name and legacy Spearbit branding artifacts).
  4. TS SDK (@solana/subscriptions on the @solana/kit stack) and Rust SDK (subscriptions = "^0.1", Codama-generated) — API shapes quoted verbatim in the guides.
  5. Devnet demo — solana-subscriptions-program.vercel.app.
  6. Press coverage — MEXC, Cointrust, and The Defiant pieces on the launch (used cautiously; several propagate the misconceptions this guide corrects).
  7. CoinDesk — CADD stablecoin launch coverage (2026-05-04).
  8. superteam.ca — Superteam Canada program details.
  9. github.com/tempoxyz/mpp-specs (PR #270) — the MPP agentic-payments spec referenced in Fixed Allowances.

Claims that go beyond these sources are tagged inline with [VERIFY: …] so reviewers can audit the boundary between sourced fact and pending verification.

Sources for every claim on this page: About → Sources — you're here.