The solution space
Eight choices, and what each one costs
An agent-payment levy for humanitarian aid is not one design. It is a set of choices that each have honest alternatives. Here they are, with what this proposal picked, the strongest alternative, and why. Then three complete paths through them, and who would have to say yes to each.
Three paths through the choices
Each is coherent on its own. They are not exclusive: the first can start now and become evidence for the other two.
| A. The voluntary rail | B. The processor pledge | C. The Unitaid road | |
|---|---|---|---|
| In one line | An optional field in agent payment protocols; owners opt in; one public fund; a published rule. | Payment processors offer an opt-in solidarity share to businesses and agent owners on their own platforms. | A coalition of countries passes laws putting a small levy on agent-initiated payments, paid into a UN-hosted fund. |
| Precedent | Open-source protocol extensions (x402's extension mechanism). | Stripe Climate, which lets businesses send a share of their revenue to carbon removal. | The airline ticket levy that funds Unitaid, in force since 2006. |
| Who must say yes | Protocol maintainers (as an optional extension), facilitators willing to settle and publish batches, a fund under UN responsibility. | One processor's product and legal teams, and a fund or conduit that can issue receipts. | Finance ministries and parliaments, one country at a time, and the UN to host the fund. |
| Time to first dollar | Months, once one facilitator and one fund agree. | Months; a processor can ship a toggle. | Years. |
| Scale | Small: depends on owners choosing it. | Medium: defaults and design of the toggle matter a great deal. | Large and stable, if adopted. |
| Biggest risk | Nobody turns it on. | Fragments: each processor picks its own recipients and rules. | Political: a levy on a young industry is a hard sell, and revenue could replace aid budgets rather than add to them. |
| What this site shows | All of it, simulated: field, ledger, rule. | The rule and the ledger apply unchanged. | The rule applies unchanged; collection would be through tax authorities instead. |
A sensible order
- Prove it with real money, small. One person sets aside 0.1% of their own agent's purchases for a month and gives it to the UN's emergency fund through its public donation route, publishing the receipt next to the ledger.
- Get the rule reviewed. People who allocate pooled humanitarian funds, and the analysts who build the severity data, say where the rule is wrong. The evidence page is the starting point.
- Get the field reviewed. Open the draft extension as a discussion with the x402 maintainers, and ask the AP2 and Agentic Commerce Protocol communities what the card and bank versions would need.
- Find one facilitator and one fund. A single facilitator settling shares and publishing monthly batches, into a fund that publishes its rule, is a working path A.
- Then the bigger roads. A processor toggle (path B) and, if the evidence holds, the conversation with governments (path C).