Build on Tether.

Server-to-server. Authenticate with a bearer key (issued per partner). Each grant is a revocable permission to charge, with a cap and cadence.

curl https://tether.bornbetween2generals.com/api/v1/grants \
  -H "Authorization: Bearer $TETHER_API_KEY"

{
  "object": "list",
  "beta": true,
  "workspace": "demo",
  "count": 11,
  "data": [
    {
      "id": "sample-1",
      "payee": "Netflix",
      "category": "Streaming",
      "cap": 22.99,
      "cadence": "mo",
      "monthly_cap": 22.99,
      "next_charge": "2026-07-02",
      "status": "active",
      "revocable": true,
      "revoke_via": "guided"
    }
  ]
}

tether-containment-receipt/1 — an Ed25519-signed, self-certifying record of a cancellation or containment event. Public and unauthenticated: anyone holding a receipt can re-verify it. Tampering fails the check.

curl https://tether.bornbetween2generals.com/api/v1/receipts/$RECEIPT/verify

{
  "protocol": "tether-containment-receipt/1",
  "event": { "type": "cancellation", "merchant": "Netflix", ... },
  "verification": {
    "ok": true,
    "signatureValid": true,
    "bodyHashValid": true,
    "anchored": false
  }
}

anchored: falsemeans the signing key is not yet a published trust anchor — receipts are an “unverified preview” until the key lives in a KMS. The signature and body hash are always checked.

Pricing

Start metered, grow into a platform plan, white-label at scale. The consent-grant + receipt API bills today; interchange-share layers on once §7.5 Leashes ship.

Interchange-share (post-§7.5):on funded Leashes, Tether rebates ~30 bps of interchange to revenue-share partners — the “we make money by protecting users” model, extended to embedders. Available once an issuing partner clears the gate.