Top up an existing watch (paid via x402 at REST)
seneschal_private_watch_topupAdd prepaid credit to an existing Private Watch. Three tiers — $0.10 (default), $1.00, and $5.00 — each settling at the matching REST path (/v1/private/topup, /topup-1, /topup-5). Credit is in atomic USDC ($0.02/day idle, $0.005/call). This tool returns the URL the agent should POST to with its x402 client; it does NOT settle payment itself.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| tier | No | Top-up size. 10c = $0.10 (≈5 days idle), 1 = $1.00 (≈50 days), 5 = $5.00 (≈250 days). | 10c |
| watchId | Yes | The watchId returned from create. | |
| watchToken | Yes | The watchToken returned from create (constant-time compared at the REST surface). |