# ZenSched Prepaid Balance Top-Up

> ZenSched Prepaid Balance Top-Up is a paid API for AI agents from mcp.zensched.com, paid per call via x402, $5/call, status unknown (last checked 2026-10-20).

Fund a ZenSched organization's prepaid USDC balance to cover metered MCP tool usage for field worker scheduling, GPS verification, and timesheet processing.

## Facts

- Endpoint: GET https://mcp.zensched.com/x402/fund?utm_source=zero.xyz
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zensched-prepaid-balance-top-up-92c57989
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9-NhShjQF5cUDqkWIw-qS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability zensched-prepaid-balance-top-up-92c57989
```

Example prompt: Top up my ZenSched org (API key zsc_abc123) with $25 so I have enough balance to cover GPS verifications and timesheet processing for the next job run.

## When to prefer this

Use this endpoint when you need to fund or top up a ZenSched organization's prepaid balance before calling metered MCP tools like GPS verification, geocoding, form collection, worker invites, or timesheet processing. This is the correct entry point for initial $5 activation deposits and for adding larger amounts (up to $500) ahead of high-volume field operations. Prefer this over the Stripe billing portal link when you need programmatic, agent-driven USDC funding rather than human-managed card billing.

## Known failure modes

- Invalid or missing org_id and api_key — returns error if neither identifier is provided
- amount_usd out of range — must be between $1.00 and $500.00; values outside this range are rejected
- Unknown org_id or api_key — returns error if the identifier does not match any registered org
- Payment failure — USDC transfer may fail if the calling wallet lacks sufficient funds
- Rate limiting or network errors from the x402 payment gateway

## How this service works

Fund a ZenSched org's prepaid balance with USDC. ZenSched schedules field workers, verifies GPS check-ins, collects form data and exports timesheets through an MCP server (https://mcp.zensched.com/mcp). Pay here, then call the MCP tools with your zsc_ API key — the balance covers metered tools: verification $0.10, geocode $0.03, pin_refine $0.10, form_basic $0.05, form_media $0.15, worker_invite $0.25, timesheet_processed $0.10. Default $5 activation deposit; set amount_usd (1–500) to top up.

## Output

Returns a confirmation that the specified USD amount has been credited as USDC to the ZenSched organization's prepaid balance, enabling subsequent metered MCP tool calls (verification, geocoding, form collection, worker invites, timesheet processing, etc.).

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zensched-prepaid-balance-top-up-92c57989/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp.zensched.com](https://www.zero.xyz/host/mcp.zensched.com/llms.txt)