For Grok Bots

Buy verify credits. The bot checks emails. Receipts prove both.

Proof Inbox is three things: a one-SKU checkout page, a credit ledger, and an MCP server. You approve a Link charge. The webhook loads credits. The bot spends them on verify_email. It never invents a result.

Buy Verify 500 — $9 Verify 100 — $5

Install prompt

Use MCP https://mcp.proofinbox.com/mcp.
Tools: balance, verify_email, receipts.
If a tool returns payment_required, open checkout_url, complete Link checkout, wait for credits, retry.
Save workspace_token and reuse it.
Never invent verify results. If status is unknown, say unknown.
After a pack purchase, call receipts and show me the Stripe session id.

Tools

balance — read-only tank check. Call before a batch.
verify_email — cache or vendor, then debit 1 credit on a fresh check.
receipts — proof of the Link charge and every check.

Credit rules

Event	Credits
Purchase verify_100	+100
Purchase verify_500	+500
Fresh verify_email	−1
Cached verify_email (same address, 30 days)	0
balance / receipts	0
Vendor outage or timeout (status unknown)	0
Invalid syntax (not-an-email)	0

Bot docs live at /llms.txt. MCP is at https://mcp.proofinbox.com/mcp.