Connect Proof Inbox and your agent gets 3 tools, among them balance, receipts, verify_email. It answers at https://mcp.proofinbox.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
Prepaid email-verify credits for Grok Bots via Stripe Link and MCP.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
balance | Read-only verify credit balance for a workspace. Call this before a batch. Does not burn credits. Inputs: workspace_token |
receipts | List proof of spend and proof of checks for this workspace. Use this when the human asks what a charge paid for. Do not invent checkout session ids. Inputs: workspace_token, limit, receipt_id |
verify_email | Verify one email. Cached repeats within 30 days are free. If credits are 0, returns payment_required with a checkout_url. Never invent results. unknown means the check did not finish. Inputs: email, workspace_token |
Every block below points at https://mcp.proofinbox.com/mcp. Pick your client and copy.
claude mcp add --transport http proof-inbox https://mcp.proofinbox.com/mcp
{
"mcpServers": {
"proof-inbox": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.proofinbox.com/mcp"]
}
}
}{
"mcpServers": {
"proof-inbox": {
"url": "https://mcp.proofinbox.com/mcp"
}
}
}{
"servers": {
"proof-inbox": {
"type": "http",
"url": "https://mcp.proofinbox.com/mcp"
}
}
}{
"context_servers": {
"proof-inbox": {
"url": "https://mcp.proofinbox.com/mcp"
}
}
}{
"mcpServers": {
"proof-inbox": {
"serverUrl": "https://mcp.proofinbox.com/mcp"
}
}
}{
"mcpServers": {
"proof-inbox": {
"url": "https://mcp.proofinbox.com/mcp"
}
}
}name: Proof Inbox
version: 0.0.1
schema: v1
mcpServers:
- name: Proof Inbox
type: streamable-http
url: https://mcp.proofinbox.com/mcp{
"mcpServers": {
"proof-inbox": {
"httpUrl": "https://mcp.proofinbox.com/mcp"
}
}
}{
"mcpServers": {
"proof-inbox": {
"type": "http",
"url": "https://mcp.proofinbox.com/mcp"
}
}
}{
"mcpServers": {
"proof-inbox": {
"url": "https://mcp.proofinbox.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.proofinbox.com%2Fmcp&type=streamable_http&id=proof-inbox&name=Proof%20Inbox
It answered our last check on 18 October 2026 in 115 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by proofinbox.com and served from mcp.proofinbox.com, the vendor's own domain: https://mcp.proofinbox.com/mcp.
3, as returned by the server's own tools/list on 31 August 2026: balance, receipts, verify_email.
It answered our last check on 18 October 2026 in 115 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.proofinbox.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.proofinbox. Endpoint host: mcp.proofinbox.com. ARD identifier: urn:air:com.proofinbox:mcp:verify.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.