# Services from inbox.withzero.xyz on Zero

> inbox.withzero.xyz serves 14 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/inbox.withzero.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/inbox.withzero.xyz/health.json

## Services

- [Delete Subscription](https://www.zero.xyz/c/inbox-withzero-xyz-delete-a-subscription-52c47055/llms.txt): free via MPP. Removes a specific subscription from an agent's inbox, stopping future fan-out of the subscribed topic.
- [Inbox Lease Status and Pending Message Count](https://www.zero.xyz/c/inbox-withzero-xyz-inbox-lease-status-and-pending-message-count-699914ba/llms.txt): free via MPP. Returns the current lease status, expiry date, and number of pending unacknowledged messages for the caller's inbox.
- [List Subscriptions](https://www.zero.xyz/c/inbox-withzero-xyz-list-your-subscriptions-d12faa86/llms.txt): free via MPP. Returns all active topic subscriptions associated with the caller's inbox wallet.
- [Long-Poll Drain: Fetch Unacked Inbox Events](https://www.zero.xyz/c/inbox-withzero-xyz-long-poll-drain-fetch-unacked-inbox-events-f3139f8c/llms.txt): free via MPP. Returns unacked events from the agent's inbox using long-polling, optionally filtered by topic glob pattern.
- [Acknowledge (ACK) Inbox Events](https://www.zero.xyz/c/inbox-withzero-xyz-acknowledge-ack-inbox-events-8b7561da/llms.txt): free. Marks one or more drained inbox events as handled so they no longer appear in subsequent drain calls.
- [Provision Inbox Lease (inbox.withzero.xyz)](https://www.zero.xyz/c/inbox-withzero-xyz-provision-inbox-lease-inbox-withzero-xyz-bf4276c2/llms.txt): free via MPP. Creates or extends a free ~6-month durable inbox lease for the calling wallet, enabling the agent to publish, drain, and manage events.
- [Publish Event to Inbox](https://www.zero.xyz/c/inbox-withzero-xyz-publish-event-to-inbox-dbe41c17/llms.txt): free via MPP. Publishes a named event with an arbitrary JSON payload into the caller's inbox, fanning out to any subscribers
- [Register External Webhook Source (inbox.withzero.xyz)](https://www.zero.xyz/c/inbox-withzero-xyz-register-external-webhook-source-inbox-withzero-xyz-adfc4c4e/llms.txt): free. Registers an external webhook source (GitHub, Stripe, or generic) and returns the inbound URL and HMAC secret to configure in the external system.
- [Subscribe Inbox to Publisher Topic](https://www.zero.xyz/c/inbox-withzero-xyz-subscribe-inbox-to-publisher-topic-07ba4da1/llms.txt): free. Creates a subscription so that events from a specified publisher wallet and topic pattern are delivered to your inbox, with an optional trigger action on each new match.
- [List Webhook Connections](https://www.zero.xyz/c/inbox-withzero-xyz-list-webhook-connections-3312ab54/llms.txt): free via MPP. Returns all registered external webhook connections for your inbox, including their IDs, names, source types, inbound URLs, and creation timestamps.
- [Mint One-Click Ack Link for Inbox Message](https://www.zero.xyz/c/inbox-withzero-xyz-mint-one-click-ack-link-for-inbox-message-ae7d999d/llms.txt): free. Generates a signed, time-limited URL that allows a human to acknowledge (clear) an inbox message without needing a crypto wallet.
- [Mint Buyer Link Code](https://www.zero.xyz/c/inbox-withzero-xyz-mint-buyer-link-code-dea4dd5e/llms.txt): free via MPP. Generates a short-lived (10-minute), single-use code that allows another purchasing channel to be linked to the current buyer account.
- [Present Buyer Link Code (Merge Channel into Buyer Account)](https://www.zero.xyz/c/inbox-withzero-xyz-present-buyer-link-code-merge-channel-into-buyer-cfa27f36/llms.txt): free via MPP. Accepts a single-use link code minted on another channel to merge the current channel into that buyer account on the inbox.withzero.xyz message bus.
- [Revoke Webhook Connection](https://www.zero.xyz/c/inbox-withzero-xyz-revoke-webhook-connection-3b06ef5e/llms.txt): free via MPP. Deletes a registered webhook connection by ID, permanently revoking it and stopping event forwarding from that external source.

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)