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MCP Server

Hookjar

lighting.comiza/hookjar
Cloud & Infrastructure Developer Tools Public & reachable MCP 2026-07-28

What this MCP does

Creates public webhook inboxes and receives, stores, lists, and retrieves OAuth, payment, CI, and other HTTP callbacks.

Capabilities

Tools

6 tools
create_inbox
Create a webhook inbox
Create a public URL that captures any HTTP request sent to it. Use it when you need something outside this session to reach you: an OAuth redirect, a payment provider callback, a CI notification, a webhook you are testing. Returns the URL to hand to the other service. Requests are readable with get_requests or wait_for_request.
Input schema 
{'type': 'object', 'properties': {'label': {'type': 'string', 'description': "Optional note to yourself, for example 'stripe test'."}}}
delete_inbox
Delete an inbox
Delete an inbox and everything captured in it.
Input schema 
{'type': 'object', 'required': ['inbox_id'], 'properties': {'inbox_id': {'type': 'string'}}}
get_request
Read one captured request
Return the full method, headers, query string and body of a single captured request. Text bodies come back as text, binary as base64.
Input schema 
{'type': 'object', 'required': ['request_id'], 'properties': {'request_id': {'type': 'string'}}}
get_requests
List captured requests
List what has arrived in an inbox, newest last. Returns summaries without bodies. Use get_request for the full contents of one.
Input schema 
{'type': 'object', 'required': ['inbox_id'], 'properties': {'limit': {'type': 'integer', 'default': 20}, 'inbox_id': {'type': 'string'}, 'after_seq': {'type': 'integer', 'default': 0}}}
list_inboxes
List your inboxes
List the inboxes you currently own, with their URLs and expiry.
Input schema 
{'type': 'object', 'properties': {}}
wait_for_request
Wait for a request to arrive
Block until a request lands in the inbox, then return it. This is the tool to use straight after you have triggered the action that should produce the callback. Returns immediately if something already arrived after the sequence number you pass.
Input schema 
{'type': 'object', 'required': ['inbox_id'], 'properties': {'inbox_id': {'type': 'string'}, 'after_seq': {'type': 'integer', 'default': 0, 'description': 'Return only requests newer than this sequence number. Use 0 the first time.'}, 'timeout_seconds': {'type': 'integer', 'default': 30, 'description': 'How long to wait. Capped by your tier.'}}}
History

Recent tool changes

Added
delete_inbox
Sept. 17, 2026, 12:54 p.m.
Added
get_request
Sept. 17, 2026, 12:54 p.m.
Added
get_requests
Sept. 17, 2026, 12:54 p.m.
Added
wait_for_request
Sept. 17, 2026, 12:54 p.m.
Added
list_inboxes
Sept. 17, 2026, 12:54 p.m.
Added
create_inbox
Sept. 17, 2026, 12:54 p.m.
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