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check_for_callbacks

MCP tool from Webhook MCP Server by zebbern

Quick check for OOB callbacks

How to use it

check_for_callbacks is exposed by the Webhook MCP Server MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the check_for_callbacks tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

Install Webhook MCP Server

$uvx webhook-mcp-server==2.2.2

FULL WEBHOOK MCP SERVER LISTING

Other tools in Webhook MCP Server (23)

Start here: disposable URL, temp email, and DNS for sign-up or callbacks

create_webhook_with_config

Create with custom response, status, CORS, timeout

delete_all_requests

Bulk delete with filters

Delete a specific request

Delete a webhook endpoint

export_webhook_data

Export all requests to JSON

extract_links_from_request

Pull confirm / reset / magic-link URLs from a captured email or HTTP body

follow_email_link

Open a captured verify / magic / reset URL and return the page preview

generate_canary_token

Create trackable URLs, DNS, or email canaries

generate_ssrf_payload

Create SSRF test payloads (HTTP, DNS, IP-based)

generate_xss_callback

Create XSS callback payloads with cookie/DOM capture

get_latest_request

Get the most recent captured request

get_webhook_dns

Get the DNS subdomain for a webhook

get_webhook_email

Temp inbox {token}@email.webhook.site for sign-up / verify / magic-link / reset

get_webhook_info

Get webhook settings and statistics

get_webhook_requests

List all captured requests

get_webhook_url

Get the full URL for a webhook token

search_requests

Search with filters (method, content, date)

send_multiple_requests

Send batch of requests for load testing

send_to_webhook

Send JSON data to a webhook

Modify webhook configuration

After sign-up: wait for verify / magic-link / reset mail, links, and OTP codes

wait_for_request

Wait for a new HTTP request (polling, 1-120s). Set returnexisting to reuse old traffic.