API Tools
webhookjar.com
A webhook inbox service for creating endpoints, listing and inspecting incoming requests, and waiting for requests during API integration and testing.
ENDPOINT 1
https://webhookjar.com/mcp
MCP server metadata
- Name
- webhookjar
- Version
- 1.0.0
Webhook Jar catches webhooks so you can see exactly what a service sent. Typical flow: create_inbox, give its post_url to the service (or send to it yourself), trigger the event, then wait_for_request and read the request it returns. get_request shows the headers, raw body and whether the signature matched the inbox's signing secret. Ids are ib_... for inboxes and rq_... for requests. Times are UTC. Full reference: https://webhookjar.com/llms.txt
Known tools 12
create_inboxMakes a kept inbox on your account and returns its post_url (give this to the service that sends webhooks) and view_url (for a person to watch it live).
Inferred read-onlylist_inboxesEvery open inbox on your account, busiest first, with its post_url, request count and last request time.
Inferred read-onlyget_inboxOne inbox: its URLs, counts, what it answers senders with, and its forwarding.
Inferred read-onlywait_for_requestHolds until a request lands in the inbox, then returns it in full (headers, body, provider, event, signature check).
Inferred read-onlylist_requestsAn inbox's requests, newest first, without bodies: id, time, method, provider, event, a plain headline and the signature result.
Inferred read-onlysend_sampleDelivers a real provider webhook into the inbox, with the provider's own headers, body and signature, so you can test a handler with no provider account.
Inferred read-onlyget_requestEverything caught, as it came: method, path, query, headers, the raw body (base64 when not text), sender, event, and whether its signature matched the inbox's signing secret (verified, failed, or null with no secret set), with the checks behind it.
Inferred read-onlyset_inbox_answerChanges what the inbox sends back to senders, to test how a provider handles failures: status (200, 201, 202, 204, 400, 401, 403, 404, 409, 410, 422, 429, 500, 502, 503), body as a string, delay (0, 2, 10, 30 seconds), and challenges (answer Slack, Meta and Twitch verification for you).
Potential side effectsset_forwardingSends every request that lands on to your own public http or https address, exactly as it came, with retries.
Inferred read-onlyreplay_requestSends one captured request to the inbox's forward address again, exactly as it came, and returns what your server answered and how long it took.
Inferred read-onlyget_usageYour plan, calls and captures used today and their limits, inboxes in use, history kept and when the day resets.
Inferred read-onlyCONNECT WITH APPROVAL
Client installation
Review this server and its permissions before adding it. Secret placeholders must be set locally.
Codex
~/.codex/config.toml
[mcp_servers.webhookjar]
url = "https://webhookjar.com/mcp"
enabled = true
Claude Code
.mcp.json
{
"mcpServers": {
"webhookjar": {
"type": "http",
"url": "https://webhookjar.com/mcp"
}
}
}
Claude Desktop
Settings → Connectors → Add custom connector
Name: webhookjar
Remote MCP URL: https://webhookjar.com/mcp
Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.
Cursor
.cursor/mcp.json
{
"mcpServers": {
"webhookjar": {
"url": "https://webhookjar.com/mcp"
}
}
}
Visual Studio Code
.vscode/mcp.json
Add to Visual Studio Code{
"servers": {
"webhookjar": {
"type": "http",
"url": "https://webhookjar.com/mcp"
}
}
}
Generic MCP
Client-specific MCP configuration
{
"name": "webhookjar",
"transport": "streamable-http",
"url": "https://webhookjar.com/mcp"
}
MCP Inspector
Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.
TRUST AND VERIFICATION EVIDENCE
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