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MRR Ledger Watch — Webhook Subscription for Agentic Business Metrics
x402
MRR Ledger Watch — Webhook Subscription for Agentic Business Metrics is a paid API for AI agents from mrrledger.com, paid per call via x402, $5/call, status unknown (last checked 2026-10-20).
Registers a webhook to receive real-time notifications when MRR Ledger metrics or business data changes for specified agentic businesses
Price / call$5
Success—
StatusUnknown
How this service works
Real agentic businesses that make money. Every number sourced.
Output
Returns a watch object containing a unique watch_id, a webhook signing secret (whsec_...) for validating incoming payloads, the subscription status ('active'), the list of monitored business slugs, and an expiry timestamp indicating when the watch subscription ends.
Example use cases
Competitive revenue intelligence dashboard
“Subscribe my webhook at https://dashboard.acme.com/webhooks/mrr to watch Cursor, Perplexity, and Cognition on MRR Ledger for metric_revised and metric_added events — I want to update my competitive analysis dashboard the moment their numbers change.”
New agentic business discovery alert
“Set up a MRR Ledger watch on all businesses with my webhook https://alerts.myapp.com/new-agents, filtering for business_added events only, so I know every time a new agentic company gets listed.”
Automated investor portfolio monitoring
“Watch Replit and Devin on MRR Ledger for any metric_revised, metric_added, or metric_redated events and send changes to https://portfolio.vc/hooks/mrr — I need to track every revision to their MRR figures for my investment notes.”
Technical details
Endpoint
POSThttps://mrrledger.com/api/v1/watch?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time push notifications for metric changes rather than polling. Ideal when you want event-driven automation triggered by MRR Ledger data updates without repeatedly querying. Choose this over a polling approach when you need low-latency alerts and want to avoid unnecessary API calls. Best suited for agents building dashboards, competitive monitoring pipelines, or investment tracking workflows that react to sourced, verified revenue changes in agentic businesses.
Side effects
- Invalid or non-public webhook_url (must be https on port 443) returns validation error
- Unknown business slug causes rejection or silent omission
- Exceeding 10 slugs in array form returns error
- Payment failure (insufficient USDC) prevents subscription creation
- Expired watch_id requires re-subscription after expires_at
- Webhook delivery failures on the receiving end are the caller's responsibility
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| kinds | array | |
| slugs | — | Business slugs to watch (1-10; $1 each, never more than $5) or "all" ($5) |
| webhook_url | string | https URL on a public host, port 443 |
Output
Schema · Response
{
"type": "json",
"example": {
"slugs": [
"cursor"
],
"secret": "whsec_...",
"status": "active",
"watch_id": "w_0123456789abcdef0123",
"expires_at": "2026-01-01T00:00:00.000Z"
}
}Tags
x402
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