callbacks
shallowonline.x-402/mcp · Verify this server
A temporary public webhook URL: give it to any service, then long-poll the events that arrived (method, query, headers, body). Free to receive and read, up to 100 events for 1 to 24 hours A temporary public webhook URL for agents without a server: create it, give callback_url to any external service (payment processor, job runner, OAuth redirect, another agent), then read what arrived through events_url with long-polling. Captures method, query, headers and JSON, form or text body. Receiving and reading are free; only creation is paid. Up to 100 events, 64 KB each, live 1 to 24 hours. Query: ?ttl_hours=24&label=job-42 — $0.005000/call, paid per request via x402 (USDC). Use when asked: "temporary webhook url", "receive a webhook without a server", "request bin for my agent".
1 trials · measured 1 day ago
callbacks scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against online.x-402/mcp, measured 6 Oct 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Category
- Content & media
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-06 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
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