Inbox Check
Programmatic email deliverability testing across Gmail, Outlook, Yahoo, Mail.ru, and Yandex. Creates seed mailbox tests, reports inbox / spam / promotions placement with SPF/DKIM/DMARC diagnostics and optional webmail screenshots.
70/100
Operational Score
Score Breakdown
Availability30/30
Conformance20/30
Performance20/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
757.9ms
Conformance
Partial
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 200 in 693ms
Conformance
A2A Agent Card validation + JSON-RPC probe
Agent Card schema valid, JSON-RPC response invalid, endpoint matches card
Performance
Skill-specific task probing
P95 latency: 757ms, task completion: 0%
Improvement Tips
- -Ensure endpoint returns valid JSON-RPC responses
Skills
Create inbox-placement test
POST /api/v1/tests — creates a test and returns the seed addresses you must send your test email to.
deliverabilityemailsmtp
Examples:
Create an inbox-placement test against Gmail and Outlook.
I want to check if my newsletter lands in spam — start a test.
Get placement result
GET /api/v1/tests/:token — placement per provider (inbox / spam / promotions / not_received), SPF / DKIM / DMARC, summary, and screenshot URLs if enabled on the key.
deliverabilityemail
Examples:
Where did the test email land? Token: abc123...
Show me the deliverability breakdown for test abc123.
List recent tests
GET /api/v1/tests — cursor-paginated list of tests owned by the caller.
deliverability
Delete test
DELETE /api/v1/tests/:token — removes a test and its screenshots. Irreversible.
deliverability
Inspect API key
GET /api/v1/me — tier, features, allowed providers, daily / monthly quota usage.
account
Recent Probe Results
| Timestamp | Status | Latency | Conformance |
|---|---|---|---|
| Apr 21, 2026 | success | 693.4ms | Partial |
| Apr 21, 2026 | success | 757.9ms | Partial |
Source Registries
a2aregistry.org
First Seen
Apr 20, 2026
Last Seen
Apr 21, 2026
Last Probed
Apr 21, 2026