ai.powerline/inbox-preview
REMOTE · API.POWERLINE.AI · SCANNED AUG 3
Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS not yet verified: we couldn't determine whether a plaintext access path exists. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 412 tokens (~103/item across 4 items; 4 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management20
- Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · api.powerline.ai
claude mcp add --transport http ai-powerline-inbox-preview https://api.powerline.ai/v1/mcp
[mcp_servers.ai-powerline-inbox-preview] url = "https://api.powerline.ai/v1/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"ai-powerline-inbox-preview": {
"type": "remote",
"url": "https://api.powerline.ai/v1/mcp",
"enabled": true
}
}
} openclaw mcp add ai-powerline-inbox-preview --url https://api.powerline.ai/v1/mcp --transport streamable-http
mcp_servers:
ai-powerline-inbox-preview:
url: "https://api.powerline.ai/v1/mcp" {
"mcpServers": {
"ai-powerline-inbox-preview": {
"type": "http",
"url": "https://api.powerline.ai/v1/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Jul 26 −2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 29 Jul 26 +1
- Stability: unverified → 0.03 ▲ functional
- 28 Jul 26 59
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Probed https://api.powerline.ai/v1/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=powerline.ai | CN=YE2,O=Let's Encrypt,C=US | 30 Jun 2026 | 28 Sept 2026 | ECDSA 256 | ECDSA-SHA384 | 5a680fefd8b8265b2dd06ed4d8f5d0835e7 |
| SANs: *.powerline.ai, powerline.ai | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
DNSSEC insecure
Validation of api.powerline.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 3799 | 8 | Verified |
| powerline.ai. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.powerline.ai/v1/mcp | Verified | 200 | |
| http (plaintext) | http://api.powerline.ai/v1/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
get_job ~40
Get the status and screenshots for a preview job. Poll until status is "completed".
| Name | Type | Req | Description |
|---|---|---|---|
| job_id | string | yes | The job ID returned by submit_preview |
No output schema declared.
No examples provided.
get_screenshot ~109
Fetch a rendered screenshot. Returns the image URL for the given job, client, width, and environment (color scheme / images).
| Name | Type | Req | Description |
|---|---|---|---|
| client | string | yes | Client ID |
| color_scheme | string | — | The render's color scheme |
| images_disabled | boolean | — | Whether the render had images blocked |
| job_id | string | yes | The job ID |
| viewport_width | number | yes | Viewport width of the render, matching the job (1280 when the job used client defaults) |
No output schema declared.
No examples provided.
list_clients ~29
List the email clients this deployment can render right now, with their rendering tier, engine, and capabilities
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
submit_preview ~234
Submit an email for rendering across email clients — full HTML, or a complete raw .eml (base64). Provide exactly one of html/eml. Returns a job ID to poll for results.
| Name | Type | Req | Description |
|---|---|---|---|
| eml | string | — | A complete raw RFC 822 message (.eml), base64-encoded — inserted verbatim (real headers, multipart, attachments). Max 10MB decoded. Provide exactly one of html or eml. |
| html | string | — | The full email HTML to preview. Provide exactly one of html or eml. |
| include_previews | boolean | — | Also capture the inbox-list row (how the message looks unread in the list) and the subject heading, returned as inbox_preview / subject_preview on each render. Default false: they cost more than the… |
| renders | array | — | Exactly the renders you want, one entry each (e.g. outlook light + outlook dark are two entries). Omit for the server default: every live client at its default width, light. |
| subject | string | — | Email subject line |
No output schema declared.
No examples provided.