Postlia
REMOTE · POSTLIA.COM · SCANNED SEP 20
Schedule and publish social posts to 7 networks from AI agents. Postlia API key (Pro) required.
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 → Why this is hard to score →
Endpoint Security89
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token. See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability77
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 786 tokens (~52/item across 15 items; 15 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage86
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 58% of tool parameters carry a description.Partial
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "delete_draft" implies "delete" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 15 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Postlia MCP server?
Postlia is a hosted endpoint at https://postlia.com/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · postlia.com
claude mcp add --transport http com-postlia-postlia 'https://postlia.com/api/mcp'
{
"mcpServers": {
"com-postlia-postlia": {
"url": "https://postlia.com/api/mcp"
}
}
} {
"servers": {
"com-postlia-postlia": {
"type": "http",
"url": "https://postlia.com/api/mcp"
}
}
} [mcp_servers.com-postlia-postlia] url = "https://postlia.com/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-postlia-postlia": {
"type": "remote",
"url": "https://postlia.com/api/mcp",
"enabled": true
}
}
} openclaw mcp add com-postlia-postlia --url 'https://postlia.com/api/mcp' --transport streamable-http
mcp_servers:
com-postlia-postlia:
url: "https://postlia.com/api/mcp" {
"McpServers": {
"com-postlia-postlia": {
"Transport": "http",
"Url": "https://postlia.com/api/mcp"
}
}
} assistant mcp add com-postlia-postlia -t streamable-http -u 'https://postlia.com/api/mcp'
{
"mcpServers": {
"com-postlia-postlia": {
"type": "http",
"url": "https://postlia.com/api/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.
- 26 Aug 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
- 25 Aug 26 +1
- Stability: 0.97 → pass security
- 23 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Aug 26 0
- Tool “create_post” rewrote its description, which is the text the model reads security
- Schema quality: 39 → 52 ▼ functional
- Tool coverage: 33% → 58% ▲ functional
- New tool “upload_media” functional
- “create_post” added an optional parameter “mediaAlts” cosmetic
- “create_post” added an optional parameter “mediaType” cosmetic
- “create_post” added an optional parameter “mediaUrl” cosmetic
- “create_post” added an optional parameter “mediaUrls” cosmetic
- “create_post” added an optional parameter “pinterestOptions” cosmetic
- “create_post” added an optional parameter “platformContent” cosmetic
- “create_post” added an optional parameter “tiktokOptions” cosmetic
- “create_post” added an optional parameter “youtubeOptions” cosmetic
- “create_post” reworded the description of “platforms” cosmetic
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- 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 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
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 20 Sept 2026 · Probed https://postlia.com/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=postlia.com | CN=YR2,O=Let's Encrypt,C=US | 5 Aug 2026 | 3 Nov 2026 | RSA 2048 | SHA256-RSA | 69e7aa2b32c0af1b1873663444da857d80f |
| SANs: postlia.com | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of postlia.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| postlia.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Challenged, unverified
The endpoint asked for a token, but we could not retrieve and validate the RFC 9728 metadata that tells a client how to obtain one.
| Result | Challenged, unverified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| content-security-policy | frame-ancestors 'none'; base-uri 'self'; object-src 'none'; form-action 'self'; script-src 'self' 'unsafe-inline' 'wasm-unsafe-eval' https://va.vercel-scripts.com https://vercel.live https://cdn.jsdelivr.net; upgrade-insecure-requests |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Protected resource metadata
| Retrieved | No |
|---|---|
| Problem | no_resource_metadata |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://postlia.com/api/mcp | Verified | 200 | |
| http (plaintext) | http://postlia.com/api/mcp | HTTPS enforced | 308 | https://postlia.com/api/mcp |
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. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
cancel_post ~22
Cancel a scheduled post by id.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
No output schema declared.
No examples provided.
create_draft ~40
Save a draft for later without spending posting quota.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | yes | – |
| platforms | array | yes | e.g. linkedin, bluesky |
No output schema declared.
No examples provided.
create_post ~242
Create a post. Provide scheduledAt (ISO datetime) to schedule, queue=true for the next open queue slot, or neither to post within ~5 minutes. Media platforms (instagram, tiktok, pinterest, youtube) need mediaUrl/mediaUrls from upload_media; tiktok/pinterest/youtube also need their options object.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | yes | – |
| mediaAlts | array | – | Alt text per carousel image |
| mediaType | string | – | Required with mediaUrl |
| mediaUrl | string | – | Postlia storage URL from upload_media |
| mediaUrls | array | – | Carousel images (1-4), Postlia storage URLs |
| pinterestOptions | object | – | Required for pinterest: board id etc. |
| platformContent | object | – | Optional per-platform caption overrides, e.g. {"linkedin": "longer text"} |
| platforms | array | yes | e.g. linkedin, bluesky, instagram |
| queue | boolean | – | – |
| scheduledAt | string | – | – |
| tiktokOptions | object | – | Required for tiktok: privacy/interaction settings |
| youtubeOptions | object | – | Required for youtube: title etc. |
No output schema declared.
No examples provided.
delete_draft ~22
Delete a draft by id.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
No output schema declared.
No examples provided.
get_analytics_summary ~56
Post-outcome summary over the last N days: totals, published/partial/failed counts, per-platform volume, and recent platform errors.
| Name | Type | Req | Description |
|---|---|---|---|
| days | number | – | Window in days (1-90, default 30) |
No output schema declared.
No examples provided.
get_post_receipt ~80
Delivery receipt for a post: per-platform outcome (published/failed/retrying/pending), platform post ids, and the platform's real error text. Use this to VERIFY a post actually went live instead of assuming. Accepts the id from create_post or from list_published_posts.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Post id (scheduled or published) |
No output schema declared.
No examples provided.
get_posting_quota ~43
The posting quota that will actually be enforced: tier, posts used, limit and remaining. Check this before composing a batch instead of discovering the limit via errors.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_queue_info ~39
The posting schedule (timezone + weekly slots) and the next open queue slots, i.e. when a create_post with queue=true would actually publish.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_accounts ~19
List the connected social accounts on this Postlia workspace.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_drafts ~20
List saved drafts (not scheduled, cost no quota).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_published_posts ~42
Recent post history with per-post outcome status and any platform errors.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Max posts to return (1-50, default 20) |
No output schema declared.
No examples provided.
list_scheduled_posts ~15
List upcoming scheduled posts.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
reschedule_post ~38
Move a pending scheduled post to a new future time (ISO datetime).
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
| scheduledAt | string | yes | – |
No output schema declared.
No examples provided.
update_post_content ~37
Rewrite a pending scheduled post's text. Platform character limits are enforced.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | yes | – |
| id | string | yes | – |
No output schema declared.
No examples provided.
upload_media ~71
Pull an image or video from a public https URL into Postlia storage. Returns the storage URL and media type, ready for create_post. PNG, JPEG, WebP, GIF, MP4, WebM, MOV, max 25 MB.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | Public https URL of the file |
No output schema declared.
No examples provided.
What is the Postlia MCP server?
Postlia is an MCP server listed in the public MCP registry as com.postlia/postlia. Schedule and publish social posts to 7 networks from AI agents. Postlia API key (Pro) required. This page covers its hosted endpoint (https://postlia.com/api/mcp).
Is the Postlia MCP server safe to use?
Postlia scores 89 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Postlia MCP server expose?
Postlia exposes 15 tools: list_accounts, list_scheduled_posts, create_post, cancel_post, upload_media, and 10 more. Their descriptions and schemas cost roughly 786 tokens of context every time the server is loaded.
Does the Postlia MCP server require authentication?
Yes. Postlia asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the Postlia MCP server still maintained?
Postlia is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.