Stringer CleanExtract
REMOTE · EXTRACT.GETSTRINGER.APP · SCANNED SEP 26
Convert public HTML or a public URL into token-dense Markdown through one remote MCP tool.
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 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 2 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 enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. 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 Usability83
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 280 tokens (~140/item across 2 items; 2 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
- Stability observed for 27 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 2 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 Stringer CleanExtract MCP server?
Stringer CleanExtract is a hosted endpoint at https://extract.getstringer.app/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 · extract.getstringer.app
claude mcp add --transport http app-getstringer-cleanextract 'https://extract.getstringer.app/mcp'
{
"mcpServers": {
"app-getstringer-cleanextract": {
"url": "https://extract.getstringer.app/mcp"
}
}
} {
"servers": {
"app-getstringer-cleanextract": {
"type": "http",
"url": "https://extract.getstringer.app/mcp"
}
}
} [mcp_servers.app-getstringer-cleanextract] url = "https://extract.getstringer.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"app-getstringer-cleanextract": {
"type": "remote",
"url": "https://extract.getstringer.app/mcp",
"enabled": true
}
}
} openclaw mcp add app-getstringer-cleanextract --url 'https://extract.getstringer.app/mcp' --transport streamable-http
mcp_servers:
app-getstringer-cleanextract:
url: "https://extract.getstringer.app/mcp" {
"McpServers": {
"app-getstringer-cleanextract": {
"Transport": "http",
"Url": "https://extract.getstringer.app/mcp"
}
}
} assistant mcp add app-getstringer-cleanextract -t streamable-http -u 'https://extract.getstringer.app/mcp'
{
"mcpServers": {
"app-getstringer-cleanextract": {
"type": "http",
"url": "https://extract.getstringer.app/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 Sept 26 +1
- Tool “clean_extract” rewrote its description, which is the text the model reads security
- Schema quality: 77 → 140 ▼ functional
- Server version: 0.3.0 → 0.4.0 functional
- New tool “clean_extract_outline” functional
- “clean_extract” added an optional parameter “sections” cosmetic
- 25 Sept 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
- 22 Sept 26 +1
- Tool “clean_extract” rewrote its description, which is the text the model reads security
- Schema quality: fail → pass ▲ functional
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.
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 26 Sept 2026 · Probed https://extract.getstringer.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=getstringer.app | CN=WE1,O=Google Trust Services,C=US | 23 Aug 2026 | 21 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | 4098d4b9285687de13bad6373ed10c64 |
| SANs: getstringer.app, extract.getstringer.app, *.extract.getstringer.app | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of extract.getstringer.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| getstringer.app. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://extract.getstringer.app/mcp | Verified | 200 | |
| http (plaintext) | http://extract.getstringer.app/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. 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 →
clean_extract ~172
Extract a full page or selected sections from a public URL or raw HTML. A call is charged only when it returns usable content; the first 3 usable extraction calls are free, total, then USD 0.05. Use the free clean_extract_outline first. Uncharged failures name upstream_timeout, upstream_http_error, bot_challenge, js_shell, empty_extraction, or sections_not_found. Recoverable structured data names fallback_used. Every success reports extraction_quality and extraction_content_ratio_band.
| Name | Type | Req | Description |
|---|---|---|---|
| max_output_bytes | integer | – | Optional maximum UTF-8 byte length of the returned Markdown. |
| sections | array | – | Optional ids from clean_extract_outline. Return only these sections in document order. |
| url_or_html | string | yes | A public HTTP(S) URL or a raw HTML string to convert into Markdown. |
No output schema declared.
No examples provided.
clean_extract_outline ~108
Free outline with section ids, headings, byte sizes, and a fingerprint, without page body text or payment. A later clean_extract call can select sections and is charged only when it returns usable content. Uncharged failures name upstream_timeout, upstream_http_error, bot_challenge, js_shell, empty_extraction, or sections_not_found. Recoverable structured data names fallback_used.
| Name | Type | Req | Description |
|---|---|---|---|
| url_or_html | string | yes | A public HTTP(S) URL or a raw HTML string to convert into Markdown. |
No output schema declared.
No examples provided.
What is the Stringer CleanExtract MCP server?
Stringer CleanExtract is an MCP server listed in the public MCP registry as app.getstringer/cleanextract. Convert public HTML or a public URL into token-dense Markdown through one remote MCP tool. This page covers its hosted endpoint (https://extract.getstringer.app/mcp).
Is the Stringer CleanExtract MCP server safe to use?
Stringer CleanExtract scores 74 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 Stringer CleanExtract MCP server expose?
Stringer CleanExtract exposes 2 tools: clean_extract, clean_extract_outline. Their descriptions and schemas cost roughly 280 tokens of context every time the server is loaded.
Does the Stringer CleanExtract MCP server require authentication?
No. We connected to Stringer CleanExtract without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Stringer CleanExtract MCP server still maintained?
Stringer CleanExtract is still listed as active in the MCP registry. We last reached this channel on 26 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.