Sorsa
REMOTE · SORSA.APP · SCANNED SEP 20
Amazon FBA arbitrage toolkit: product analysis, deal feeds, price alerts and sourcing management.
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 56 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 404, 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 Usability76
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 4593 tokens (~82/item across 56 items; 56 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 Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
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; "get_fba_refunds" implies "refund" 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 57 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 Sorsa MCP server?
Sorsa is a hosted endpoint at https://sorsa.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 · sorsa.app
claude mcp add --transport http app-sorsa-sorsa 'https://sorsa.app/mcp'
{
"mcpServers": {
"app-sorsa-sorsa": {
"url": "https://sorsa.app/mcp"
}
}
} {
"servers": {
"app-sorsa-sorsa": {
"type": "http",
"url": "https://sorsa.app/mcp"
}
}
} [mcp_servers.app-sorsa-sorsa] url = "https://sorsa.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"app-sorsa-sorsa": {
"type": "remote",
"url": "https://sorsa.app/mcp",
"enabled": true
}
}
} openclaw mcp add app-sorsa-sorsa --url 'https://sorsa.app/mcp' --transport streamable-http
mcp_servers:
app-sorsa-sorsa:
url: "https://sorsa.app/mcp" {
"McpServers": {
"app-sorsa-sorsa": {
"Transport": "http",
"Url": "https://sorsa.app/mcp"
}
}
} assistant mcp add app-sorsa-sorsa -t streamable-http -u 'https://sorsa.app/mcp'
{
"mcpServers": {
"app-sorsa-sorsa": {
"type": "http",
"url": "https://sorsa.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 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
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Aug 26 0
- Tool “get_store_results” rewrote its description, which is the text the model reads security
- “get_store_results” added an optional parameter “page” cosmetic
- “get_store_results” added an optional parameter “per_page” cosmetic
- 12 Aug 26 0
- The server rewrote its instructions, which are the text every model session reads security
- New tool “get_repricer_items” functional
- New tool “get_repricer_log” functional
- New tool “get_repricer_settings” functional
- New tool “get_repricer_stats” functional
- 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
- 7 Aug 26 0
- The server no longer declares the “experimental” capability 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
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://sorsa.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=sorsa.app | CN=YE2,O=Let's Encrypt,C=US | 26 Aug 2026 | 24 Nov 2026 | ECDSA 256 | ECDSA-SHA384 | 55a6fdaa87ca1e195220ed84fa04f15cf13 |
| SANs: *.sorsa.app, sorsa.app | ||||||
| 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 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of sorsa.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| sorsa.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://sorsa.app/mcp | Verified | 200 | |
| http (plaintext) | http://sorsa.app/mcp | Inconclusive | 404 |
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 →
lookup_by_ean ~71
Resolve a barcode (EAN/UPC, 8-14 digits) to an Amazon ASIN. Call when the user gives a barcode instead of an ASIN, then feed the returned ASIN into analyse_product.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | – |
| domain | string | – | – |
No output schema declared.
No examples provided.
mark_notification ~56
Mark one of the user's notifications as checked (reviewed) or unchecked. Call after the user says they've dealt with an alert, or to un-mark one.
| Name | Type | Req | Description |
|---|---|---|---|
| checked | boolean | – | – |
| notification_id | integer | yes | – |
No output schema declared.
No examples provided.
search_by_title ~85
Search Amazon by product title via Keepa and return the top matching ASINs with thumbnails. Call when the user names a product without an ASIN or barcode; present the candidates and let them pick before analysing. limit is 1-10.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | – | – |
| limit | integer | – | – |
| title | string | yes | – |
No output schema declared.
No examples provided.
start_a2a_finder_scan ~142
Start an A2A Finder scan: check a list of ASINs for profitable Amazon-to-Amazon flips across marketplaces (buy on one Amazon country, sell on another). Up to 100 ASINs. Optional `countries` = list of country codes to compare (e.g. ["UK","DE","FR"]); defaults to all. Uses the shared Keepa scan key (counts against the user's daily scan credits). Returns a job_id — poll get_a2a_finder_status(job_id) for results. Premium feature.
| Name | Type | Req | Description |
|---|---|---|---|
| asins | array | yes | – |
| countries | – | – | – |
No output schema declared.
No examples provided.
start_reverse_source_scan ~101
Start a Reverse Source scan: for each ASIN, search Google Shopping for a cheaper source than Amazon — i.e. where to buy the product to flip it. Up to 250 ASINs. Uses the shared Keepa scan key (counts against the user's daily scan credits). Returns a job_id — poll get_reverse_source_status(job_id) for results. Premium feature.
| Name | Type | Req | Description |
|---|---|---|---|
| asins | array | yes | – |
No output schema declared.
No examples provided.
start_wholesale_scan ~109
Start a Wholesale Scanner run against a supplier price list. Each item in `products` is a dict with 'title', 'price' (cost per unit), and 'ean' (barcode — needed to match, the default scan is EAN-based). Up to 500 items. Matches each product to Amazon and returns profit/ROI. Returns a job_id — poll get_wholesale_status(job_id) for results. Premium feature.
| Name | Type | Req | Description |
|---|---|---|---|
| products | array | yes | – |
No output schema declared.
No examples provided.
What is the Sorsa MCP server?
Sorsa is an MCP server listed in the public MCP registry as app.sorsa/sorsa. Amazon FBA arbitrage toolkit: product analysis, deal feeds, price alerts and sourcing management. This page covers its hosted endpoint (https://sorsa.app/mcp).
Is the Sorsa MCP server safe to use?
Sorsa scores 70 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 Sorsa MCP server expose?
Sorsa exposes 56 tools: analyse_product, analyse_product_full, get_product_sellers, get_international_prices, calculate_profit, and 51 more. Their descriptions and schemas cost roughly 4,512 tokens of context every time the server is loaded.
Does the Sorsa MCP server require authentication?
No. We connected to Sorsa without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Sorsa MCP server still maintained?
Sorsa 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.