A1 Synthetic Oil (independent AMSOIL dealer)
REMOTE · A1SYNTHETICOIL.COM
AMSOIL catalog search, account options, and dealer-referral shopping links from A1 Synthetic Oil
Available components
Last scanned (3 hours ago)
Scores higher than 81% of remote servers
Reachable. Last reached 5 Nov 2026.
Category E-commerce
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 Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- 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 Usability64
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1436 tokens (~179/item across 8 items; 8 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management63
- Stability observed for 19 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage98
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 94% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 9 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
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.
- 5 Nov 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “account_options” rewrote its description, which is the text the model reads security
- Server version: 1.0.0+2026-10-27 → 1.0.0+2026-11-04 functional
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Oct 26 +1
- Server version: 1.0.0+2026-10-25 → 1.0.0+2026-10-27 functional
- 26 Oct 26 +1
- Server version: 1.0.0+2026-10-23 → 1.0.0+2026-10-25 functional
- 24 Oct 26 +1
- Server version: 1.0.0+2026-10-21 → 1.0.0+2026-10-23 functional
- 22 Oct 26 +1
- Server version: 1.0.0+2026-10-17 → 1.0.0+2026-10-21 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 5 Nov 2026 · Probed https://a1syntheticoil.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=a1syntheticoil.com | CN=WE1,O=Google Trust Services,C=US | 14 Sept 2026 | 13 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 22437531a839ca75132f4e5df555195f |
| SANs: a1syntheticoil.com, *.a1syntheticoil.com | ||||||
| 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 a1syntheticoil.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| a1syntheticoil.com. | 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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000 |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://a1syntheticoil.com/mcp | Verified | 200 | |
| http (plaintext) | http://a1syntheticoil.com/mcp | HTTPS enforced | 301 | https://a1syntheticoil.com/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 →
account_options Explain AMSOIL account types ~137
Who each AMSOIL account type is for, how it differs from the others, and the enrollment link with dealer referral zo=30734402: shopping without an account, Preferred Customer membership, commercial, retail, installer, and independent dealer. Also returns currentOffers: the AMSOIL promo codes running now for that account type (or all, when type is omitted), with their terms, dates, and links carrying zo=30734402.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Storefront country: US (amsoil.com) or CA (amsoil.ca). |
| type | string | – | Optional. Omit to compare all account types. |
No output schema declared.
No examples provided.
contact_dealer Contact Jeff Pittman ~42
How to reach Jeff Pittman, the independent AMSOIL dealer behind A1 Synthetic Oil, and what to include when asking for help choosing a product or account.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_product Get product details ~103
Full A1 guidance for one product: description, fitment notes, a common question, the U.S. and Canadian product codes, and the AMSOIL shopping link with dealer referral zo=30734402.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | U.S. or Canadian product code, for example ASLQT-EA or ASLQTC-EA. |
| country | string | – | Storefront country: US (amsoil.com) or CA (amsoil.ca). |
No output schema declared.
No examples provided.
list_categories List product categories ~21
Every product category with its product count and A1 catalog page.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
nearest_distribution_centers Find nearby AMSOIL distribution centers ~95
The three closest AMSOIL distribution centers in the same country as a U.S. ZIP code or Canadian postal code, by straight-line distance. These are AMSOIL facilities, not A1 locations, and the nearest one may not fulfill an order.
| Name | Type | Req | Description |
|---|---|---|---|
| postal_code | string | yes | U.S. ZIP code (for example 99156) or Canadian postal code (for example T5L 2T2). |
No output schema declared.
No examples provided.
search_products Search AMSOIL products ~189
Search the AMSOIL catalog by product name, product code, viscosity grade (for example 5W-30), product type, or category, with the same ranking and typo tolerance as the a1syntheticoil.com catalog search. Returns product codes, the A1 product page, the AMSOIL shopping link with dealer referral zo=30734402, matching categories, and related A1 guides. Does not return prices or stock.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Optional category name from list_categories, for example "Diesel oil". |
| country | string | – | Storefront country: US (amsoil.com) or CA (amsoil.ca). |
| limit | integer | – | – |
| query | string | yes | What to look for, for example "0W-20 motor oil", "diesel 15W-40", "ATF", or "EA15K13". |
No output schema declared.
No examples provided.
shop_links Get shopping links ~90
AMSOIL product links with dealer referral zo=30734402 for up to 25 product codes, plus the storefront link. The user opens each link, chooses the package size, and checks out on AMSOIL.
| Name | Type | Req | Description |
|---|---|---|---|
| codes | array | yes | U.S. or Canadian product codes. |
| country | string | – | Storefront country: US (amsoil.com) or CA (amsoil.ca). |
No output schema declared.
No examples provided.
suggest_for_vehicle Suggest AMSOIL products for a vehicle ~264
Matches the viscosity grade and specification a vehicle's owner's manual lists to AMSOIL products, with shopping links carrying dealer referral zo=30734402 and the official AMSOIL lookup link for confirming the exact fit. It does not look up vehicles: give the requirements from the manual. Without them it returns questions to ask (needs) instead of guessing.
| Name | Type | Req | Description |
|---|---|---|---|
| component | string | – | What is being serviced. |
| country | string | – | Storefront country: US (amsoil.com) or CA (amsoil.ca). |
| description | string | yes | The vehicle or machine, for example "2020 Chevy Silverado 5.3L" or "Polaris RZR 1000 transmission". Viscosity and specification may be included here. |
| from_owners_manual | boolean | – | True only when the user read the viscosity and specification from the owner's manual. |
| specifications | string | – | Specifications from the owner's manual, for example "API SP, dexos1 Gen 3" or "Dexron VI". |
| vehicle_type | string | – | Optional; detected from the description when omitted (car = car, SUV, or gasoline light truck). |
| viscosity | string | – | Viscosity grade from the owner's manual, for example 0W-20. |
No output schema declared.
No examples provided.
How do I install the A1 Synthetic Oil (independent AMSOIL dealer) MCP server?
A1 Synthetic Oil (independent AMSOIL dealer) is a hosted endpoint at https://a1syntheticoil.com/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 · a1syntheticoil.com
claude mcp add --transport http com-a1syntheticoil-a1-synthetic-oil 'https://a1syntheticoil.com/mcp'
What is the A1 Synthetic Oil (independent AMSOIL dealer) MCP server?
A1 Synthetic Oil (independent AMSOIL dealer) is an MCP server listed in the public MCP registry as com.a1syntheticoil/a1-synthetic-oil. AMSOIL catalog search, account options, and dealer-referral shopping links from A1 Synthetic Oil. This page covers its hosted endpoint (https://a1syntheticoil.com/mcp).
Is the A1 Synthetic Oil (independent AMSOIL dealer) MCP server safe to use?
A1 Synthetic Oil (independent AMSOIL dealer) scores 80 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 A1 Synthetic Oil (independent AMSOIL dealer) MCP server expose?
A1 Synthetic Oil (independent AMSOIL dealer) exposes 8 tools: search_products, get_product, list_categories, account_options, shop_links, and 3 more. Their descriptions and schemas cost roughly 941 tokens of context every time the server is loaded.
Does the A1 Synthetic Oil (independent AMSOIL dealer) MCP server require authentication?
No. We connected to A1 Synthetic Oil (independent AMSOIL dealer) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the A1 Synthetic Oil (independent AMSOIL dealer) MCP server still maintained?
A1 Synthetic Oil (independent AMSOIL dealer) is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.