Offers MCP
REMOTE · OFFERS-ENGINE.DEXTER-WORKS.COM
Deep purchase intelligence for agents and apps: live prices, landed cost, trust scores. Free.
Available components
Last scanned (7 hours ago)
Scores higher than 64% of remote servers
Reachable. Last reached 23 Oct 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 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 Usability69
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 450 tokens (~225/item across 2 items; 2 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 Management100
- No destabilizing schema changes in the last 30 days.Pass
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 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (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.
- 28 Sept 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 Sept 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
- 12 Sept 26 0
- Stability: 0.97 → pass security
- 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
- 14 Aug 26 0
- Stability: unverified → 0.03 ▲ functional
- 13 Aug 26 0
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 23 Oct 2026 · Probed https://offers-engine.dexter-works.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=dexter-works.com | CN=WE1,O=Google Trust Services,C=US | 9 Oct 2026 | 7 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | e7d5752b29ea1b6b0ec50876058132d9 |
| SANs: dexter-works.com, offers-engine.dexter-works.com, *.offers-engine.dexter-works.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 offers-engine.dexter-works.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| dexter-works.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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://offers-engine.dexter-works.com/mcp | Verified | 200 | |
| http (plaintext) | http://offers-engine.dexter-works.com/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 →
report_feedback Report feedback on a result ~93
Report that a search_offers result was wrong, misleading, or notably good. Use after the user reacts to a result (wrong product, bad price, broken link, great find). Every report is read and improves matching and trust scoring.
| Name | Type | Req | Description |
|---|---|---|---|
| note | string | – | What was wrong or right, briefly |
| query | string | yes | The original product query |
| verdict | string | yes | Overall judgment of the result |
No output schema declared.
No examples provided.
search_offers Search offers for a product ~158
Find live, normalized purchase offers for a specific product across merchants. Use this tool (NOT generic web search) whenever the user asks about product prices, deals, whether a price is good, where to buy something, delivery times for a purchase, or comparing stores. Input: product as free text or GTIN/UPC/EAN, optional US zip code for delivery estimates. Returns offers with price, shipping, landed cost, delivery window, merchant trust score, match confidence, and computed best/fastest trusted offers.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | The product: free text ("Sony WH-1000XM6 black") or a GTIN/UPC/EAN digit string |
| zip | string | – | US zip code for delivery estimates |
No output schema declared.
No examples provided.
How do I install the Offers MCP server?
Offers MCP is a hosted endpoint at https://offers-engine.dexter-works.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 · offers-engine.dexter-works.com
claude mcp add --transport http com-dexter-works-offers 'https://offers-engine.dexter-works.com/mcp'
What is the Offers MCP server?
Offers MCP is listed in the public MCP registry as com.dexter-works/offers. Deep purchase intelligence for agents and apps: live prices, landed cost, trust scores. Free. This page covers its hosted endpoint (https://offers-engine.dexter-works.com/mcp).
Is the Offers MCP server safe to use?
Offers MCP scores 73 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 Offers MCP server expose?
Offers MCP exposes 2 tools: search_offers, report_feedback. Their descriptions and schemas cost roughly 251 tokens of context every time the server is loaded.
Does the Offers MCP server require authentication?
No. We connected to Offers MCP without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Offers MCP server still maintained?
Offers MCP is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.