Zinvyl Marketplace Agent Gateway
REMOTE · ZINVYL.COM · SCANNED SEP 27
Private work routing for authorized buyers and agents, with Zinvyl as the first enabled supplier.
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 Security66
- 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 4 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 is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability85
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 405 tokens (~101/item across 4 items; 4 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management20
- Stability observed for 6 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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 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
How do I install the Zinvyl Marketplace Agent Gateway MCP server?
Zinvyl Marketplace Agent Gateway is a hosted endpoint at https://zinvyl.com/marketplace/agent-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 · zinvyl.com
claude mcp add --transport http com-zinvyl-marketplace 'https://zinvyl.com/marketplace/agent-mcp'
{
"mcpServers": {
"com-zinvyl-marketplace": {
"url": "https://zinvyl.com/marketplace/agent-mcp"
}
}
} {
"servers": {
"com-zinvyl-marketplace": {
"type": "http",
"url": "https://zinvyl.com/marketplace/agent-mcp"
}
}
} [mcp_servers.com-zinvyl-marketplace] url = "https://zinvyl.com/marketplace/agent-mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-zinvyl-marketplace": {
"type": "remote",
"url": "https://zinvyl.com/marketplace/agent-mcp",
"enabled": true
}
}
} openclaw mcp add com-zinvyl-marketplace --url 'https://zinvyl.com/marketplace/agent-mcp' --transport streamable-http
mcp_servers:
com-zinvyl-marketplace:
url: "https://zinvyl.com/marketplace/agent-mcp" {
"McpServers": {
"com-zinvyl-marketplace": {
"Transport": "http",
"Url": "https://zinvyl.com/marketplace/agent-mcp"
}
}
} assistant mcp add com-zinvyl-marketplace -t streamable-http -u 'https://zinvyl.com/marketplace/agent-mcp'
{
"mcpServers": {
"com-zinvyl-marketplace": {
"type": "http",
"url": "https://zinvyl.com/marketplace/agent-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.
- 27 Sept 26 +1
- Tool “list_offers” rewrote its description, which is the text the model reads security
- 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
- 24 Sept 26 +1
- Tool “list_offers” rewrote its description, which is the text the model reads security
- Schema quality: 88 → 101 ▼ functional
- “prepare_purchase_route” reworded the description of “offer_id” cosmetic
- “get_acceptance_tests” reworded the description of “offer_id” cosmetic
- 22 Sept 26 +1
- Stability: unverified → 0.03 ▲ functional
- 21 Sept 26 69
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 27 Sept 2026 · Probed https://zinvyl.com/marketplace/agent-mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=zinvyl.com | CN=WE1,O=Google Trust Services,C=US | 23 Aug 2026 | 21 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | ae1e2ea3f3b4471413348f253f978bc4 |
| SANs: zinvyl.com, *.zinvyl.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 secure
Validation of zinvyl.com. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| zinvyl.com. | present | 2371 | 13 | Verified |
| zinvyl.com. | Verified address RRset verified with the apex keys |
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=5184000 |
| content-security-policy | default-src 'self'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; img-src 'self' data: https://www.googletagmanager.com https://*.google-analytics.com https://*.analytics.google.com; font-src 'self' data:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' https://www.googletagmanager.com https://*.google-analytics.com https://*.analytics.google.com; frame-src 'self'; connect-src 'self' https://www.googletagmanager.com https://*.google-analytics.com https://*.analytics.google.com |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=(), payment=(self) |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://zinvyl.com/marketplace/agent-mcp | Verified | 200 | |
| http (plaintext) | http://zinvyl.com/marketplace/agent-mcp | HTTPS enforced | 301 | https://zinvyl.com/marketplace/agent-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 →
get_acceptance_tests Get offer acceptance tests ~115
Use after list_offers or qualify_task identifies an offer. Returns the exact delivery acceptance tests, exclusions, and evidence boundaries that limit what Zinvyl may claim for that offer.
| Name | Type | Req | Description |
|---|---|---|---|
| offer_id | string | yes | Exact published offer ID returned by list_offers or qualify_task, including zinvyl.freight.workflow-audit.v1, zinvyl.freight.full-workflow-audit.v1, zinvyl.api.failure-triage.v1, and zinvyl.api.workf… |
No output schema declared.
No examples provided.
list_offers List Zinvyl fixed-scope offers ~54
Use this first to compare Zinvyl's six fixed-scope offers. Returns each offer's price, delivery window, required inputs, exclusions, and direct intake URL; use get_acceptance_tests only after selecting an offer.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
prepare_purchase_route Prepare an authorized funding route ~157
Use only after selecting an offer and confirming explicit purchasing authority. Returns the purchase-intent schema and payment-route API endpoint; it does not create, fund, verify, or start an order.
| Name | Type | Req | Description |
|---|---|---|---|
| human_authorized_to_fund | boolean | yes | True only when an authorized representative approved the request or an authorized purchasing agent is acting within explicit delegated authority for this offer, amount, and material limits. |
| offer_id | string | yes | Exact published offer ID returned by list_offers or qualify_task, including zinvyl.freight.workflow-audit.v1, zinvyl.freight.full-workflow-audit.v1, zinvyl.api.failure-triage.v1, and zinvyl.api.workf… |
No output schema declared.
No examples provided.
qualify_task Qualify a bounded task ~79
Use when a buyer's sanitized problem is not yet mapped to an offer. Returns one fixed offer ID, a broader-service route, or a scope-reduction decision; it performs no diagnosis and creates no order.
| Name | Type | Req | Description |
|---|---|---|---|
| summary | string | yes | Sanitized expected-versus-actual outcome. Do not include credentials, tokens, personal data, or production secrets. |
No output schema declared.
No examples provided.
What is the Zinvyl Marketplace Agent Gateway MCP server?
Zinvyl Marketplace Agent Gateway is an MCP server listed in the public MCP registry as com.zinvyl/marketplace. Private work routing for authorized buyers and agents, with Zinvyl as the first enabled supplier. This page covers its hosted endpoint (https://zinvyl.com/marketplace/agent-mcp).
Is the Zinvyl Marketplace Agent Gateway MCP server safe to use?
Zinvyl Marketplace Agent Gateway 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 Zinvyl Marketplace Agent Gateway MCP server expose?
Zinvyl Marketplace Agent Gateway exposes 4 tools: list_offers, qualify_task, get_acceptance_tests, prepare_purchase_route. Their descriptions and schemas cost roughly 405 tokens of context every time the server is loaded.
Does the Zinvyl Marketplace Agent Gateway MCP server require authentication?
No. We connected to Zinvyl Marketplace Agent Gateway without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Zinvyl Marketplace Agent Gateway MCP server still maintained?
Zinvyl Marketplace Agent Gateway is still listed as active in the MCP registry. We last reached this channel on 27 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.