# Zinvyl Marketplace Agent Gateway

> Matches sanitized business needs to fixed-price services and routes authorized agents to purchase.

- name: com.zinvyl/marketplace
- version: 1.7.0
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.zinvyl%2Fmarketplace
- tools: https://api.protogrid.dev/v1/servers/com.zinvyl%2Fmarketplace/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "marketplace": {
      "type": "http",
      "url": "https://zinvyl.com/marketplace/agent-mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 99
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-97% +updated-6d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 14 of 14 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 7,262 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 25 (weight 15)

- warn `stability.changes`: 70 tool changes in 30 days
- fail `stability.rug_pull`: 2 tools kept their name but changed most of their description in 30 days; review before trusting them

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 14, about 7,262 tokens to load them all
- tool set hash: 688c4a0a5cccea28942da1175f8cc943
- tools last changed: 2026-10-19T08:01:51.018Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.zinvyl/marketplace.svg)](https://protogrid.dev/servers/com.zinvyl/marketplace)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-19 `create_purchase_intent` changed (description)
  - before: Compatibility alias for existing clients; new integrations should use buy_service. Use only after selecting one offer when the calling agent has explicit delegated authority for that exact fixed fee. Creates the governed purchase intent and quote, then returns the no-human Stripe MPP route plus a human Checkout fallback. It does not itself claim payment or start work.
  - after: Compatibility alias for existing clients; new integrations should use buy_service. Use only after selecting one offer when the calling agent has explicit delegated authority for that exact fixed fee. Creates the governed purchase intent and quote, then returns a Stripe MPP route that is no-human only with a compatible delegated wallet, plus a human Checkout fallback. It does not itself claim payment or start work.
- 2026-10-18 `recover_abandoned_purchase` added
  - Resumes the original idempotent purchase intent only for the same authenticated buyer, signed mandate, request ID, offer, sanitized scope, amount, currency, and current terms after its 30-minute reservation expired without funding. It never creates a second transaction identity or marks payment complete.
- 2026-10-18 `buy_service` changed (inputSchema)
- 2026-10-18 `buy_matching_service` changed (inputSchema)
- 2026-10-18 `resume_agent_purchase` added
  - Read-only durable continuation. Returns the exact observed stop and next executable action for a previously returned opaque continuation token. It creates no purchase, checkout, charge, or order.
- 2026-10-18 `preflight_agent_purchase` added
  - Read-only transaction check. Verifies product match, credential, signed mandate when supplied or required, exact offer allowlist, price ceiling, current terms, sanitized scope, capacity, and payment-route readiness. It creates no intent, checkout, charge, order, or telemetry event.
- 2026-10-17 `buy_service` changed (inputSchema)
- 2026-10-17 `buy_matching_service` changed (inputSchema)
- 2026-10-17 `acknowledge_purchase_offer` added
  - Records that an operator-controlled agent actually received and retained one exact offer and registered a durable return method. This creates no order, grants no authority, stores no callback URL, and never proves payment.
- 2026-10-16 `prepare_purchase_route` changed (annotations)

Full history: https://api.protogrid.dev/v1/servers/com.zinvyl%2Fmarketplace/changes

## Remotes

- https://zinvyl.com/marketplace/agent-mcp (streamable-http, auth none, reachable true, uptime30d 0.9741379)

## Packages

_none_

## Tools (14)

- `acknowledge_purchase_offer`: Records that an operator-controlled agent actually received and retained one exact offer and registered a durable return method. This creates no order, grants no authority, stores no callback URL, and never proves payment.
- `buy_matching_service`: One-call path for a buyer agent that has explicit delegated authority for a stated allowlist of exact Zinvyl offers. Zinvyl matches one sanitized outcome and creates a bounded purchase intent only when the matched offer is allowlisted and its exact fee fits the delegated ceiling. A catalog gap or authority mismatch creates no order or payment claim.
- `buy_service`: Five-field, retry-safe agent purchase path. Creates one bounded intent only when delegated authority covers the exact fee. Reusing buyer.request_id for an unchanged purchase returns the same intent. Returns Stripe MPP plus a direct human approval fallback and never claims payment before ledger verification.
- `create_purchase_intent`: Compatibility alias for existing clients; new integrations should use buy_service. Use only after selecting one offer when the calling agent has explicit delegated authority for that exact fixed fee. Creates the governed purchase intent and quote, then returns a Stripe MPP route that is no-human only with a compatible delegated wallet, plus a human Checkout fallback. It does not itself claim payment or start work.
- `find_service`: Optional demand-feedback route. Describe one authorized sanitized business need once. Zinvyl returns the best fixed-scope offer and next purchase action, or records an unsupported need as privacy-minimized product telemetry. For read-only matching, start with qualify_task.
- `get_acceptance_tests`: Use after qualify_task or list_offers identifies an offer and detailed scope review is useful. Returns the exact delivery acceptance tests, exclusions, and evidence boundaries that limit what Zinvyl may claim for that offer.
- `get_purchase_requirements`: Use after selecting an offer. Returns the exact price, five-field buy_service contract, delegated-authority requirements, machine-payment route, capacity limits, and authoritative funding rule without creating an intent.
- `list_offers`: Use when comparing Zinvyl's full eight-offer catalog. For a single sanitized need, start with read-only qualify_task. Returns price, delivery window, required inputs, exclusions, and direct intake URL; use get_acceptance_tests only after selecting an offer.
- `match_or_capture_demand`: Compatibility alias for existing clients; new integrations should use qualify_task first and find_service only after consent. Returns an existing fixed offer when one matches. Otherwise records privacy-minimized product-demand telemetry for owner review; it creates no order, quote, outreach, funding claim, or delivery commitment.
- `preflight_agent_purchase`: Read-only transaction check. Verifies product match, credential, signed mandate when supplied or required, exact offer allowlist, price ceiling, current terms, sanitized scope, capacity, and payment-route readiness. It creates no intent, checkout, charge, order, or telemetry event.
- `prepare_purchase_route`: Compatibility inspection alias for existing clients; new integrations should use get_purchase_requirements and buy_service. 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.
- `qualify_task`: 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.
- `recover_abandoned_purchase`: Resumes the original idempotent purchase intent only for the same authenticated buyer, signed mandate, request ID, offer, sanitized scope, amount, currency, and current terms after its 30-minute reservation expired without funding. It never creates a second transaction identity or marks payment complete.
- `resume_agent_purchase`: Read-only durable continuation. Returns the exact observed stop and next executable action for a previously returned opaque continuation token. It creates no purchase, checkout, charge, or order.