Atlas entry
zinvyl. com
25 capabilities over A2A and MCP. The inventory is incomplete. First atlas observation.
25 capabilities, 14 of them tools. 3 only read. 2 change records. 9 have no reading.◇
AI reading, beta. side-effects v1 on claude-haiku-5.5, calibrated on MCP (golden-3). Only readings above a measured precision count. Counts are tools, not calls: no tool was called.
AI readings summary · beta
The service lists 14 tools, and 5 have AI readings.
create_purchase_intent and acknowledge_purchase_offer are read as creating records.
get_purchase_requirements, get_acceptance_tests and list_offers are read as read-only.
Written by code from the AI readings on this page: it groups them and says nothing they do not.
What an agent can do here
AI readings, beta · Readings on 5 of 14 MCP tools.
Moves money
0
No tool read this way.
Deletes or cancels records
0
No tool read this way.
Sends messages to people
0
No tool read this way.
Changes permissions
0
No tool read this way.
Runs code
0
No tool read this way.
Should ask a person first
0
No tool read this way.
No counted reading 9 tools No reading was counted, so any effect above is possible for them: buy_matching_service, buy_service, find_service, match_or_capture_demand, preflight_agent_purchase, prepare_purchase_route, qualify_task, recover_abandoned_purchase, resume_agent_purchase.
What changed
First atlas observation. Atlas history
Look first
AI reading, beta: AI adds items here; it never removes one.
No tool is read as one of the six effects. A zero is a count, not a clearance.
Surfaces
5 protocols checked
| ARD | invalid | 1 retrieved artifact |
|---|---|---|
| A2A | Valid | 1.0 · 6 skills |
| MCP | Valid | 2026-07-28 · 14 tools · 3 resources · 2 prompts |
| OpenAPI | Not detected | 0 operations |
| WebMCP | Not detected | 0 declarative form tools · experimental |
Exact states and meaning
- ARDfailed
Exact state: invalid · Revision 0.9 draft · 1 retrieved artifact
InterfaceDelta retained the machine state “invalid” without assigning an additional meaning.
Not observed / not fetched
- A2Aobserved
Exact state: valid · Revision 1.0 · 6 skills
A usable protocol document was retrieved and validated.
Directly observed
- MCPobserved
Exact state: valid · Revision 2026-07-28 · 14 tools · 3 resources · 2 prompts
A usable protocol document was retrieved and validated.
Directly observed
- OpenAPIabsent
Exact state: not detected · 0 operations
No endpoint was established from the evidence and scope that InterfaceDelta inspected.
Not detected does not prove that no endpoint exists.
Not observed / not fetched
- WebMCPabsent
Exact state: not detected · 0 declarative form tools · experimental
No named declarative WebMCP form tools were observed in the origin root HTML.
Script-registered tools and other pages are not observed, so this does not mean the site has no WebMCP tools.
Not observed / not fetched
Capabilities
Showing 25 of 25.
| Tool and inputs | ◇ AI reading, beta · confidence | ||||||
|---|---|---|---|---|---|---|---|
| Read as none of the six 5 Not a clearance. | |||||||
| acquisition_source, allowed_offer_ids, approval_mode, continuation_method and 7 more | Creates records0.81 | ||||||
| |||||||
| bounded_scope_confirmed*, buyer_contact_email*, buyer_organization*, delegated_purchase_authority_confirmed* and 3 more | Creates records0.80 | ||||||
| |||||||
| offer_id* | Reads only0.80 | ||||||
| |||||||
| offer_id* | Reads only0.87 | ||||||
| |||||||
| no inputs | Reads only0.86 | ||||||
| |||||||
| No counted reading 9 No reading was counted, so any effect is possible. | |||||||
| buyer*, purchase_authority*, purchase_note, safe_scope_confirmed* and 1 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| buyer*, offer_id*, purchase_authority*, purchase_note and 1 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| agent_tool_type, authorized_to_share*, budget_cents, category_hint and 7 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| agent_tool_type, authorized_to_share*, budget_cents, category_hint and 7 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| buyer*, purchase_authority*, purchase_note, safe_scope_confirmed* and 1 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| human_authorized_to_fund*, offer_id* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| summary* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| buyer*, offer_id*, previous_intent_id*, purchase_authority* and 2 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| acquisition_source, continuation_token*, offer_id* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| A2A skills 6 Not read by AI. | |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| MCP resources 3 Not read by AI. | |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| MCP prompts 2 Not read by AI. | |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
Read as this effect No reading: unknown Not read as this effect◇ AI readings, beta. A zero is a count, not a clearance.
OpenAPI operations 0+ observed
Inventory incomplete. OpenAPI operations could not be fully inventoried: the ARD document was not valid, so declarations made there were not read.
None recorded in this Passport.
The atlas shows each capability by its plain identifier, inputs and declared sign-in. Publisher descriptions, paths, links and source evidence are not published here.
The comparison with the previous observation is shown only to the account that recorded it.
Atlas history
1 observation
- 25 capabilities · A2A, MCP 2026-07-28 and UCP · MCP endpoint validFirst observation
Fingerprint and versions
- Fingerprint
c12a3649203e792c654562ae45188c19f628636f41c782daf830292d59a458f0- Passport schema
- 0.6.0, passport-semantic-v5
- Consistency
- MCP_PROMPTS_ADVERTISEMENT_LIST: match · MCP_RESOURCES_ADVERTISEMENT_LIST: match · MCP_TOOLS_ADVERTISEMENT_LIST: match · OPENAPI_MCP_EXPLICIT_MAPPING: not applicable
Each class compares an observation with the previous atlas observation. Runs of unchanged observations are grouped. Struck values are what the previous observation recorded; inserted values are what this one recorded.
Declared and observed
14 tools declare hints; the AI readings agree with all 5 that have a reading.
A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.
About this entry
com.zinvyl/marketplaceListedOfficial MCP Registry · first listed 27 Sep 2026 · last listed 3 Nov 2026
Passive observations of a public interface listed in the Official MCP Registry. An observation does not verify security, ownership or compliance, and InterfaceDelta assigns no scores or rankings. Methodology · Report an inaccuracy · Ask for removal
Identity and snapshot
- Target key
sha256:48b65feb95f623bdbf03c34a46d77c292e7eea1d3fe48c6525443bba846254aa- Locator SHA-256
10c702d922ef090ef82467b4c28970f700f33fb5c5caee63c3594f35b2cb688f- Snapshot generated
- 11 Nov 2026, 22:36 UTC
The entry is one exact observed target, not a real-world service identity, and implies no ownership. Endpoint paths are not published; the locator hash lets an operator confirm their own URL.

