Atlas entry
whichpost.
23 capabilities over MCP. First atlas observation.
23 capabilities, 18 of them tools. 9 only read. 4 only compute. 2 change records. 3 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 18 tools, and 15 have AI readings.
refresh_report and mark_event are read as creating records.
9 tools are read as read-only, including get_latest_report, get_pricing and list_events.
get_pricing: Returns the public plans with US dollar prices, their intended uses and current offers; no sign-in needed.
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 15 of 18 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 3 tools No reading was counted, so any effect above is possible for them: compare_creators, get_faq, privacy_and_security.
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 | Not found | No document retrieved |
|---|---|---|
| A2A | Not found | 0 skills |
| MCP | Valid | 2026-07-28 · 18 tools · 5 resources · prompts not advertised |
| OpenAPI | Not detected | 0 operations |
| WebMCP | Not detected | 0 declarative form tools · experimental |
Exact states and meaning
- ARDabsent
Exact state: not found · No document retrieved
The supported discovery location returned no matching document.
Not found does not prove the service exposes no such interface elsewhere.
Not observed / not fetched
- A2Aabsent
Exact state: not found · 0 skills
The supported discovery location returned no matching document.
Not found does not prove the service exposes no such interface elsewhere.
Not observed / not fetched
- MCPobserved
Exact state: valid · Revision 2026-07-28 · 18 tools · 5 resources · prompts not advertised
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 23 of 23.
| Tool and inputs | ◇ AI reading, beta · confidence | ||||||
|---|---|---|---|---|---|---|---|
| Read as none of the six 15 Not a clearance. | |||||||
| Returns a public overview of WhichPost's purpose, intended audience, team reporting value, and getting-started guidance.no inputs | Computes only, changes nothing0.82 | ||||||
| |||||||
| Lists the missing data that would narrow a campaign report's ranges, such as creators to retest and unread post views.report_id | Reads only0.80 | ||||||
| |||||||
| Assesses whether a product fits a user's business from revenue source, creator volume and sign-up rate, giving a plan and next step.apps, creators_per_month, has_paying_customers, history_days_before_campaign and 4 more | Computes only, changes nothing0.87 | ||||||
| |||||||
| no inputs | Reads only0.88 | ||||||
| |||||||
| Summarizes why a named creator received their decision, using the report's own figures, and what would refine it.creator*, report_id | Reads only0.88 | ||||||
| |||||||
| report_id | Reads only0.88 | ||||||
| |||||||
| Returns the public plans with US dollar prices, their intended uses and current offers; no sign-in needed.no inputs | Reads only0.93 | ||||||
| |||||||
| no inputs | Computes only, changes nothing0.85 | ||||||
| |||||||
| no inputs | Computes only, changes nothing0.80 | ||||||
| |||||||
| limit | Reads only0.90 | ||||||
| |||||||
| decision, limit, report_id | Reads only0.88 | ||||||
| |||||||
| Lists event entries such as launches, press pieces, newsletters, ad pushes and promotions from the linked workspace, sorted oldest first.no inputs | Reads only0.90 | ||||||
| |||||||
| Returns the name and report count of the one workspace this connection can access, plus a link to its latest report.no inputs | Reads only0.91 | ||||||
| |||||||
| first_day*, kind*, label, last_day | Creates records0.90 | ||||||
| |||||||
| no inputs | Creates records0.82 | ||||||
| |||||||
| No counted reading 3 No reading was counted, so any effect is possible. | |||||||
| Assesses whether 2-5 creators' cost per paying user ranges differ enough to pick the cheaper one, alongside paying users and revenue.creators*, report_id | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| Returns answers to common questions, optionally filtered to one topic, using public information and requiring no sign-in.topic | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| Summarizes WhichPost's data handling: read-only keys, stored data, no tracking, processing locations and assistant access limits.no inputs | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| MCP resources 5 Not read by AI. | |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| 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.
Not observed in this Passport: A2A skills, MCP prompts, OpenAPI operations.
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
- 23 capabilities · MCP 2026-07-28 · MCP endpoint validFirst observation
Fingerprint and versions
- Fingerprint
da16fc2319740f46511f2bd977df27dabd9ee67efa2d1a2d7d65bff85f0983af- Passport schema
- 0.5.0, passport-semantic-v4
- Consistency
- MCP_PROMPTS_ADVERTISEMENT_LIST: not applicable · 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
18 tools declare hints; the AI readings agree with all 15 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
app.whichpost/whichpostListedOfficial MCP Registry · first listed 30 Oct 2026 · last listed 30 Oct 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
sha256:107334f9311e8730e54ff98fd60da3235427da72a7638ab6175cc2cf255e6a8a- Locator SHA-256
e533dec379ffea7345eb326ecabc4eb2ed9cc55f0e5e20750e033784cbbee32d- Snapshot generated
- 12 Nov 2026, 05:45 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.