whichpost-app

WhichPost is a SaaS platform that helps creators and brands understand which of their social media posts generate paying customers. By connecting a read‑only Stripe or RevenueCat key, the service reads checkout, trial, subscription and refund events and applies in‑house statistical models to estimate the number of paying customers attributable to each post. The platform offers a free analyzer that works without an account, and a paid workspace for ongoing campaign tracking. It emphasizes privacy by not storing personal identifiers and provides a clear pricing page. The service is hosted at whichpost.app.

whichpost-app is listed with 1 API on the APIs.io network. Tagged areas include Company, Analytics, CreatorEconomy, Revenue, and SaaS.

The whichpost-app catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

whichpost-app’s developer surface includes documentation, API reference, pricing, getting-started guide, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.7/100 thin Agent 29/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API 1 MCP Servers 3 Agent Skills

Company AnalyticsCreatorEconomyRevenueSaaSMarketing

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 36.7/100 · thin

Contract Quality 1.4 / 21

Developer Ergonomics 6.0 / 17

Access Clarity 13.0 / 17

Operational Transparency 1.2 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 0 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 6.7 — up to +23.3 composite points
Developer Ergonomics scores 35.0 — up to +13.0 composite points
Operational Transparency scores 10.5 — up to +11.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/whichpost-app/apis.yml: open an issue on github.com/api-evangelist/whichpost-app to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

WhichPost API

Practical guides for apps, clipping buyers and agencies that pay creators: what to pay, how to measure posts, and when to rebook or pause.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

whichpost-app MCP Server

Remote MCP server at whichpost.app.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

whichpost-app-locales-skill

AGENT SKILL

whichpost-app-pricing-skill

AGENT SKILL

whichpost-app-waitlist-skill

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Whichpost App Plans Pricing

4 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Whichpost App Context

1 classes · 1 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

whichpost-app API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Whichpost App Domain Security

TLSv1.3 · HSTS

SECURITY

Whichpost App Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Whichpost App Agentic Access

3 operations · 1 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Access & Security 4

Authentication, authorization, and security posture

Security

Security

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: whichpost-app
name: whichpost-app
description: WhichPost is a SaaS platform that helps creators and brands understand which of their social media posts generate
  paying customers. By connecting a read‑only Stripe or RevenueCat key, the service reads checkout, trial, subscription and
  refund events and applies in‑house statistical models to estimate the number of paying customers attributable to each post.
  The platform offers a free analyzer that works without an account, and a paid workspace for ongoing campaign tracking. It
  emphasizes privacy by not storing personal identifiers and provides a clear pricing page. The service is hosted at whichpost.app.
url: https://artifacts.apis.io/whichpost-app/apis.yml
image: https://whichpost.app/assets/og/default.png?v=5afd54ed77
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Company
- Analytics
- CreatorEconomy
- Revenue
- SaaS
- Marketing
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/whichpost-app-agentic-access.yml
- type: Plans
  url: plans/whichpost-app-plans-pricing.yml
- type: Spectral
  url: rules/whichpost-app-rules.yml
- type: JSONLD
  url: json-ld/whichpost-app-context.jsonld
- type: Vocabulary
  url: vocabulary/whichpost-app-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/whichpost-app-data-model.yml
- type: Security
  url: security/whichpost-app-vulnerability-disclosure.yml
- type: ErrorCatalog
  url: errors/whichpost-app-problem-types.yml
- type: Conformance
  url: conformance/whichpost-app-conformance.yml
- type: LLMsTxt
  url: llms/whichpost-app-llms.txt
- type: ToolCrosswalk
  url: mcp/whichpost-app-tool-crosswalk.yml
- type: MCPServer
  url: mcp/whichpost-app-mcp.yml
- type: SecurityTxt
  url: well-known/whichpost-app-security.txt
- type: WellKnown
  url: well-known/whichpost-app-well-known.yml
- type: Hosts
  url: hosts/whichpost-app-hosts.yml
- type: Vendors
  url: vendors/whichpost-app-vendors.yml
- type: Documentation
  url: https://whichpost.app/guides
- type: APIReference
  url: https://whichpost.app/llms.txt
- type: VulnerabilityDisclosure
  url: security/whichpost-app-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/whichpost-app-domain-security.yml
- type: Website
  url: https://whichpost.app/
- type: Pricing
  url: https://whichpost.app/#pricing
- type: TermsOfService
  url: https://whichpost.app/terms
- type: PrivacyPolicy
  url: https://whichpost.app/privacy
- type: GettingStarted
  url: https://whichpost.app/analyze
- type: SignUp
  url: https://whichpost.app/signin
apis:
- name: WhichPost API
  description: 'Practical guides for apps, clipping buyers and agencies that pay creators: what to pay, how to measure posts,
    and when to rebook or pause.'
  humanURL: https://whichpost.app/guides
  baseURL: https://whichpost.app
  aid: whichpost-app:whichpost-api
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

whichpost-app API — frequently asked questions

Does whichpost-app have an API?

Yes. APIs.io lists 1 API from whichpost-app, including WhichPost API.

How much does the whichpost-app API cost?

APIs.io lists 4 pricing plans for whichpost-app, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does whichpost-app have an MCP server?

Yes. APIs.io lists 1 MCP server for whichpost-app: Remote MCP server at whichpost.app.

Is the whichpost-app API ready for AI agents?

whichpost-app has a Kin Score of 36.7 out of 100 (thin) and an Agent Readiness score of 28.6 (agent-ready), scored by API Evangelist on 2026-10-31.

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
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