Popp website screenshot

Popp

Popp (Popp AI) is an API-first conversation engine for staffing and recruitment firms. It automates high-volume candidate interactions — screening tens of thousands of applicants, collecting and validating right-to-work and certification documents, running AI candidate analysis, auto-scheduling interviews with calendar sync, and re-qualifying dormant candidate databases — through a drag-and-drop workflow builder and a REST API. The platform exposes conversations, campaigns, documents, analysis, scheduling, and multi-step workflows over https://api.joinpopp.com/v1 with API-key authentication, SHA256-signed webhooks across four event categories, and a published remote MCP server for agent access. Backed by Techstars.

Popp publishes 1 API on the APIs.io network. Tagged areas include Company, Recruiting, Staffing, Hiring, and Conversational AI.

The Popp catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Popp’s developer surface includes documentation, API reference, getting-started guide, signup flow, authentication, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub
29.3/100 thin ▬ flat Agent 26/100 agent aware Front door AI 2/6 trace saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0
1 APIs 1 MCP Servers
CompanyRecruitingStaffingHiringConversational AIAutomationSchedulingWorkflowsWebhookMCPAgents

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0
Composite quality — 29.3/100 · thin
Contract Quality 8.3 / 21
Developer Ergonomics 4.5 / 17
Access Clarity 3.6 / 17
Operational Transparency 0.9 / 11
Contract Governance 0.5 / 10
Discoverability 6.1 / 9
Regulatory Posture 3.7 / 15
Agent readiness — 26/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 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 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
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/.
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 github.com/api-evangelist/popp: open an issue to ask a question, or submit a pull request to add artifacts. 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.

Popp API

REST API for the Popp recruitment conversation engine — conversations, campaigns, documents, analysis, scheduling/calendar, and workflow automation, authenticated with an x-api-...

MCP Servers 1

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

Popp MCP Server

Popp AI hosts a remote MCP server that lets AI code editors (Cursor, Windsurf) and general-purpose agents (Claude Desktop) interact directly with the Popp API and documentation....

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Popp Webhooks

ASYNCAPI

Security Posture 2

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

Popp Authentication

apiKey · 2 schemes

SECURITY

Popp Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Webhooks
Webhooks
 Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
DataModel
 Conformance
Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: popp
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/popp.png
name: Popp
description: Popp (Popp AI) is an API-first conversation engine for staffing and recruitment firms. It automates high-volume
  candidate interactions — screening tens of thousands of applicants, collecting and validating right-to-work and certification
  documents, running AI candidate analysis, auto-scheduling interviews with calendar sync, and re-qualifying dormant candidate
  databases — through a drag-and-drop workflow builder and a REST API. The platform exposes conversations, campaigns, documents,
  analysis, scheduling, and multi-step workflows over https://api.joinpopp.com/v1 with API-key authentication, SHA256-signed
  webhooks across four event categories, and a published remote MCP server for agent access. Backed by Techstars.
url: https://raw.githubusercontent.com/api-evangelist/popp/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Recruiting
- Staffing
- Hiring
- Conversational AI
- Automation
- Scheduling
- Workflows
- Webhook
- MCP
- Agents
tags_raw:
- Company
- Recruitment
- Staffing
- Hiring
- Conversational AI
- Automation
- Scheduling
- Workflows
- Webhooks
- MCP
- Agents
apis:
- name: Popp API
  description: REST API for the Popp recruitment conversation engine — conversations, campaigns, documents, analysis, scheduling/calendar,
    and workflow automation, authenticated with an x-api-key + x-organization-id header pair.
  humanURL: https://joinpopp.com/api
  baseURL: https://api.joinpopp.com/v1
  properties:
  - type: Documentation
    url: https://docs.joinpopp.com/
  - type: APIReference
    url: https://docs.joinpopp.com/docs/quickstart
  - type: GettingStarted
    url: https://docs.joinpopp.com/docs/quickstart
  - type: Authentication
    url: authentication/popp-authentication.yml
  - type: MCPServer
    url: mcp/popp-mcp.yml
  - type: Webhooks
    url: asyncapi/popp-webhooks.yml
  - type: Conventions
    url: conventions/popp-conventions.yml
  - type: ErrorCatalog
    url: errors/popp-problem-types.yml
  - type: Lifecycle
    url: lifecycle/popp-lifecycle.yml
  - type: DataModel
    url: data-model/popp-data-model.yml
  - type: Conformance
    url: conformance/popp-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://joinpopp.com/
- type: DeveloperPortal
  url: https://app.joinpopp.com/developer/keys
- type: Documentation
  url: https://docs.joinpopp.com/
- type: APIReference
  url: https://docs.joinpopp.com/docs/quickstart
- type: GettingStarted
  url: https://docs.joinpopp.com/docs/quickstart
- type: SignUp
  url: https://ai.joinpopp.com/login
- type: TermsOfService
  url: https://joinpopp.com/terms-of-service
- type: PrivacyPolicy
  url: https://joinpopp.com/privacy-policy
- type: MCPServer
  url: mcp/popp-mcp.yml
- type: Authentication
  url: authentication/popp-authentication.yml
- type: Webhooks
  url: asyncapi/popp-webhooks.yml
- type: Conventions
  url: conventions/popp-conventions.yml
- type: ErrorCatalog
  url: errors/popp-problem-types.yml
- type: Lifecycle
  url: lifecycle/popp-lifecycle.yml
- type: DataModel
  url: data-model/popp-data-model.yml
- type: Conformance
  url: conformance/popp-conformance.yml
- type: DomainSecurity
  url: security/popp-domain-security.yml
- type: LLMsTxt
  url: llms/popp-llms.txt
x-enrichment:
  date: '2026-07-20'
  status: enriched
  pass: local-v1
  artifacts_added: 10

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