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, Recruitment, 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
33.6/100 thin ▬ flat Agent 35/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyRecruitmentStaffingHiringConversational AIAutomationSchedulingWorkflowsWebhooksMCPAgents

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 33.6/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 10.9 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 1.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 35/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. 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. Want it done for you? Prioritized profiling — $2,500 →

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.yml

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
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  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: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- 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