Puddle

Puddle is a technical-interview platform for evaluating software-engineering candidates in real-world, AI-enabled conditions. Candidates work through live coding assessments inside a sandboxed environment with an integrated IDE and terminal, and are free to use modern AI tools (such as Claude Code) during the session. Puddle captures detailed signals about how a candidate approaches a problem across structured phases (problem discussion, architecture, implementation, and debrief) and produces an outcome report with confidence scores, focus and iteration-pace metrics, and hiring recommendations. It is sold as a B2B SaaS recruitment-assessment tool via demo and early-access waitlist. Puddle was surfaced as an a16z portfolio company and added to the API Evangelist network. As of this pass Puddle publishes no public API, developer documentation, SDK, or OpenAPI surface; the profile below captures its verifiable public web and security presence.

Puddle is profiled on the APIs.io network. Tagged areas include Company, Technical Interviews, Hiring, Developer Assessment, and Recruiting.

🌐 Visit website 📡 Source on GitHub
10.8/100 minimal ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessApproval
0 APIs
CompanyTechnical InterviewsHiringDeveloper AssessmentRecruitingAICoding Assessment

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 10.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 2.6 / 20
Operational Transparency 1.4 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 7/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 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/puddle: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 2

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

Puddle Domain Security

TLSv1.3 · DMARC

SECURITY

Puddle Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login
Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 SecurityTxt
SecurityTxt
 Security
Security

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: puddle
accessModel:
  pricing: unknown
  onboarding: approval
  trial: false
  try_now: false
  public: false
  label: Requires approval
  confidence: medium
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/puddle.png
name: Puddle
description: Puddle is a technical-interview platform for evaluating software-engineering candidates in real-world, AI-enabled
  conditions. Candidates work through live coding assessments inside a sandboxed environment with an integrated IDE and terminal,
  and are free to use modern AI tools (such as Claude Code) during the session. Puddle captures detailed signals about how
  a candidate approaches a problem across structured phases (problem discussion, architecture, implementation, and debrief)
  and produces an outcome report with confidence scores, focus and iteration-pace metrics, and hiring recommendations. It
  is sold as a B2B SaaS recruitment-assessment tool via demo and early-access waitlist. Puddle was surfaced as an a16z portfolio
  company and added to the API Evangelist network. As of this pass Puddle publishes no public API, developer documentation,
  SDK, or OpenAPI surface; the profile below captures its verifiable public web and security presence.
url: https://raw.githubusercontent.com/api-evangelist/puddle/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Technical Interviews
- Hiring
- Developer Assessment
- Recruiting
- AI
- Coding Assessment
apis: []
common:
- type: VulnerabilityDisclosure
  url: security/puddle-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/puddle-domain-security.yml
- type: Website
  url: https://usepuddle.com
- type: SecurityTxt
  url: well-known/puddle-security.txt
- type: Security
  url: well-known/puddle-security.txt
- type: LLMsTxt
  url: llms/puddle-llms.txt
- type: WellKnown
  url: well-known/puddle-well-known.yml
- type: Login
  url: https://usepuddle.com/login
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-contacts:
- FN: Prakul Singh
  email: prakul@usepuddle.com
  x-twitter: prakpuddle
  x-role: security-contact
x-aliases:
- https://trypuddle.com
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 5
  pass: local-v1