Summer 2

SummerOS (formerly reached at gosummer.com, which now 308-redirects to summeros.com) is an AI-driven asset-intelligence platform for short-term rental operators, owners, investors, and property managers. It provides professional-grade revenue forecasting, competitive market intelligence, and portfolio-wide performance analytics, plus an AI assistant (Sunny AI), so short-term rental teams can make data-driven pricing and investment decisions instead of relying on spreadsheets. It connects to property-management systems (Guesty, Hospitable, Streamline, Track) rather than exposing a public developer API. Surfaced as a QED Investors portfolio lead and enriched from its live public surface.

Summer 2 is profiled on the APIs.io network. Tagged areas include Company, Short-Term Rental, Vacation Rentals, Property Management, and Analytics.

Summer 2’s developer surface includes documentation, support, pricing, signup flow, and 5 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

22.6/100 emerging ▬ flat Agent 0/100 human only Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

0 APIs

Company Short-Term Rental Vacation Rentals Property Management Analytics Revenue Management PropTech Artificial Intelligence Market Intelligence Asset IntelligenceRevenue Forecasting

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 22.6/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.4 / 17

Access Clarity 13.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 1.9 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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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<a href="https://apis.io/providers/summer-2/"><img src="https://apis.io/badge/summer-2/card.svg" alt="Summer 2 on APIs.io — Kin Score by API Evangelist"></a>

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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
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 14.3 — up to +17.1 composite points
Operational Transparency scores 0.0 — up to +13.0 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/summer-2/apis.yml: open an issue on github.com/api-evangelist/summer-2 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 →

Summer 2 API pricing

Prices published by Summer 2, read 2026-10-07 from www.summeros.com/pricing.

Plan	Price
Lite	$50 Includes: 20 Sunny AI chat queries per day; Unlimited market search access; Unlimited projections; 1 user seat
Lite+	$19 Includes: Everything in Lite, plus PMS integration, full property analytics, portfolio insights, up to 2 user
Forecast Pro	Custom pricing Includes: Full access to Sunny AI chat; unlimited market search; unlimited projections; unlimited term sheets;
SummerOS Pro	Custom pricing Includes: Everything in Forecast Pro, plus first-party data access, PMS integration, full analytics, report cr

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Summer 2 Plans Pricing

4 plans

PLANS

Security Posture 1

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

Summer 2 Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1
aid: summer-2
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: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/summer-2.png
name: Summer 2
description: SummerOS (formerly reached at gosummer.com, which now 308-redirects to summeros.com) is an AI-driven asset-intelligence
  platform for short-term rental operators, owners, investors, and property managers. It provides professional-grade revenue
  forecasting, competitive market intelligence, and portfolio-wide performance analytics, plus an AI assistant (Sunny AI),
  so short-term rental teams can make data-driven pricing and investment decisions instead of relying on spreadsheets. It
  connects to property-management systems (Guesty, Hospitable, Streamline, Track) rather than exposing a public developer
  API. Surfaced as a QED Investors portfolio lead and enriched from its live public surface.
url: https://raw.githubusercontent.com/api-evangelist/summer-2/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- qed-investors
x-tier: stub
x-tier-reason: portfolio-lead
x-note: gosummer.com 308-redirects to summeros.com (site-deprecation). No public API/developer surface found as of 2026-07-21;
  profile reflects the live SummerOS product surface.
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Short-Term Rental
- Vacation Rentals
- Property Management
- Analytics
- Revenue Management
- PropTech
- Artificial Intelligence
- Market Intelligence
- Asset Intelligence
- Revenue Forecasting
tags_raw:
- Company
- Short-Term Rental
- Vacation Rental
- Property Management
- Analytics
- Revenue Management
- Proptech
- Artificial Intelligence
- Market Intelligence
- Short‑Term Rentals
- Asset Intelligence
- Revenue Forecasting
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/summer-2-plans-pricing.yml
- type: DomainSecurity
  url: security/summer-2-domain-security.yml
- type: Website
  url: https://www.summeros.com
- type: Documentation
  url: https://helpcenter.summeros.com/
- type: Support
  url: https://helpcenter.summeros.com/
- type: Pricing
  url: https://www.summeros.com/pricing
- type: SignUp
  url: https://login.summeros.com/sign-up
- type: TermsOfService
  url: https://www.summeros.com/legal/terms-of-use
- type: PrivacyPolicy
  url: https://www.summeros.com/legal/privacy-policy

Summer 2 API — frequently asked questions

How much does the Summer 2 API cost?

Summer 2 publishes its prices; its Lite plan is $50 as of 2026-10-07. APIs.io lists 4 pricing plans for Summer 2, with each plan's price, limits and inclusions under Pricing on this page.

Is the Summer 2 API ready for AI agents?

Summer 2 has a Kin Score of 22.6 out of 100 (emerging) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-06.

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