Outdoorithm for Developers
Campground data, enriched.
Search, community safety, satisfaction grades, review sentiment, live availability, and gear for 11,800+ US campgrounds — over a REST API, an MCP server, and webhooks.
Months to scrape. Years to enrich.
Reliably pulling availability from 44 reservation systems — through the WAFs, CAPTCHAs, and rate limits — is months of dedicated engineering on its own, and it only gets you raw listings. On top of that we've built years of community-safety classification, satisfaction grading, and sentiment analysis no reservation system exposes. Build on both without building either.
Community safety (Greenbook)
Per-campground welcomeness scores and discrimination flags, classified from real reviews. Data no reservation system exposes.
Report Card grades
A–F satisfaction grades per campground and per driver (scenery, facilities, noise, value…), graded against the national distribution.
Review sentiment
Aggregated sentiment, trend direction, and our own generated summaries — never verbatim third-party review text.
Gear intelligence
A curated gear catalog with per-campground recommendations matched to terrain, activities, and amenity gaps.
Terrain & scenery
Geographic terrain classification (mountain, forest, coastal, desert…) derived from coordinates and review signal.
Availability + alerts
Live and cached campsite availability across 44 reservation systems, plus webhook notifications the moment a site opens.
Two ways to build
REST API
A versioned JSON API for apps, websites, and internal tools. API-key auth, cursor pagination, RFC 9457 errors, idempotent writes, and an OpenAPI 3.1 spec.
MCP server
A hosted Model Context Protocol server so AI agents can query campgrounds, availability, safety, weather, and gear as tools — no scraping, no glue code.
claude mcp add --transport http outdoorithm https://mcp.outdoorithm.com/mcpWhat's in the API
- CampgroundsSearch with 20+ filters; ~90-field enriched profiles.
- SafetyGreenbook flag status, vibe score, tone & staff breakdown, alerts.
- GradeOverall + per-driver report-card grades.
- ReviewsSentiment, our summaries, per-dimension signal counts.
- AvailabilityLive/cached availability for a date range.
- GearCatalog search + per-campground recommendations.
- AlertsCreate & manage availability alerts (idempotent writes).
- WebhooksSigned availability.found events to your endpoint.
Your first call
Create a key, then make a request. Every response is versioned JSON under /api/v1.
curl https://outdoorithm.com/api/v1/campgrounds?state=CA&limit=3 \
-H "Authorization: Bearer oai_your_key_here"Access & pricing
Personal use comes with an Outdoorithm subscription. Building a product on our data is a commercial licence.
Personal
Automating your own camping
Included with a subscription
From $12.99/month. The full API scoped to your own account, plus a monthly usage allowance sized well above ordinary personal use.
See membershipAI assistants
Claude, ChatGPT, and agent frameworks
Free
Our MCP connector exposes campground search, safety, weather and gear with no account required. Fair-use limits apply.
Connector endpointCommercial licences
Annual agreements. Each step up adds data that costs materially more to serve — live availability is scraped from operator systems in real time, so it is priced separately from our own catalogue.
Catalog
$1,000/mo
Campground and gear data for the licensed provider set. No live availability, no alerts.
100,000 monthly usage credits
Availability
$2,500/mo
Everything in Catalog plus live campsite availability across licensed providers.
2,000,000 monthly usage credits
Platform
$5,000/mo
Everything in Availability plus signed webhooks and a small allocation of multi-tenant alerts for the partner's own end users.
10,000,000 monthly usage credits
Hosted alerts
We run the monitoring and send you a signed webhook when a site opens. You keep your own users, delivery, and history — we never see your users' contact details. Priced per active watch per month, banded by what the provider costs us to poll.
| Band | Providers | Cadence | Per watch / mo |
|---|---|---|---|
| Standard | Providers with a usable public API — Recreation.gov, ReserveCalifornia, and most state-park systems. | every 2 minutes | $2 |
| Proxied | Providers reachable only through a residential proxy or a headless browser — ReserveAmerica, GoingToCamp, Michigan, Colorado State Parks. | every 30 minutes to 4 hours | $8 |
| Intensive | Providers behind a WAF requiring browser automation and CAPTCHA solving — San Mateo, Sonoma, Idaho and Alabama State Parks. | every 8 hours | $15 |
Volume discounts are graduated, so a larger book is never cheaper in total than a smaller one. Capacity is finite and we will tell you where it ends — volumes in the tens of thousands of watches are a capacity conversation before they are a pricing one.
Usage is measured in credits, not raw calls. A campground lookup is one credit. A live availability check against an operator that requires a proxy or a browser session costs more, because it costs us more. Every response tells you what it spent, so you can reconcile it yourself.
Going over does not break your product. If you exceed your monthly credits we keep serving your users and bill the difference at your contracted rate — responses tell you the moment that starts, so it is never a surprise on an invoice. Requests only stop at an agreed overage ceiling.
Licences are scoped to providers. You license the reservation systems you need — all of them, or just the state-park systems, or a single operator.
Attribution required. Reasonable attribution to Outdoorithm must appear wherever our data is shown.
How to start. Email us with what you are building, the providers or states you need, and rough monthly volume. We will scope a licence with you and can usually get a pilot running quickly. Full endpoint reference is at /docs/api.
Volumes beyond these tiers, or availability alerts on behalf of your own users, are quoted individually — talk to us.
Start building with Outdoorithm data
Grab a key to evaluate, or talk to us about a commercial license.