RoxyAPI Biorhythm API

The most complete biorhythm API: 10 cycle types across 3 primary (physical, emotional, intellectual), 4 secondary (intuitive, aesthetic, awareness, spiritual), and 3 composite (passion, mastery, wisdom). Critical-day detection with severity classification, 90-day forecasts with best and worst days, two-person compatibility scoring, phase tracking for dashboards, and seeded daily readings for push notifications. 8 languages, deterministic results, and editorial-grade interpretations. One key covers every RoxyAPI domain, with Remote MCP and typed SDKs. Ship a biorhythm feature in hours, not weeks.

Operations 6

POST /biorhythm/reading Get biorhythm reading - Complete cycle analysis for any date #
POST /biorhythm/forecast Get biorhythm forecast - Multi-day cycle predictions with best and worst days #
POST /biorhythm/critical-days Find critical days - Zero crossing detection for any date range #
POST /biorhythm/compatibility Calculate compatibility - Biorhythm alignment between two people #
POST /biorhythm/phases Get phase info - Lightweight cycle status for dashboards and widgets #
POST /biorhythm/daily Get daily biorhythm - Seeded reading for daily check-in features #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/roxyapi-biorhythm-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

roxyapi-biorhythm-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Roxy Biorhythm API
  version: 2.0.0
  description: '# RoxyAPI: AI-Native Insight Infrastructure


    > **Base URL:** `https://roxyapi.com/api/v2`

    > All endpoint paths below are relative to this base URL.'
  contact:
    name: RoxyAPI Support
    url: https://roxyapi.com/contact
  license:
    name: Proprietary
    url: https://roxyapi.com/policy/terms
servers:
- url: /api/v2
  description: Production API v2
security:
- apiKey: []
tags:


# --- truncated at 32 KB (75 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/roxyapi/refs/heads/main/openapi/roxyapi-biorhythm-api-openapi.yml