# Biorhythm MCP Server by RoxyAPI (remote · roxyapi.com)

Biorhythm cycles, forecasts, critical days and compatibility for AI agents, one API key.

- Trust score: 63/100 (medium)
- Change this week: +5
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `roxyapi.com`: 63/100 (this document), [markdown](https://verifymcp.io/servers/com-roxyapi-biorhythm/mcp-biorhythm.md), [page](https://verifymcp.io/servers/com-roxyapi-biorhythm/mcp-biorhythm)

## Channel facts

- Endpoint: `https://roxyapi.com/mcp/biorhythm`
- Transports: `streamable-http`
- Auth: `required`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 47/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1950 tokens (~325/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 98/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 93% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http com-roxyapi-biorhythm https://roxyapi.com/mcp/biorhythm
```

### Codex

```toml
[mcp_servers.com-roxyapi-biorhythm]
url = "https://roxyapi.com/mcp/biorhythm"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-roxyapi-biorhythm": {
      "type": "remote",
      "url": "https://roxyapi.com/mcp/biorhythm",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-roxyapi-biorhythm --url https://roxyapi.com/mcp/biorhythm --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-roxyapi-biorhythm:
    url: "https://roxyapi.com/mcp/biorhythm"
```

### Other

```json
{
  "mcpServers": {
    "com-roxyapi-biorhythm": {
      "type": "http",
      "url": "https://roxyapi.com/mcp/biorhythm"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 62, +2)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 60, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-28 (score 59, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 58, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 57)

First indexed and scored.

## MCP tools (6)

### `post_biorhythm_reading` (~325 tokens)

Get biorhythm reading - Complete cycle analysis for any date

Calculate a complete biorhythm reading for a given birth date and target date. Returns all 10 cycle values (physical, emotional, intellectual, intuitive, aesthetic, awareness, spiritual, passion, mastery, wisdom), phase detection with 8 distinct states, energy rating (1-10), overall phase assessment, editorial-grade interpretation, actionable advice, and critical day alerts. Perfect for wellness apps, dating platforms, productivity tools, and AI chatbot integrations that need structured biorhythm data.

Input parameters:

- `birthDate` (string, required): Birth date of the person in YYYY-MM-DD format. This is the anchor for all biorhythm cycle calculations.
- `compact` (boolean): Set true to receive the exact same data in a token-optimized shape that is cheaper for you to read: whitespace is stripped and every array of same-shaped objects is encoded columnar as {"__cols":[fie…
- `lang` (string): Response language (ISO 639-1). Supported: en, tr, de, es, hi, pt, fr, ru. Defaults to en. Languages without translations yet return English.
- `targetDate` (string): Date to calculate the reading for in YYYY-MM-DD format. Defaults to today (UTC) if omitted.

### `post_biorhythm_forecast` (~328 tokens)

Get biorhythm forecast - Multi-day cycle predictions with best and worst days

Generate a biorhythm forecast for a date range up to 90 days. Returns daily cycle values for physical, emotional, intellectual, and intuitive cycles, daily energy ratings, critical day identification, and a summary with best day, worst day, average energy, and period-level guidance. Ideal for wellness apps, productivity planners, scheduling tools, and calendar integrations that need forward-looking biorhythm data.

Input parameters:

- `birthDate` (string, required): Birth date of the person in YYYY-MM-DD format.
- `compact` (boolean): Set true to receive the exact same data in a token-optimized shape that is cheaper for you to read: whitespace is stripped and every array of same-shaped objects is encoded columnar as {"__cols":[fie…
- `endDate` (string): End date of the forecast range in YYYY-MM-DD format. Defaults to startDate + 30 days. Maximum range: 90 days.
- `lang` (string): Response language (ISO 639-1). Supported: en, tr, de, es, hi, pt, fr, ru. Defaults to en. Languages without translations yet return English.
- `startDate` (string): Start date of the forecast range in YYYY-MM-DD format. Defaults to today (UTC).

### `post_biorhythm_critical_days` (~343 tokens)

Find critical days - Zero crossing detection for any date range

Find all critical days (zero crossings) within a date range up to 180 days. Returns each critical day with cycle name, period, direction (ascending or descending), severity (single, double, or triple), and advisory text. Highlights rare double critical days where two primary cycles cross zero simultaneously and extremely rare triple critical days where all three primary cycles cross zero on the same date. Ideal for calendar integrations, push notification systems, alert engines, and wellness scheduling tools.

Input parameters:

- `birthDate` (string, required): Birth date of the person in YYYY-MM-DD format.
- `compact` (boolean): Set true to receive the exact same data in a token-optimized shape that is cheaper for you to read: whitespace is stripped and every array of same-shaped objects is encoded columnar as {"__cols":[fie…
- `endDate` (string): End date of the search range in YYYY-MM-DD format. Defaults to startDate + 90 days. Maximum range: 180 days.
- `lang` (string): Response language (ISO 639-1). Supported: en, tr, de, es, hi, pt, fr, ru. Defaults to en. Languages without translations yet return English.
- `startDate` (string): Start date of the search range in YYYY-MM-DD format. Defaults to today (UTC).

### `post_biorhythm_compatibility` (~307 tokens)

Calculate compatibility - Biorhythm alignment between two people

Calculate biorhythm compatibility between two people by overlaying their cycle profiles on a target date. Returns per-cycle alignment scores (0-100) for physical, emotional, and intellectual cycles, an overall compatibility score, relationship rating, strengths, challenges, practical advice, and a daily sync snapshot showing the absolute difference in each primary cycle. Perfect for dating apps, relationship platforms, team-building tools, and couples coaching applications.

Input parameters:

- `compact` (boolean): Set true to receive the exact same data in a token-optimized shape that is cheaper for you to read: whitespace is stripped and every array of same-shaped objects is encoded columnar as {"__cols":[fie…
- `lang` (string): Response language (ISO 639-1). Supported: en, tr, de, es, hi, pt, fr, ru. Defaults to en. Languages without translations yet return English.
- `person1` (object, required)
- `person2` (object, required)
- `targetDate` (string): Date to evaluate compatibility on in YYYY-MM-DD format. Defaults to today (UTC). Compatibility varies by day since biorhythm cycles are continuous.

### `post_biorhythm_phases` (~296 tokens)

Get phase info - Lightweight cycle status for dashboards and widgets

Get current phase information for all 10 biorhythm cycles without the full interpretation payload. Returns value, phase name, phase label, day position within cycle, cycle period, days until next critical crossing, and short-term trend for each cycle. Includes a compact summary string. Designed as a lightweight endpoint for dashboards, widgets, status bars, and quick-check interfaces that need biorhythm phase data without editorial text.

Input parameters:

- `birthDate` (string, required): Birth date of the person in YYYY-MM-DD format.
- `compact` (boolean): Set true to receive the exact same data in a token-optimized shape that is cheaper for you to read: whitespace is stripped and every array of same-shaped objects is encoded columnar as {"__cols":[fie…
- `lang` (string): Response language (ISO 639-1). Supported: en, tr, de, es, hi, pt, fr, ru. Defaults to en. Languages without translations yet return English.
- `targetDate` (string): Date to get phase information for in YYYY-MM-DD format. Defaults to today (UTC).

### `post_biorhythm_daily` (~351 tokens)

Get daily biorhythm - Seeded reading for daily check-in features

Get a daily biorhythm reading with seeded randomness for consistent "biorhythm of the day" features. Same seed and same date always produce the same reading, perfect for daily push notifications, morning briefings, and wellness app check-ins. Returns energy rating, overall phase, a spotlight on one featured cycle, quick-read values for all three primary cycles, a daily message, and actionable advice. The spotlight cycle is deterministically selected by the seed, creating variety across users while maintaining consistency for each individual.

Input parameters:

- `compact` (boolean): Set true to receive the exact same data in a token-optimized shape that is cheaper for you to read: whitespace is stripped and every array of same-shaped objects is encoded columnar as {"__cols":[fie…
- `date` (string): Date for the reading in YYYY-MM-DD format. Defaults to today (UTC). Useful for viewing past daily readings or pre-generating future ones.
- `lang` (string): Response language (ISO 639-1). Supported: en, tr, de, es, hi, pt, fr, ru. Defaults to en. Languages without translations yet return English.
- `seed` (string): Optional seed for reproducible readings. Same seed + same date = same reading every time. Pass any unique identifier (userId, email hash, session token). Omit for anonymous daily readings.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-roxyapi-biorhythm/mcp-biorhythm#diagnostics

## Score history

- 2026-08-03: 63
- 2026-08-02: 63
- 2026-08-01: 62
- 2026-07-31: 62
- 2026-07-30: 60
- 2026-07-29: 59
- 2026-07-28: 59
- 2026-07-27: 58
- 2026-07-26: 57

## Links

- Remote endpoint: https://roxyapi.com/mcp/biorhythm
- Authorisation metadata: https://roxyapi.com/.well-known/oauth-protected-resource/mcp/biorhythm
- Website: https://roxyapi.com/products/biorhythm-api
- Changelog RSS feed: https://verifymcp.io/servers/com-roxyapi-biorhythm/mcp-biorhythm/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-roxyapi-biorhythm/mcp-biorhythm/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-roxyapi-biorhythm/mcp-biorhythm