Western Astrology MCP Server by RoxyAPI

Local space astrology map - Directional planetary compass lines

post_astrology_local_space

Read-only

Generate a local space astrology map that projects the natal planets onto the local horizon as compass directions and great-circle lines radiating from the birthplace. Returns each body azimuth (degrees clockwise from true north), altitude, 16-point compass direction, whether it sits above the horizon, and the latitude and longitude waypoints of its directional line. Ideal for relocation planning, directional astrology, and travel-direction maps.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`date`	Yes	Birth date in YYYY-MM-DD format. Combined with time and timezone it fixes the birth instant whose planetary positions are projected onto the local horizon.
`lang`	No	Response language (BCP 47). Supported: en, tr, de, es, hi, pt, fr, ru, zh-Hans, zh-Hant. Defaults to en. Coverage varies by domain, and a field with no translation in the requested language returns English.	en
`time`	Yes	Birth time in 24-hour HH:MM:SS format. Time is essential: the local horizon rotates a full circle each day, so the azimuth (compass direction) of every body depends on the exact birth time.
`compact`	No	Set true for the same data in a compact shape: arrays of same-shaped objects arrive columnar as {"__cols":[names],"__rows":[[values]]}. Lossless, typically 40 to 52 percent fewer tokens.
`include`	No	Optional comma-separated extra bodies to add beyond the 10 classical planets. Allowed values: north-node, chiron, lilith. north-node is the mean lunar node. Omit to return the 10 classical planets only.
`latitude`	Yes	Birthplace latitude in decimal degrees (-90 to 90). This is the origin point of every local space line and the observer latitude used to turn each body into an azimuth and altitude.
`timezone`	Yes	Decimal hours from UTC (e.g. -5 for EST, 5.5 for IST, 9 for JST) OR IANA name (e.g. "America/New_York"). IANA resolved to the offset in force at the birth date and time.
`longitude`	Yes	Birthplace longitude in decimal degrees (-180 to 180). Sets the local horizon orientation and the starting point from which the directional lines radiate.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`bodies`	Yes
`summary`	Yes
`birthDetails`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 20, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "birthDetails": {
+      "properties": {
+        "date": {
+          "type": "string"
+        },
+        "latitude": {
+          "type": "number"
+        },
+        "longitude": {
+          "type": "number"
+        },
+        "time": {
+          "type": "string"
+        },
+        "timezone": {
+          "type": "number"
+        }
+      },
+      "required": [
+        "date",
+        "time",
+        "latitude",
+        "longitude",
+        "timezone"
+      ],
+      "type": "object"
+    },
+    "bodies": {
+      "items": {
+        "properties": {
+          "aboveHorizon": {
+            "type": "boolean"
+          },
+          "altitude": {
+            "type": "number"
+          },
+          "azimuth": {
+            "type": "number"
+          },
+          "compassDirection": {
+            "type": "string"
+          },
+          "interpretation": {
+            "type": "string"
+          },
+          "line": {
+            "properties": {
+              "points": {
+                "items": {
+                  "properties": {
+                    "latitude": {
+                      "type": "number"
+                    },
+                    "longitude": {
+                      "type": "number"
+                    }
+                  },
+                  "required": [
+                    "latitude",
+                    "longitude"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "points"
+            ],
+            "type": "object"
+          },
+          "planet": {
+            "type": "string"
+          },
+          "planetLocalized": {
+            "type": "string"
+          },
+          "symbol": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "planet",
+          "azimuth",
+          "altitude",
+          "compassDirection",
+          "aboveHorizon",
+          "line",
+          "interpretation"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "summary": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "birthDetails",
+    "bodies",
+    "summary"
+  ],
+  "type": "object"
+}

Changed1 schema field changedSep 16, 2026

changedInput schema / properties / timezone / description

Previous value: -"Decimal hours from UTC (e.g. -5 for EST, 5.5 for IST, 9 for JST) OR IANA name (e.g. \"America/New_York\"). IANA resolved to the DST-correct offset for the birth date."New value: +"Decimal hours from UTC (e.g. -5 for EST, 5.5 for IST, 9 for JST) OR IANA name (e.g. \"America/New_York\"). IANA resolved to the offset in force at the birth date and time."

Changed2 schema fields changedAug 25, 2026

changedInput schema / properties / lang / description

Previous value: -"Response language (ISO 639-1). Supported: en, tr, de, es, hi, pt, fr, ru. Defaults to en. Languages without translations yet return English."New value: +"Response language (BCP 47). Supported: en, tr, de, es, hi, pt, fr, ru, zh-Hans, zh-Hant. Defaults to en. Coverage varies by domain, and a field with no translation in the requested language returns English."

changedInput schema / properties / lang / enum

Previous value: -[
-  "en",
-  "tr",
-  "de",
-  "es",
-  "hi",
-  "pt",
-  "fr",
-  "ru"
-]New value: +[
+  "en",
+  "tr",
+  "de",
+  "es",
+  "hi",
+  "pt",
+  "fr",
+  "ru",
+  "zh-Hans",
+  "zh-Hant"
+]

Changed2 schema fields changedAug 17, 2026

addedInput schema / examples

Added value: +[
+  {
+    "date": "1990-07-15",
+    "latitude": 40.7128,
+    "longitude": -74.006,
+    "time": "14:30:00",
+    "timezone": -5
+  }
+]

changedInput schema / properties / compact / description

Previous value: -"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\":[field names],\"__rows\":[[values]]}, so each field name is sent once instead of once per row. Fully lossless (no field or value is dropped or changed) and typically 40 to 52 percent fewer tokens on large results. Prefer true whenever token or inference cost matters. Default false returns standard indented JSON."New value: +"Set true for the same data in a compact shape: arrays of same-shaped objects arrive columnar as {\"__cols\":[names],\"__rows\":[[values]]}. Lossless, typically 40 to 52 percent fewer tokens."

Changed1 schema field changedJul 22, 2026

changedInput schema / properties / compact / description

Previous value: -"Return the same data in a token-optimized compact shape (minified, with same-shaped arrays encoded columnar) to reduce LLM token cost. Lossless: no fields are dropped. Default false."New value: +"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\":[field names],\"__rows\":[[values]]}, so each field name is sent once instead of once per row. Fully lossless (no field or value is dropped or changed) and typically 40 to 52 percent fewer tokens on large results. Prefer true whenever token or inference cost matters. Default false returns standard indented JSON."

Changed1 schema field changedJul 22, 2026

addedInput schema / properties / compact

Added value: +{
+  "default": false,
+  "description": "Return the same data in a token-optimized compact shape (minified, with same-shaped arrays encoded columnar) to reduce LLM token cost. Lossless: no fields are dropped. Default false.",
+  "type": "boolean"
+}

Changed1 schema field changedJul 12, 2026

changedInput schema / properties / timezone / anyOf

Previous value: -[
-  {
-    "maximum": 14,
-    "minimum": -14,
-    "type": "number"
-  },
-  {
-    "pattern": "^[A-Za-z_]+(?:\\/[A-Za-z0-9_+-]+){0,2}$",
-    "type": "string"
-  }
-]New value: +[
+  {
+    "maximum": 14,
+    "minimum": -14,
+    "type": "number"
+  },
+  {
+    "type": "string"
+  }
+]

First observedJul 8, 2026

TDQS

A4.5/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description adds substantial behavioral detail: it projects natal planets onto the local horizon, computes azimuth in degrees clockwise from true north, altitude, 16-point compass direction, horizon status, and directional-line waypoints. This goes well beyond the safety annotations and gives the agent a precise mental model of the calculation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences, each doing distinct work: define the computation, list the returned data, and state the use cases. The core scope is front-loaded and there is no filler or repetition of schema details.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a read-only compute tool with a full input schema and an output schema present, the description covers what the tool does, what it returns, and when it is useful. Nothing essential for selecting or invoking it correctly is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, with each of the 8 parameters already documented clearly, including formats, units, defaults, and allowed values. The tool description adds no new parameter-level meaning, so the baseline of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a specific action and resource: 'Generate a local space astrology map' that 'projects the natal planets onto the local horizon as compass directions and great-circle lines.' It then enumerates the exact outputs, making the tool's scope unmistakable. The 'local horizon' and 'compass directions' framing clearly separates it from global/relocation chart siblings like astrocartography without requiring the agent to open schemas.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives concrete use cases: 'relocation planning, directional astrology, and travel-direction maps.' This is clear positive context for when to invoke it. However, it never names sibling tools or states when not to use it, so it stops short of full when-not/alternatives guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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