Astroway MCP vs OpenFate Bazi MCP

A side-by-side look at the Astroway MCP and OpenFate Bazi MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Astroway MCP logoAstroway MCPSpirituality & Esoterica · Local subprocess (stdio)Comprehensive astrology MCP exposing every endpoint of the AstroWay Calculation API — natal charts, synastry, transits, Vedic dashas (Vimshottari, Yogini, Ashtottari, Kalachakra), 16 Vargas, Tarot (Rider-Waite-Smith / Marseille / Lenormand), Numerology (5 systems), Human Design, AI horoscopes. Sub-arcsecond Swiss Ephemeris precision, 10 000 free credits/month. Install: npx @astroway/mcp.57GoodAuth: api key requiredOpenFate Bazi MCP logoOpenFate Bazi MCPSpirituality & Esoterica · Local subprocess (stdio)OpenFate Bazi MCP with True Solar Time, Four Pillars, Da Yun, and branch interactions.65GreatAuth: not declared

Verdict: choose Astroway MCP for spirituality & esoterica work as a local process; choose OpenFate Bazi MCP for spirituality & esoterica as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Astroway MCP logoChoose Astroway MCP when

  • You need dedicated capabilities in the Spirituality & Esoterica domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: ASTROWAY_API_KEY, ASTROWAY_TOOL_GROUPS, ASTROWAY_READONLY, ASTROWAY_DISCOVERY_MODE.
Explore Astroway MCP

OpenFate Bazi MCP logoChoose OpenFate Bazi MCP when

  • You need dedicated capabilities in the Spirituality & Esoterica domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like calculate_bazi_chart, detect_bazi_interactions, calculate_true_solar_time.
Explore OpenFate Bazi MCP

Feature & specification comparison

Rows where the two servers differ are marked.

SpecAstroway MCP logoAstroway MCPOpenFate Bazi MCP logoOpenFate Bazi MCP
CategorySpirituality & EsotericaSpirituality & Esoterica
Quality signal57/100 · Good65/100 · Great
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthAPI key requiredNot declared
PricingFreemiumNot declared
Required env varsASTROWAY_API_KEYASTROWAY_TOOL_GROUPSASTROWAY_READONLYASTROWAY_DISCOVERY_MODENone listed
Verified ownerCommunity listingCommunity listing
GitHub stars4160
Directory activity 3 views 0 installs 0 upvotes 2 views 0 installs 0 upvotes
ToolsNot listed6

Tools & capabilities

Astroway MCP tools

No tool names declared yet. Check the project README from the listing page.

OpenFate Bazi MCP tools 6

  • calculate_bazi_chartCalculate a deterministic OpenFate Bazi/Four Pillars chart with True Solar Time correction, Day Master, DAYUN_SECOND_V2 onset receipts, Da Yun cycles, and branch interactions. Pass an exact birth time plus timezone or timezoneId for a calculated V2 onset; otherwise inspect the explicit unavailable/fallback receipt.
  • detect_bazi_interactionsDetect raw Earthly Branch relationship occurrences for a natal chart and optional annual and Da Yun branches. Preserves every matching pillar position, including repeated branches. Covers clashes, six-combinations, the eight central-branch half-trines (COMBINATION_HALF), full trines, directionals, punishments, destructions, and harms. Results establish relationship presence, not weights, cancellation, or automatic transformation; targetElement is an affinity, not transformed energy.
  • calculate_true_solar_timeCalculate OpenFate True Solar Time from civil birth time, longitude, timezone, and optional DST offset. Use this when explaining why the hour pillar may differ from ordinary clock-time tools.
  • reverse_bazi_to_solar_timesFind possible Gregorian datetimes that produce a given four-pillar Bazi string. This is useful when a user only has a Bazi chart or screenshot. This lookup uses clock-time pillars without location-based true solar correction.
  • get_openfate_bazi_policyReturn OpenFate calculation policy and LLM guidance for Bazi chart calls.
  • get_openfate_bazi_resourcesReturn canonical OpenFate URLs for charting, readings, compatibility, wealth, true solar time, and AI crawler metadata.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Astroway MCP

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "astroway-astroway-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@astroway/mcp"
      ],
      "env": {
        "ASTROWAY_API_KEY": "YOUR_ASTROWAY_API_KEY_HERE",
        "ASTROWAY_TOOL_GROUPS": "YOUR_ASTROWAY_TOOL_GROUPS_HERE",
        "ASTROWAY_READONLY": "YOUR_ASTROWAY_READONLY_HERE",
        "ASTROWAY_DISCOVERY_MODE": "YOUR_ASTROWAY_DISCOVERY_MODE_HERE"
      }
    }
  }
}

OpenFate Bazi MCP

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "openfate-bazi-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@openfate/bazi-mcp"
      ]
    }
  }
}

Frequently asked questions

Astroway MCP is categorized under Spirituality & Esoterica and uses a local stdio subprocess. OpenFate Bazi MCP belongs to Spirituality & Esoterica and uses a local stdio subprocess. Pick Astroway MCP for spirituality & esoterica work and OpenFate Bazi MCP for spirituality & esoterica.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Astroway MCP is listed as freemium — a free tier with paid plans. Auth: api key required. OpenFate Bazi MCP has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add astroway-astroway-mcp and openfate-bazi-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Astroway MCP has a quality signal of 57/100 (Good) with 3 views, 0 installs and 4 GitHub stars. OpenFate Bazi MCP has 65/100 (Great) with 2 views, 0 installs and 160 GitHub stars.