"Methods to reduce API call frequency" matching MCP tools:

• foxy_update_subscription

  foxyio

  UPDATES a subscription — reschedule its next run (next_transaction_date), change its frequency, or activate/pause it (is_active). This MODIFIES live store data and affects future billing. Foxy hAPI: PATCH /subscriptions/{id}. Provide only the fields you want to change.

  Connector

• get_schumann_resonance

  Mellow Mountain Radio

  Returns the current Schumann resonance reading — Earth's electromagnetic pulse measured at the Tomsk observatory. Includes frequency, energy score, activity level, and spectrogram URL.

  Connector

• get_chakra_guide

  Mellow Mountain Radio

  Full guide to the seven chakras — Sanskrit name, Solfeggio frequency, musical note, color, element, bija mantra, petal count, governing theme, balanced and blocked states, affirmation, crystals, essential oils, yoga pose, and the Sedona vortex tied to each center.

  Connector

• analyze_vibration

  EngineerCore — Mechanical Engineering Calculator

  Analyse a mass-spring-damper system. Returns natural frequency (rad/s and Hz), damping ratio, damped natural frequency, system classification, logarithmic decrement, and engineering flags. All inputs must be in strict SI units.

  Connector

• compress_pdf

  KDAN PDF

  Compress a PDF to reduce its file size and return a new versioned file. MANDATORY: Before calling this tool, call 'check_upload_status' with the session_id to confirm the file exists and retrieve the latest job_id. Skipping this check and calling compress_pdf directly is FORBIDDEN. Each call creates a NEW job_id (with parent_job_id linking to the source). The original PDF version is preserved unchanged — previous versions remain accessible. After compression completes, call 'view_pdf' with the new job_id to display the result.

  Connector

• get_chakra_guide

  KAZM Mellow Mountain Radio

  Full guide to the seven chakras — Sanskrit name, Solfeggio frequency, musical note, color, element, bija mantra, petal count, governing theme, balanced and blocked states, affirmation, crystals, essential oils, yoga pose, and the Sedona vortex tied to each center.

  Connector

• list_on_call

  betterstack

  List on-call calendars/schedules and the users currently on call for escalation. Useful to see who gets paged. Uptime API: GET /api/v2/on-calls.

  Connector

• apr_to_apy

  Xearno Tools

  Nominal vs effective rates — what a quoted APR really costs at your compounding frequency. Converts between nominal APR and effective APY at any compounding frequency. This is the difference between what a rate is called and what it actually does to your balance.

  Connector

• get_schumann_resonance

  KAZM Mellow Mountain Radio

  Returns the current Schumann resonance reading — Earth's electromagnetic pulse measured at the Tomsk observatory. Includes frequency, energy score, activity level, and spectrogram URL.

  Connector

• list_monitors

  betterstack

  List uptime monitors with their status (up/down/paused/pending/maintenance/validating), check frequency, and alert settings. Good first call to discover what is being monitored. Uptime API: GET /api/v2/monitors.

  Connector

• tdee

  Fitness Tools

  Estimate BMR and TDEE via Mifflin-St Jeor, Harris-Benedict, Katch-McArdle, and Cunningham. Provide body_fat or lean_mass to unlock the LBM-based methods.

  Connector

• watermark_embed

  studiomcphub

  Embed invisible DCT-domain watermark into an image. Encodes a text payload into luminance channel frequency coefficients. Survives light compression. FREE. (FREE)

  Connector

• body-fat

  Fitness Tools

  Estimate body-fat % via US Navy circumference, Jackson-Pollock 3-site skinfold, and Deurenberg (BMI-based) methods.

  Connector

• fred_search_series

  World Bank & FRED Macro

  Free-text search across FRED series. Returns id, title, units, frequency.

  Connector

• suggestEndpointPrice

  StatePulse API

  FREE endpoint. If a paid endpoint's pricing is too high, suggest a target price based on alternative sources, budget limitations, or query frequency. Feedback is used to optimize pricing decisions.

  Connector

• analyze_seo_keywords

  Marketing Mcp

  Extract top SEO keywords from marketing copy using term frequency. Returns: {keywords: [{word, score}], total_words}

  Connector

• rpc_lookup_method

  Avalanche AVAX MCP

  Look up Avalanche RPC methods and API guides across C-Chain, P-Chain, X-Chain, Subnet-EVM, and node RPC docs.

  Connector

• linkedin_raw_request

  DialogBrain

  Send an arbitrary LinkedIn API request via Unipile's magic route. Only GET and POST methods are allowed. WARNING: This bypasses structured rate limiting and can perform destructive actions. Use this only when no other LinkedIn tool covers the needed functionality.

  Connector

• autopilot_status

  SqueezeOS — Institutional AI Market Intelligence

  Read-only status of the Sovereign Autopilot (CEO Trader). Returns: active (bool), live_mode (bool), symbols watchlist, min_confidence threshold, Kelly fraction, max concurrent positions, cooldown remaining, active open positions with symbol/side/entry/SL/TP, circuit breaker state, daily P&L, daily trade count. Free — no auth required. Safe for any agent to call at any frequency.

  Connector

• assess_weather_risk

  ParaSure

  [$0.10 USDC/call · Solana USDC · x402] Entry point for every agent flow. Given a business location and type, returns a weather risk score (0-1), the top perils ranked by severity, historical frequency data, and an overall risk level (low/moderate/high/severe). Powered by 5 years of Open-Meteo historical data — returns real data, not sandbox. Always call this first before requesting a quote.

  Connector