Rahul D Sarker: Marketing & RevOps Tools

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "rahul-d-sarker-marketing-revops-tools": {
      "type": "http",
      "url": "https://rahuldsarker.co/api/mcp"
    }
  }
}

123 tools

• search_content

  Search rahuldsarker.co for articles, long-form guides and client case studies on fractional CMO work, revenue operations, attribution, server-side tracking, performance marketing, CRM and AI marketing. Returns titles, summaries and links to cite. Use read_content to get the full…

• read_content

  Get the full text of one rahuldsarker.co article or case study, by its slug or URL (from search_content), so you can quote it accurately. Always cite the returned link.

• check_availability

  List open times for a free call with Rahul D Sarker (fractional CMO and RevOps consultant), live from his calendar. Each time comes with a link that opens the booking form with that time selected; the person confirms and books on the site. Use when someone wants to talk to…

• roas_calculator

  Calculate ROAS, ACOS, break-even ROAS, and profit from ad revenue, ad spend, and gross margin. See the full version at https://rahuldsarker.co/calculators/roas

• ltv_cac_calculator

  Calculate customer LTV, CAC, the LTV:CAC ratio, and CAC payback period. See the full version at https://rahuldsarker.co/calculators/cac-ltv

• ad_spend_waste_calculator

  Estimate how much monthly ad budget leaks to fraud and tracking/attribution waste. See the full version at https://rahuldsarker.co/calculators/ad-spend-waste-calculator

• crm_roi_calculator

  Weigh a CRM subscription and implementation cost against the win-rate lift it buys. See the full version at https://rahuldsarker.co/calculators/crm-roi-calculator

• mql_calculator

  Turn traffic and conversion rates into MQL volume, cost per lead, and cost per MQL. See the full version at https://rahuldsarker.co/calculators/mql-calculator

• arr_multiple_calculator

  Apply conservative, market, premium, and custom ARR multiples to see the valuation range they imply. See the full version at https://rahuldsarker.co/calculators/arr-multiple-calculator

• mrr_to_arr_calculator

  Annualize MRR into ARR, with an optional 12-month projection from expected net-new monthly revenue. See the full version at https://rahuldsarker.co/calculators/mrr-to-arr-calculator

• saas_magic_number_calculator

  Measure how efficiently sales and marketing spend turns into new ARR. See the full version at https://rahuldsarker.co/calculators/saas-magic-number-calculator

• cpl_cpa_calculator

  Calculate cost per lead, expected customers, and cost per acquisition from spend, leads, and a lead-to-customer conversion rate. See the full version at https://rahuldsarker.co/calculators/cpl-cpa

• roas_to_mer_converter

  Compare a platform-reported ROAS against your true blended Marketing Efficiency Ratio (MER) to see how much pixels over-claim. See the full version at https://rahuldsarker.co/calculators/roas-to-mer-converter

• ppc_click_volume_predictor

  Predict monthly clicks, conversions, and effective CPA from budget, CPC, and conversion rate, and check whether volume clears the ~50 weekly conversions platforms need to exit learning. See the full version at https://rahuldsarker.co/calculators/ppc-click-volume-predictor

• ad_creative_fatigue_forecaster

  Forecast how many days until an ad audience hits its fatigue frequency ceiling, and the date to have fresh creative ready. See the full version at https://rahuldsarker.co/calculators/ad-creative-fatigue-forecaster

• cpa_to_cac_scalability_matrix

  Project how CPA/CAC inflates as you double and triple ad spend, given a per-doubling decay rate. See the full version at https://rahuldsarker.co/calculators/cpa-to-cac-scalability-matrix

• retargeting_pool_size_estimator

  Estimate the addressable retargeting pool from monthly visitors, window, and match rate, plus the budget needed to hit a target weekly frequency. See the full version at https://rahuldsarker.co/calculators/retargeting-pool-size-estimator

• performance_marketing_margin_protector

  Calculate the break-even and maximum CPA that protect a target profit margin, and check current CPA against that ceiling. See the full version at https://rahuldsarker.co/calculators/performance-marketing-margin-protector

• impression_share_opportunity_matrix

  Estimate missed conversions and revenue from operating below 100% impression share on a search campaign. See the full version at https://rahuldsarker.co/calculators/impression-share-opportunity-matrix

• cross_channel_ad_spend_allocator

  Suggest a starting Google/Meta/LinkedIn budget split based on total budget and average contract value. See the full version at https://rahuldsarker.co/calculators/cross-channel-ad-spend-allocator

• linkedin_ad_cost_threshold_calculator

  Calculate implied CAC from LinkedIn CPC, landing conversion, and close rate, and check it against the maximum CAC a contract can fund. See the full version at https://rahuldsarker.co/calculators/linkedin-ad-cost-threshold-calculator

• seasonal_ad_cpm_predictor

  Project CPM and reach impact for a given season (back-to-school, Black Friday, Q4, January) from a baseline CPM. See the full version at https://rahuldsarker.co/calculators/seasonal-ad-cpm-predictor

• micro_budget_ad_feasibility_checker

  Check whether a small daily ad budget can generate the ~50 weekly conversions platforms typically need to exit the learning phase. See the full version at https://rahuldsarker.co/calculators/micro-budget-ad-feasibility-checker

• google_search_impression_share_value_estimator

  Estimate missed clicks, conversions, and revenue from operating below 100% search impression share. See the full version at https://rahuldsarker.co/calculators/impression-share-opportunity-matrix

• lookalike_audience_pool_calculator

  Estimate the addressable pool from a lookalike percentage and market population, and grade seed audience quality. See the full version at https://rahuldsarker.co/calculators/lookalike-audience-pool-calculator

• ad_frequency_risk_checker

  Calculate average ad frequency from impressions and reach, and flag whether it is healthy, caution, or fatigue territory. See the full version at https://rahuldsarker.co/calculators/ad-frequency-risk-checker

• landing_page_vs_ad_match_quality_auditor

  Score message-match continuity between an ad and its landing page across five weighted criteria (headline, keyword, offer, CTA, visuals). See the full version at https://rahuldsarker.co/calculators/landing-page-vs-ad-match-quality-auditor

• utm_generator_and_validation_helper

  Generate a cleaned, encoded UTM-tagged URL from source, medium, campaign, term, and content, and flag common tagging errors. See the full version at https://rahuldsarker.co/calculators/utm-generator-and-validation-helper

• paid_search_intent_tier_grader

  Grade a list of search keywords into transactional, commercial, or informational intent tiers, and flag the wasted-intent share. See the full version at https://rahuldsarker.co/calculators/paid-search-intent-tier-grader

• creative_testing_duration_forecaster

  Forecast how many days an ad creative test needs to reach a sound sample size, from daily spend, expected CPA, variant count, and conversions needed per variant. See the full version at https://rahuldsarker.co/calculators/creative-testing-duration-forecaster

• post_ios14_blended_attribution_modeler

  Compare summed platform-claimed revenue against actual backend revenue to quantify over-reporting and the true blended ROAS. See the full version at https://rahuldsarker.co/calculators/post-ios14-blended-attribution-modeler

• in_house_vs_fractional_cmo

  Compare the loaded annual cost of a full-time CMO hire against a fractional CMO retainer, including the ramp-up cost before a full-time hire makes impact. See the full version at https://rahuldsarker.co/calculators/in-house-vs-fractional-cmo

• growth_runway_extension_simulator

  See how much cash runway a cut to gross burn buys you, given current cash, burn, and revenue. See the full version at https://rahuldsarker.co/calculators/growth-runway-extension-simulator

• total_addressable_market_estimator

  Build a bottom-up TAM, SAM, and SOM from company counts, reachable share, ACV, and obtainable market share. See the full version at https://rahuldsarker.co/calculators/total-addressable-market-estimator

• brand_vs_performance_budget_allocator

  Split a marketing budget between brand and performance spend based on company stage, using the Binet & Field long/short research as a directional guide. See the full version at https://rahuldsarker.co/calculators/brand-vs-performance-budget-allocator

• product_market_fit_scoring_grader

  Score product-market fit signals (the "very disappointed" test, retention, organic pull, NPS) into a weighted 0-100 PMF score and scale-readiness verdict. See the full version at https://rahuldsarker.co/calculators/product-market-fit-scoring-grader

• customer_expansion_revenue_matrix

  Compound net monthly expansion revenue (upsell + cross-sell minus contraction) forward 1, 2, and 3 years from current ARR, with no new logos. See the full version at https://rahuldsarker.co/calculators/customer-expansion-revenue-matrix

• growth_strategy_prioritization_tool

  Rank growth ideas by ICE score (Impact, Confidence, Ease averaged, each scored 1-10) to decide what to run next. See the full version at https://rahuldsarker.co/calculators/growth-strategy-prioritization-tool

• pricing_elasticity_sandbox

  Model how a price change affects volume, revenue, and gross profit given a price elasticity of demand. See the full version at https://rahuldsarker.co/calculators/pricing-elasticity-sandbox

• burn_rate_optimization_forecaster

  Simulate month by month, at a given revenue growth rate and gross margin, how many months until gross profit covers fixed burn, and the cash needed to bridge the gap. See the full version at https://rahuldsarker.co/calculators/burn-rate-optimization-forecaster

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