--- title: sketchstream: Streaming Frequency & Distinct-Count Estimation | SpinForge url: https://spin-forge.com/forge15/sketchstream description: Streaming frequency and distinct-count estimation designed for large streams with a small memory footprint. --- FORGE15 / 04 / SEARCH & DATA [The full offering](https://spin-forge.com/platform) # sketchstream. Streaming frequency and distinct-count estimation designed for large streams with a small memory footprint. [Discuss sketchstream](https://spin-forge.com/contact?product=forge15%2Fsketchstream) Customer outcome [Operate compute and data workflows](https://spin-forge.com/platform/compute-data-operations) Available now CLI MCP Headless Choose your access mode THE PRODUCT, IN PRACTICE ## Answer the count questions. Without retaining the whole stream. When an application needs to ask how often values occur or how many distinct values it has seen, retaining a full history may be unnecessary or too costly. sketchstream maintains compact statistical summaries for supported streams and exposes the error conditions that accompany those estimates. It is a counting component, not a substitute for every event-storage or analytical function. BUILT FOR Streaming analytics, telemetry and data-engineering teams with frequency or cardinality workloads. CHALLENGES PRODUCT RESPONSE ## The problem you face. What sketchstream changes. 01 ### The stream is much larger than the memory budget Keeping all elements solely to answer counting questions can be an inefficient fit for the task. sketchstream uses a compact summary of the supported stream to answer frequency and distinct-count questions without storing the full event history. 02 ### An estimate needs an error contract A number presented without its uncertainty can be mistaken for an exact count. The product’s estimates are evaluated with the error assumptions and checks applicable to the selected counting operation. 03 ### A fast counter can still be wrong in use The team needs to compare estimated counts with known values on a representative qualification workload. The supplied checking path allows the relevant estimates and bounds to be assessed against exact counts where those are retained for evaluation. WHAT YOU GET ## A defined capability. A useful output. The product scope below describes the capability and outputs to confirm for your release. Custom integration, operated delivery and additional engineering are separately agreed. 01 ### Frequency estimation Answers to supported “how often” queries over the stream. 02 ### Distinct-count estimation A compact estimate of the number of distinct observed values. 03 ### Bounded-memory summaries The stream representation used by the supported estimation workflow. 04 ### Error-aware checking The associated bound and reference-count checks for qualification. AVAILABLE NOW ## One product. Three ways to work. sketchstream is fully available with CLI, MCP and headless access. Use the interface that fits your terminal, your agents or your automated workflow. 01 / CLI ### For your terminal. Run the product from a terminal or script, alongside the tools your team already uses. [Get CLI access](https://spin-forge.com/contact?product=forge15%2Fsketchstream&interface=cli&brief=I+would+like+sketchstream+access+through+CLI.+Please+share+the+setup+documentation+and+configuration+for+the+selected+product.+We+will+confirm+the+environment%2C+license+scope+and+workflow+during+onboarding.) 02 / MCP ### For your agents. Connect MCP-compatible clients and agents to the product’s exposed capabilities. [Get MCP access](https://spin-forge.com/contact?product=forge15%2Fsketchstream&interface=mcp&brief=I+would+like+sketchstream+access+through+MCP.+Please+share+the+setup+documentation+and+configuration+for+the+selected+product.+We+will+confirm+the+environment%2C+license+scope+and+workflow+during+onboarding.) 03 / HEADLESS ### For your workflows. Operate without a graphical interface in unattended, scheduled or pipeline-driven work. [Set up headless access](https://spin-forge.com/contact?product=forge15%2Fsketchstream&interface=headless&brief=I+would+like+sketchstream+access+through+headless.+Please+share+the+setup+documentation+and+configuration+for+the+selected+product.+We+will+confirm+the+environment%2C+license+scope+and+workflow+during+onboarding.) Product-specific inputs, hardware requirements and result guarantees still apply. An access mode does not change your license or deployment scope. [Explore all product interfaces](https://spin-forge.com/developers?section=access-directory) EXAMPLE CUSTOMER WORKFLOW ## Measure a large telemetry stream A team needs counts and cardinality summaries without turning the entire stream into an in-memory dataset. Illustrative use of the supported scope, not a customer case study or a measured result. 1. 01 Define the supported stream and required counting queries. 2. 02 Process the stream within the summary-memory budget. 3. 03 Compare qualification estimates with exact reference counts and accepted error conditions. IN YOUR WORKFLOW ## Start with your task. Agree the useful outcome. Streaming analytics, telemetry and data-engineering teams with frequency or cardinality workloads. What you bring The stream, query types, required error settings and available memory. What a useful evaluation measures - Frequency and cardinality error under stated assumptions - Throughput for the full stream-processing path - Memory consumed by the summaries Where it fits Use the selected product in a qualified customer environment, or agree a defined implementation with SpinForge. A hosted or managed service is quoted for its actual operating responsibilities; it is not automatically included with software access. QUESTIONS BEFORE YOU BUY ## A clear scope. No hidden assumptions. **How can we use sketchstream?**CLI, MCP and headless access are all available. Run from a terminal or script, connect an MCP-compatible client, or use the product without a graphical interface. Choose the mode during onboarding and receive its setup instructions. Runtime requirements and supported operations remain product-specific. **What is the important product boundary? **Frequency and distinct-count estimates have different statistical properties. They are not interchangeable exact counts. The reported 2.05-billion-element run and 5,000-key check belong to the supplied campaign, not a universal throughput guarantee. **What comes with the selected license? **The agreed sketchstream release, its supported interfaces and outputs, the applicable checks and the support stated in your order. The plan defines users, workflow, environment and capacity. Source-code transfer, unrestricted redistribution and bespoke engineering are not automatically included. **Can SpinForge implement or operate it for us? **Request a scoped engineering or operated-service proposal. It identifies what our team delivers, where the workload runs, infrastructure costs, acceptance requirements and ongoing support. Your software subscription alone does not activate a hosted runtime. [Explore engineering](https://spin-forge.com/engineering) **What evidence is available for review? **P44 / Company-reported. The supplied campaign processed 2.05 billion elements on an A10G. The reported frequency check compared 5,000 keys with exact counts; none undercounted and all stayed within the stated bound. That is not a validation of every distinct-count estimate. These descriptions come from the supplied product and campaign material. Website checks are not an independent rerun of the engine. Qualification identifies the actual release, workload and available artifacts. [Read the evidence summary](https://spin-forge.com/results) SOFTWARE / OPERATED DELIVERY By proposal Customer-hosted access and a service operated by SpinForge are different scopes. Confirm the release, deployment and included support before activation. [Plans & delivery](https://spin-forge.com/pricing) PUT SKETCHSTREAM TO WORK ## Tell us what needs to improve. Bring a representative workload and the result your team needs. We’ll define the product, deployment and engineering scope around that task. [Discuss this workflow](https://spin-forge.com/contact?product=forge15%2Fsketchstream&brief=Product%3A+sketchstream%0AOur+challenge%3A+The+stream+is+much+larger+than+the+memory+budget%0AWorkload+%2F+baseline%3A+%0AEnvironment%3A+%0ARequired+output%3A+%0AAcceptance+measures%3A+Frequency+and+cardinality+error+under+stated+assumptions%3B+Throughput+for+the+full+stream-processing+path%3B+Memory+consumed+by+the+summaries%0ADelivery+preference+%28software+%2F+engineering+%2F+managed%29%3A+) **Related products, workflows and system connections + **RELATED CAPABILITIES ## Connect the right products. Distinct responsibilities. Explore each scope before choosing a combined deployment. [### ANNForge Approximate nearest-neighbor search over large vector collections, with recall checked against exact reference queries.](https://spin-forge.com/forge15/annforge) [### GraphForge Graph-analysis software for PageRank, connected components and shortest paths, with independent result checks.](https://spin-forge.com/forge15/graphforge) [### StateForge A GPU-native persistent-state engine connecting supported live-data, computation, indexing, transaction and persistence workflows.](https://spin-forge.com/stateforge) ONE PLATFORM / OR A DIRECT PURCHASE ## Checked Decisions with sketchstream. Activate this capability inside a qualified checked decisions workflow. Compatible methods and required shared checking are included once within that workflow; the product remains independently purchasable. Capacity, release, environment, result contract and operating responsibilities are specified before activation. Choosing an additional method is not permission to add an unrelated workload or unqualified deployment. [Explore Checked Decisions](https://spin-forge.com/platform/checked-decisions) [Choose workflow capacity](https://spin-forge.com/plans?configuration=checked-decisions&product=forge15/sketchstream) CONNECTED WORKFLOWS ## Use sketchstream in your workflow. The product remains independently available. These customer-specific solution paths use the relevant supported capabilities, with integration and delivery rights agreed separately. [09 ### Private computational deployments Use the appropriate SpinForge capability in a supported customer-controlled environment. Choose CPU execution where the product supports it and acceleration where the workload justifies it.](https://spin-forge.com/solutions/private-computation) [05 ### Performance & release checks Make performance and quality evaluation a repeatable part of your release process. Compare an agreed workload before a change is accepted into production.](https://spin-forge.com/solutions/release-checks) [Explore all 17 solution workflows](https://spin-forge.com/workflows) FROM PRODUCT TO CUSTOMER WORKFLOW ## A useful outcome. A defined delivery. Commission the model, integration and acceptance work needed for your task. Existing products stay independently available. [03 / Scoped customer program ### Improve a computational workflow Commission a bounded performance improvement with source identity, numerical acceptance and the appropriate checking evidence.](https://spin-forge.com/programs/compute-improvement) [Explore decision programs](https://spin-forge.com/decision-systems) THE WHOLE-SYSTEM ROLE ## sketchstream in a wider workflow. Estimate hot workload/state classes and target profiling or retrieval effort. POTENTIAL SYSTEM CONTRIBUTION Approximate telemetry must not authorize hard constraints without a sufficient conservative or exact check. [S1 · Joint workload & machine optimization](https://spin-forge.com/system-synergies/joint-configuration) [S2 · Decision-sensitive computation](https://spin-forge.com/system-synergies/decision-sensitive-compute) [S3 · Checked computational memory](https://spin-forge.com/system-synergies/checked-computational-memory) [See this product in the map](https://spin-forge.com/system-synergies/product-map?q=sketchstream) [Define an integration evaluation](https://spin-forge.com/system-synergies/evaluation) The product is independently available through CLI, MCP and headless access. The joins above are integration candidates; compatibility, authority, data rights and end-to-end benefit must be established for the selected workflow. START WITH THIS PRODUCT Use the software directly or ask us to scope the implementation. [Software access](https://spin-forge.com/plans?product=forge15/sketchstream) [Have us do the work](https://spin-forge.com/contact?product=forge15/sketchstream&delivery=engineering)