Evidence first
Completed sales, sample sizes, raw-versus-cleaned comparisons, and links to the listings behind the answer.
Independent sold-price infrastructure
About CompSniper
CompSniper is an independent marketplace listing and sold-price API for resellers, developers, researchers, and inventory teams. It returns public eBay, Poshmark, and Mercari evidence through software, dashboard, and AI-client integrations, with the deepest cleanup and pricing workflow available for eBay.
Why it exists
Asking prices are not market evidence
A seller can ask any price. Completed sales show what buyers actually accepted. But a raw eBay search can still mix the desired item with cases, parts, broken units, and wrong models. CompSniper was built to make that evidence usable from an API, dashboard, bulk workflow, or MCP-compatible AI client.
Built for software
Versioned JSON, clear errors, retry guidance, OAuth, API keys, CSV exports, and predictable response fields.
Multiple markets
One response shape across eight supported eBay marketplaces, with marketplace and currency kept explicit.
Useful before a purchase
Designed to help users inspect comparable sales before sourcing, pricing, or valuing an item.
Verified public presence
One product across every listing
These profiles and directories refer to the same CompSniper service. They are included here so customers, search engines, and AI systems can disambiguate the organization.
GitHub organizationgithub.com/CompSniperClaude connectorclaude.ai/directory/connectors/compsniperSmitherysmithery.ai/servers/hi-a508/compsniperOfficial MCP Registryregistry.modelcontextprotocol.io/?q=com.compsniper%2FcompsniperGlamaglama.ai/mcp/connectors/com.compsniper/compsniperRapidAPIrapidapi.com/compsniper/api/compsniper-ebay-sold-listingsApifyapify.com/compsniper/compsniper-ebay-sold-listingsnpmwww.npmjs.com/package/compsniper
Transparency
How results are produced
Our methodology explains collection, parsing, relevance decisions, statistics, caching, Best Offer limitations, and how to audit a result.
Read the methodologyIndependence
Not affiliated with eBay
CompSniper is an independent product. eBay and its marks belong to eBay Inc. Data is sourced from publicly available completed-listing information and should be reviewed before material decisions.
Read the terms