Zong
Zong was a mobile carrier-billing micropayments company that let consumers buy digital goods, apps, and content and charge them directly to their mobile phone bill, without entering credit-card details. Founded in 2008 (spun out of Echovox) and led by CEO David Marcus, Zong was backed by Matrix Partners and NewMargin Ventures and published a developer API for selling and delivering content to mobile customers worldwide. eBay acquired Zong in 2011 for roughly $240M and folded its technology into PayPal; the brand went offline around May 2015 and zong.com now redirects to PayPal. The company is defunct and operates no live API or developer platform today.
Zong is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Zong is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.
← All providers · Data indexed from github.com/api-evangelist/zong · machine-readable index on apis.io
This is an independent, third-party profile of Zong, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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