Developer docs

Build with Zero Proof

Two services for agentic commerce. zkFetch proves what an API returned. The intent model reads what the user actually asked for. Each ships with a skill file you hand to your coding agent.

Proof of data · REST API

zkFetch

What the API really returned, signed.

Generate a cryptographic proof that a specific HTTPS request was made and returned a specific response, without trusting the party who made it. Credentials stay hidden, chosen fields are selectively revealed, and proofs verify off-chain in milliseconds or on-chain on any EVM.

Called by
plain HTTP, any language
Verified
off-chain in ms, or on-chain on any EVM
Hides
API keys, tokens, any field you name
Use when
an agent acts on data it fetched

Intent detection · OpenAI API + MCP

Intent model

What the user actually asked for, as JSON.

zeroproof-ecommerce-1b classifies a payment-assistant conversation into one of seven intent types and returns a single JSON verdict with typed details, confidence, and the user messages that support it. Open weights, hosted warm, sub-second responses. An API key is required.

Called by
MCP tool or OpenAI-compatible API
Returns
one JSON verdict, typed per intent
Latency
sub-second, always warm
Use when
an agent must know what the user wants