Customers

Teams that ship on Halyard

From data APIs that bill by the call to agent platforms issuing a key per agent. Here is what they run, and what changed when they moved.

−88%billing disputesTidewell replaced four vendors with one gateway and stopped arguing with customers about invoicesRead the story

180klive agent keysVantra gives every AI agent its own key and a spend cap it cannot talk its way pastRead the story

In production

What they run on Halyard

A key and a spend cap per AI agentRead story
Partner API with per-tenant limits
Usage billing for a document API
Port data sold by the requestRead story
Regional routing for EU customers
Key rotation across 40 services
Shadow-mode limits for public endpoints
Audit logs for a fintech API

Agents don't get tired and they don't get embarrassed. The cap has to sit outside the agent, at the gateway, or it isn't really a cap.

Lena HartmannHead of Platform, Vantra

Ship your next API on Halyard

Free for your first million requests each month. After that you pay per million, with no gateway to run yourself. See pricing

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