
An open-source specification and reference implementation for governed, versioned, auditable workflow execution by MCP hosts, with deterministic tool allow-lists, checkpoint validation, fail-closed policies, and completion receipts.
Prices and medians update for the tier you select.
Ranked by how closely each one matches runbook.v1's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.