
Open-source MCP server and harness adapters that let Claude Code, Codex, OpenCode, pi, and OMP agent sessions exchange messages and wake idle agents on the same machine using plain files.
Prices and medians update for the tier you select. Caution: thin market — treat statistics as indicative.
Ranked by how closely each one matches harness-summit's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
Thin market — few comparable priced products; treat statistics as indicative.