An MCP payment policy and human-approval layer for autonomous x402 agents. It evaluates payment policies, manages approval workflows, accepts externally signed wallet payloads, verifies settlements, and maintains an audit log.
Prices and medians update for the tier you select.
Ranked by how closely each one matches Signal402'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.