Edge & Node

Edge & Node builds blockchain data infrastructure and advises institutions adopting it. The company says it created Graph Node, the open-source engine behind The Graph, and remains a core developer. Its offerings include Amp, which organizes blockchain activity into verifiable datasets accessible through SQL, and consulting for regulated institutions.

Its ampersend product combines developer tooling with a management platform for AI agent payments. According to its documentation, teams can integrate x402 payments into agent code, manage wallets, monitor transactions, and configure funding, approvals, and spending limits. The documentation distinguishes supported payment functionality from the proposed deferred settlement scheme, which it says ampersend does not yet support.

The supplied AI Engineer recording credits Edge & Node alongside Rodrigo Coelho and Pranav Maheshwari for “Agent Spending Without Controls.” Their presentation connects agents’ access to paid tools with the need for transaction oversight. Demonstrations compare tool access with and without payment capabilities and show sanctions screening rejecting a flagged wallet while allowing an ordinary wallet to transact. These examples illustrate the presentation’s argument; they do not independently establish production effectiveness.