Programmable Bonded Infrastructure

PBI, or Programmable Bonded Infrastructure, is a bond market for APIs, MCP servers, data feeds, RPC services and other software dependencies. Its platform lets service operators place USDC and $PBI in escrow against measurable promises, while customers and agents can review service records and the capital backing them. Promises are selected from a fixed menu, including availability, latency, freshness, deviation from an independent reference and MCP tool stability.

PBI says services are probed every minute, with probe batches anchored on Solana and records available for verification. When a service breaches its agreed targets, settlement follows protocol formulas: eligible customers who paid onchain may receive up to three times their payment from the operator’s USDC escrow, while a corresponding share of the service’s $PBI escrow is burned. PBI offers an online service board, protocol documentation, an MCP server, an SDK, an HTTP API and x402 endpoints.

Operators can claim services, publish signed service information, fund bonds and have their performance measured