List PIX participant bank ids
Returns the SPI participating-PSP catalog reduced to what a payment form needs: ispb plus the participant’s legal name (razão social), per §8.6.1. It takes no parameters - §8.6.1 declares none and the plugin adds no filter, page or sort - so the entire catalog arrives in one response, in the order JDPI returns it.
It is a live passthrough on every call with nothing cached, so this route’s latency and availability are JDPI’s. Keep ispb a STRING: it is 8 characters and its leading zeros are significant (00000208), so parsing it as a number corrupts it. An empty catalog is 200 with an empty data array, not an error. JDPI unreachable or faulting is 503 PIX-1050, and a timeout is 504 PIX-1051.
GET /v1/banks/participants reads the SAME §8.6.1 call and returns the full record; use it when you need cnpj, participation type, modality or status.

