Powens vs Salt Edge Account Information

Powens

Powens documents a REST API with Markdown docs, cursor pagination, date filters and a hard-delete call for connections, under a French payment institution licence. No OpenAPI file, public price, status page, idempotency key or server SDK was found, and live access needs a signed purchase order.

Salt Edge Account Information

5,000-plus banks in more than 50 countries, by Salt Edge's own count. Rate limit exceeded returns HTTP 406 RateLimitExceeded, not 429.

Powens

1. Ask the owner for the domain name, client ID and client secret from the console. Every call goes to https://{domain}.biapi.pro/2.0
2. Send limit on every transactions list. It is required, at most 1,000, and the next page comes from _links.next.href used as given
3. Enable an account with POST and {"disabled": false} only after the account holder consents. Accounts arrive disabled with no transactions
4. Store the permanent user token as a secret. It does not expire, and the default webhook sends it in the Authorization header
5. Stay under 30 calls a minute in the sandbox and use webhooks in place of polling, as the fair usage policy asks

Salt Edge Account Information

1. Treat HTTP 406 with error_class RateLimitExceeded as a rate limit and back off; it isn't a content-negotiation error
2. Start with fakebank_simple_xf in country XF; it needs no bank sandbox
3. Sign requests from the start even in Test, so the move to Live doesn't change your client
4. Follow next_page from the meta block rather than building from_id URLs yourself
5. Revoke with PUT /api/v6/consents/{consent_id}/revoke when the user is done