# Cannot access APIv4 from n8n while v2 works great **URL:** \ **Category:** Uncategorized\ **Created:** [October 3, 2026, 1:27am UTC](https://forum.manager.io/t/cannot-access-apiv4-from-n8n-while-v2-works-great/69808 "2026-10-03T01:27:48Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![nicolaszein](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@nicolaszein](https://forum.manager.io/u/nicolaszein)\ **Post date:** [October 3, 2026, 1:27am UTC](https://forum.manager.io/t/cannot-access-apiv4-from-n8n-while-v2-works-great/69808/1 "2026-10-03T01:27:48Z")
Hello, i am not able to access the API in v4 from n8n while the same request form v2 works with the same setup. Any ideas? From HTTP Request Error code `401` Full message ```auto 401 - "{\"error\":\"authentication_required\",\"message\":\"Authentication is required to access this endpoint.\"}" ``` Request ```auto { "headers": { "x-api-key": " **hidden**", "accept": "application/json,text/html,application/xhtml+xml,application/xml,text/*;q=0.9, image/*;q=0.8, */*;q=0.7" }, "method": "GET", "uri": "https://mydomainhere.cpt.manager.cloud/api4/balance-sheet-account?Key=01a0e4c9-f459-7f55-8b8c-1dc274daec55", "gzip": true, "rejectUnauthorized": true, "followRedirect": true, "resolveWithFullResponse": true, "sendCredentialsOnCrossOriginRedirect": false, "followAllRedirects": true, "timeout": 300000, "encoding": null, "json": false, "useStream": true } ``` ---
**Author:** ![Mabaega](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/mabaega/32/47471_2.png) [@Mabaega](https://forum.manager.io/u/Mabaega)\ **Post date:** [October 3, 2026, 2:17am UTC](https://forum.manager.io/t/cannot-access-apiv4-from-n8n-while-v2-works-great/69808/2 "2026-10-03T02:17:37Z")
**Api v4** does **not** accept your existing `X-API-KEY`. It uses **HTTP Basic Auth** instead. ```auto #!/usr/bin/env python3 """ Fetch a calculated Profit and Loss Statement from Manager.io Cloud via /api4. Fill in the configuration values below, then run: pip install requests python manager_pl_report.py This uses HTTP Basic Auth, not /api2's X-API-KEY. Use a dedicated, permission-restricted user (not your personal/admin login) scoped to only this business, with "View" + "Create" permission on Reports > Profit and Loss Statement (Settings > Users in Manager). Once you've filled in real credentials below, keep this file private — don't commit it or share it with anyone. """ import sys from datetime import date import requests # ── Configuration — fill these in ──────────────────────────────────────── SUBDOMAIN = "" # from https://.manager.io USERNAME = "" # dedicated restricted user — not your admin login PASSWORD = "" BUSINESS = "" # exact business name as shown in Manager FROM_DATE = date(2026, 1, 1) TO_DATE = date(2026, 12, 31) ACCOUNTING_METHOD = 0 # 0 = Accrual Basis, 1 = Cash Basis # ────────────────────────────────────────────────────────────────────────── BASE_URL = f"https://{SUBDOMAIN}.manager.io" def create_profit_and_loss_report(session: requests.Session, from_date: date, to_date: date, accounting_method: int) -> str: """Creates a report definition and returns its key (GUID string).""" payload = { "business": BUSINESS, "value": { "periods": [ {"fromDate": from_date.isoformat(), "toDate": to_date.isoformat()} ], "accountingMethod": accounting_method, "accountCodes": False, "excludeZeroBalances": False, }, } response = session.post(f"{BASE_URL}/api4/profit-and-loss-statement", json=payload) response.raise_for_status() return response.json() # the endpoint returns the new key as a raw JSON string def get_profit_and_loss_view(session: requests.Session, key: str) -> dict: """Returns the calculated report: title, columns, hierarchical rows, cells.""" params = {"business": BUSINESS, "key": key} response = session.get(f"{BASE_URL}/api4/profit-and-loss-statement-view", params=params) response.raise_for_status() return response.json() def delete_profit_and_loss_report(session: requests.Session, key: str) -> None: """Cleans up the throwaway report definition created above.""" params = {"business": BUSINESS, "key": key} response = session.delete(f"{BASE_URL}/api4/profit-and-loss-statement", params=params) response.raise_for_status() def print_report(report: dict) -> None: print(report.get("title", "Profit and Loss Statement")) for subtitle in report.get("subtitles", []): print(f" {subtitle}") print() columns = report.get("columns", []) header = "Account".ljust(40) + "".join(c["name"].rjust(15) for c in columns) print(header) print("-" * len(header)) def print_rows(rows, indent=0): for row in rows: label = (" " * indent + row["name"])[:40].ljust(40) if row.get("rows"): print(label) print_rows(row["rows"], indent + 1) else: cells = row.get("cells") or [] values = "".join((c.get("text") or "").rjust(15) for c in cells) print(label + values) print_rows(report.get("rows", [])) def main() -> None: if not USERNAME or not PASSWORD: sys.exit("Fill in USERNAME and PASSWORD at the top of this file before running.") session = requests.Session() session.auth = (USERNAME, PASSWORD) print(f"Creating P&L report definition for '{BUSINESS}' ({FROM_DATE} to {TO_DATE})...") key = create_profit_and_loss_report(session, FROM_DATE, TO_DATE, ACCOUNTING_METHOD) print(f"Report key: {key}") print("Fetching calculated report...") report = get_profit_and_loss_view(session, key) print() print_report(report) delete_profit_and_loss_report(session, key) if __name__ == " __main__": try: main() except requests.HTTPError as exc: status = exc.response.status_code if exc.response is not None else "?" body = exc.response.text if exc.response is not None else str(exc) print(f"Request failed: {status} {body}", file=sys.stderr) sys.exit(1) ``` ---
**Author:** ![nicolaszein](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@nicolaszein](https://forum.manager.io/u/nicolaszein)\ **Post date:** [October 3, 2026, 2:34am UTC](https://forum.manager.io/t/cannot-access-apiv4-from-n8n-while-v2-works-great/69808/3 "2026-10-03T02:34:25Z")
You are amazing, thank you so much!! ---
**Author:** ![eko](https://avatars.discourse-cdn.com/v4/letter/e/a8b319/32.png) [@eko](https://forum.manager.io/u/eko)\ **Post date:** [October 3, 2026, 7:50am UTC](https://forum.manager.io/t/cannot-access-apiv4-from-n8n-while-v2-works-great/69808/4 "2026-10-03T07:50:22Z")