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fix: add browser headers to all API requests to resolve 403 on usage endpoint

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Claude's usage/prepaid/overage endpoints require Origin, Referer, and
User-Agent headers to pass CORS/auth checks. Without them, bootstrap
succeeds (more permissive) but usage returns 403 -> 'Not signed in'.

Added claudeAPIRequest(for:) helper that sets all required browser-like
headers on every request. Bootstrap, usage, prepaid, overage, and the
orgs fallback all go through it.
This commit is contained in:
superdooper86
2026-05-11 09:36:35 +02:00
parent 6749c5f158
commit e939bdb88b
3 changed files with 25 additions and 19 deletions
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ClaudeChecker/UsageViewModel.swift
+22 -17
View File
@@ -128,12 +128,25 @@ class UsageViewModel: ObservableObject {
// MARK: - Bootstrap (org ID + email + plan label in one call)
private func claudeAPIRequest(for url: URL) async -> URLRequest {
var req = URLRequest(url: url)
req.setValue("application/json, text/plain, */*", forHTTPHeaderField: "accept")
req.setValue("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36", forHTTPHeaderField: "User-Agent")
req.setValue("https://claude.ai", forHTTPHeaderField: "Origin")
req.setValue("https://claude.ai/", forHTTPHeaderField: "Referer")
req.setValue("same-origin", forHTTPHeaderField: "sec-fetch-site")
req.setValue("cors", forHTTPHeaderField: "sec-fetch-mode")
req.setValue("empty", forHTTPHeaderField: "sec-fetch-dest")
if let cookie = await claudeCookieHeader() {
req.setValue(cookie, forHTTPHeaderField: "Cookie")
}
return req
}
private func fetchBootstrap() async throws -> (orgId: String?, email: String?, planLabel: String?) {
let url = URL(string: "https://claude.ai/api/bootstrap")!
var req = URLRequest(url: url)
req.setValue("application/json", forHTTPHeaderField: "accept")
guard let cookie = await claudeCookieHeader() else { throw AppError.notAuthenticated }
req.setValue(cookie, forHTTPHeaderField: "Cookie")
var req = await claudeAPIRequest(for: url)
guard req.value(forHTTPHeaderField: "Cookie") != nil else { throw AppError.notAuthenticated }
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
@@ -152,11 +165,9 @@ class UsageViewModel: ObservableObject {
if orgId == nil {
orgId = (json["organizations"] as? [[String: Any]])?.first?["uuid"] as? String
}
if orgId == nil, let cookie = await claudeCookieHeader() {
if orgId == nil {
// Final fallback: fetch /api/organizations directly
var orgsReq = URLRequest(url: URL(string: "https://claude.ai/api/organizations")!)
orgsReq.setValue("application/json", forHTTPHeaderField: "accept")
orgsReq.setValue(cookie, forHTTPHeaderField: "Cookie")
let orgsReq = await claudeAPIRequest(for: URL(string: "https://claude.ai/api/organizations")!)
if let (orgsData, orgsResp) = try? await URLSession.shared.data(for: orgsReq),
let orgsHttp = orgsResp as? HTTPURLResponse, orgsHttp.statusCode == 200,
let orgs = try? JSONSerialization.jsonObject(with: orgsData) as? [[String: Any]] {
@@ -187,9 +198,7 @@ class UsageViewModel: ObservableObject {
private func fetchUsage(orgId: String) async throws -> UsageResponse {
let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/usage")!
var req = URLRequest(url: url)
req.setValue("application/json", forHTTPHeaderField: "accept")
if let cookie = await claudeCookieHeader() { req.setValue(cookie, forHTTPHeaderField: "Cookie") }
let req = await claudeAPIRequest(for: url)
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
@@ -199,9 +208,7 @@ class UsageViewModel: ObservableObject {
private func fetchPrepaidCredits(orgId: String) async throws -> PrepaidCredits? {
let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/prepaid/credits")!
var req = URLRequest(url: url)
req.setValue("application/json", forHTTPHeaderField: "accept")
if let cookie = await claudeCookieHeader() { req.setValue(cookie, forHTTPHeaderField: "Cookie") }
let req = await claudeAPIRequest(for: url)
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
return try? JSONDecoder().decode(PrepaidCredits.self, from: data)
@@ -209,9 +216,7 @@ class UsageViewModel: ObservableObject {
private func fetchOverageSpendLimit(orgId: String) async throws -> OverageSpendLimit? {
let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/overage_spend_limit")!
var req = URLRequest(url: url)
req.setValue("application/json", forHTTPHeaderField: "accept")
if let cookie = await claudeCookieHeader() { req.setValue(cookie, forHTTPHeaderField: "Cookie") }
let req = await claudeAPIRequest(for: url)
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
return try? JSONDecoder().decode(OverageSpendLimit.self, from: data)