If it has an HTTP endpoint, it works.

Stripe, AWS, your internal microservices, or the SaaS tool you found yesterday — if it has an HTTP endpoint, KnoxCall proxies it, injects the credentials at the wire, and audits every call. The APIs below are just the ones our customers protect most.

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Works with the APIs you already pay for.

No per-provider plugins, no connectors to install — these are simply the routes our customers configure most. Every one gets the same vault, audit trail, rate limits, and instant revocation.

  • Any HTTP APIREST, SOAP, GraphQL
  • Zero code changesOne base-URL swap
  • No SDK requiredEvery language
  • Internal APIs tooPrivate & legacy services

Payments & Billing

  • StripeCustody of your Stripe API keys with automatic rotation — the keys never enter your workload. Card data goes straight to Stripe, not through KnoxCall.Environment-aware routing · Test/Live key separation · Webhook signature verification
  • PayPalOAuth2 token management for PayPal's REST API.Auto token refresh · Sandbox/Production switching
  • SquarePoint-of-sale and online payment security.OAuth credential management · Multi-location support
  • PlaidBank account verification and financial data APIs.Link token generation · Encrypted credential storage

Communication & Messaging

  • SendGridEmail delivery with IP allowlisting and usage monitoring.API key rotation without downtime · Rate limit monitoring · Delivery analytics
  • TwilioSMS, voice, and video API security.Auth token protection · Usage alerts · Multi-account management
  • MailgunTransactional email with credential protection.Domain-based routing · Webhook validation
  • PostmarkEmail delivery with enhanced monitoring.Server token management · Bounce tracking
  • SlackWorkspace integration with OAuth management.Bot token security · Webhook signature verification

Cloud & Infrastructure

  • AWSS3, Lambda, DynamoDB, and all AWS services.IAM credential management · Temporary credential generation · Multi-region support
  • Google CloudGCS, BigQuery, Cloud Functions security.Service account JSON protection · OAuth2 token refresh
  • AzureMicrosoft Azure service integration.Azure AD authentication · Storage account keys
  • DigitalOceanSpaces, Droplets, and Kubernetes APIs.API token rotation · Team access control

Business & Productivity

  • SalesforceCRM integration with OAuth management.Connected app credentials · Token refresh automation
  • HubSpotMarketing and sales platform APIs.OAuth2 app credentials · Rate limit handling
  • Google WorkspaceGmail, Drive, Calendar, Sheets APIs.Service account management · Domain-wide delegation
  • Microsoft 365Outlook, OneDrive, Teams integration.Azure AD OAuth tokens · Graph API access
  • KlaviyoEmail marketing automation platform.Private API key security · Multi-account support

Development & Monitoring

  • GitHubRepository management and CI/CD integration.Personal access tokens · GitHub App credentials
  • GitLabSource control and DevOps platform.Project/Group tokens · CI/CD variable encryption
  • DatadogMonitoring and observability platform.API key + App key security · Metric submission
  • SentryError tracking and performance monitoring.DSN protection · Organization token management

Your API isn't listed? Perfect.

We don't keep an integrations list to maintain — KnoxCall proxies any HTTP request to any endpoint. Internal APIs, legacy SOAP services, the startup tool with three customers: all secured the same way. Tomorrow you could be securing an API that doesn't exist today. That's the whole point.

Store. Proxy. Revoke.

Free for seven days. No card. Your first call in minutes.

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