ADP offers industry-leading online payroll and HR solutions, plus tax, compliance, benefit administration and more.
API styles
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Developer docs
API Reference
Webhooks
Webhooks management API
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Sandbox environment
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Authentication
Identity protocols
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SSO / Social login
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OAuth playground
GraphQL playground
API Explorer
Postman / Insomnia collections
OpenAPI/Swagger specs
Free developer account
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App listing requirements
Pagination style
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CLI
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Query Language
Community
GitHub
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Custom object support
Stackoverflow tags
Integrations
Ecosystem
API pricing
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API rate limits
API changelog
Status page
Open-source
Tutorials
Samples & examples
Base endpoint
GraphQL endpoint
IDE Extensions
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Estimated developers
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Estimated customers
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Estimated users
4000000
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