How do I access an NSS API to verify Social Security numbers via IMSS in Mexico?
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I am developing an employment verification service for a Mexican lending platform and need programmatic access to NSS (Número de Seguridad Social) data via an NSS API. Our use case requires confirming whether a given NSS is active and corresponds to a real IMSS-registered worker before proceeding with loan underwriting.
The data we need from the NSS API includes:
NSS validity: confirmation the number is structurally valid and registered in IMSS
Employment status: whether the worker is currently registered with an employer (patron)
Cross-reference with CURP: the NSS should match the CURP we already have on file
Last contribution period: to estimate income continuity for credit scoring
I understand that IMSS does not expose a public NSS API directly, so I am looking for authorized third-party providers. The critical concern is data authorization — we are a regulated entity and cannot use a provider that obtains NSS data through unauthorized means. Any provider we use must be able to provide documentation of their data access agreement with IMSS or an authorized data intermediary.
Additional requirements: REST JSON interface, sub-2-second response time, clear SLA documentation, and a sandbox environment with synthetic NSS test cases for integration testing. We also need the provider to handle cross-validation between NSS and CURP natively, since our onboarding flow collects both. If the NSS API can be bundled with CURP, RFC, and IMSS data in a single unified identity verification product, that would significantly simplify our architecture.
Has anyone evaluated NSS API providers in a regulatory-compliant fintech context in Mexico? Recommendations and comparisons would be highly appreciated. I have started browsing apipull.com API Hub for Mexico API providers but have not yet found a specific NSS API comparison. Any direct experience with providers that meet the above criteria would be valuable.
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I am developing an employment verification service for a Mexican lending platform and need programmatic access to NSS (Número de Seguridad Social) data via an NSS API. Our use case requires confirming whether a given NSS is active and corresponds to a real IMSS-registered worker before proceeding with loan underwriting.
The data we need from the NSS API includes:
I understand that IMSS does not expose a public NSS API directly, so I am looking for authorized third-party providers. The critical concern is data authorization — we are a regulated entity and cannot use a provider that obtains NSS data through unauthorized means. Any provider we use must be able to provide documentation of their data access agreement with IMSS or an authorized data intermediary.
Additional requirements: REST JSON interface, sub-2-second response time, clear SLA documentation, and a sandbox environment with synthetic NSS test cases for integration testing. We also need the provider to handle cross-validation between NSS and CURP natively, since our onboarding flow collects both. If the NSS API can be bundled with CURP, RFC, and IMSS data in a single unified identity verification product, that would significantly simplify our architecture.
Has anyone evaluated NSS API providers in a regulatory-compliant fintech context in Mexico? Recommendations and comparisons would be highly appreciated. I have started browsing apipull.com API Hub for Mexico API providers but have not yet found a specific NSS API comparison. Any direct experience with providers that meet the above criteria would be valuable.