FASTag / NETC API Integration
Query FASTag balance and tag status by vehicle registration number for fleet and mobility platforms.
What FASTag / NETC API integration does
FASTag runs on NPCI's National Electronic Toll Collection network, and the API most businesses need from it is not payment but status: given a vehicle registration number, is there an active tag, and what is its balance? For anyone operating vehicles at scale that single question has real operational consequences.
A truck dispatched onto a tolled route with a blocked tag or an empty balance is a delay, a manual cash payment and a reconciliation problem. Checking before dispatch turns that into a pre-trip check. Beyond fleet operations, tag status is a useful signal in vehicle-linked lending and insurance, where an active tag corroborates that a vehicle is real, registered and in use.
What teams build with it
Pre-dispatch fleet checks
Verify tag status and balance before a vehicle is assigned to a tolled route, avoiding delays and manual toll payments.
Fleet balance monitoring
Monitor balances across a fleet and trigger top-ups before a tag runs dry.
Vehicle verification
Use tag status alongside Vahan RC data to corroborate that a vehicle is genuine and actively operated.
Mobility platform onboarding
Check tag status when onboarding vehicles to a logistics or mobility marketplace.
Endpoints included
GET/netc/v1/tag/statusReturns FASTag status and bank for a vehicle.
Try it in the sandbox
https://sandbox.aeologic.io/netc/v1/tag/status{
"vehicle_no": "DL3CAB1234"
}What you need before we start
- Vehicle registration numbers for the fleet or vehicles in scope
- A defined action for the low-balance and blocked-tag cases
- Expected query volume, for rate-limit sizing
How we deliver it
- Scoping of query patterns — per-dispatch, scheduled sweep, or both
- Sandbox integration and response mapping
- Alerting design for low balance and blocked status
- Production access sized to fleet volume
Related Payments integrations
Industries using FASTag / NETC
FASTag / NETC API integration — FAQs
What does the FASTag query return?
Tag status and balance for a vehicle, resolved by its registration number.
Can we check an entire fleet at once?
Yes. Scheduled batch sweeps across a fleet are a normal usage pattern and we size rate limits accordingly.
Can we recharge tags through this integration?
The catalog integration covers status and balance queries. Recharge flows are scoped separately as part of a wider mobility engagement.
Ship FASTag / NETC in days
Tell us your stack and we'll wire up FASTag / NETC API integration for your team.
Talk to Aeologic