# Tata 1mg API documentation

Last updated 6 Nov 2026.

Reference for the Tata 1mg data on the Rewalto API, read from API contract 0.175.0. Requests go to https://api.rewalto.com with an API key sent as Authorization: Bearer. Each endpoint below lists its parameters, record fields, errors and credit cost.

## Key facts

| | |
| --- | --- |
| Base address | https://api.rewalto.com |
| Authentication | API key, as Authorization: Bearer |
| API contract | Version 0.175.0 |
| Tata 1mg price readings | 51 pins held · 1,41,974 readings on 6 Nov 2026 (Measured 6 Nov 2026) |
| Refresh | Daily (Last update 6 Nov 2026) |

## Endpoints

| Endpoint | Returns | Cost |
| --- | --- | --- |
| `GET /v1/data/listings?retailer=tata_1mg` | each Tata 1mg product Rewalto holds: title, brand, pack size, images, product link and its latest price, MRP and stock reading | 1 credit per 10 listings |
| `GET /v1/data/observations?retailer=tata_1mg` | every reading of a Tata 1mg product's price, MRP and stock, newest first, between two dates | 1 credit per 10 readings |

- [Tata 1mg product data API reference](https://rewalto.com/developers/docs/api/tata-1mg/products)
- [Tata 1mg price history API reference](https://rewalto.com/developers/docs/api/tata-1mg/price-history)

## Keys, errors and credits

Every endpoint shares the same key, error shape and credit rules.

- [Authentication](https://rewalto.com/developers/docs/authentication)
- [Errors](https://rewalto.com/developers/docs/errors)
- [Credits and receipts](https://rewalto.com/developers/docs/credits)

## Related

- [Tata 1mg API overview](https://rewalto.com/developers/api/tata-1mg)
- [Tata 1mg API contract for agents (OpenAPI)](https://api.rewalto.com/openapi/tata_1mg.json)
- [All documentation](https://rewalto.com/developers/docs)
- [Full API contract (OpenAPI)](https://rewalto.com/developers/openapi.json)
- [Data catalogue for agents](https://rewalto.com/developers/catalog.json)
- [MCP server tools](https://rewalto.com/developers/mcp)
- [Quickstart: your first request](https://rewalto.com/developers/docs/quickstart)
- [Pricing and free credits](https://rewalto.com/pricing)

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Canonical page: https://rewalto.com/developers/docs/api/tata-1mg
Last content change: 2026-11-06