Citation and commercial use
Editorial and research citations should link to the canonical CostInflation page for the relevant index and observation date. Commercial use is governed by the Terms of Service.
Data partnerships
CostInflation Data Partnerships
CostInflation publishes price histories by city for grocery, pet, household, personal-care, and consumer health retail goods. Each observation includes a date. Licensing and commercial access are available by agreement.
Explore the paid pilotOne-off paid pilot
Category price brief
Preparing a category review for your consumer brand? Compare how one price index changed across the city areas you choose.
1 index · Up to 3 city areas · One 30-day window
Choose from existing indices and available history. Before quoting, we check that our data covers your question.
What the brief includes
- Short PDF: a price-history chart, city comparison table, and summary of the observed movement.
- Aggregate CSV: daily index values for the agreed period and city areas, with dates, units, datapoint counts, and update timestamps.
- Reading notes: index definition, coverage, gaps, methodology, and canonical citation links.
Request a pilot quote
Tell us the decision this brief would support and your budget range, if known.
Before work begins, we confirm in writing what the data covers, what we will deliver, the fee, the delivery date, and how you may use it.
Email about a paid pilotOpens an editable email. You review and send it.
Prefer to write your own email?
Email contact@costinflation.com with the subject “Paid pilot inquiry: Category price brief” and these details:
- Organization and role
- Business question for our internal category review
- Index or category of interest
- City areas (up to 3)
- 30-day period of interest
- Target delivery date
- Budget range and currency (if known)
Public data coverage
Explore the indices →- Price indices
- 97
- Cities
- 12
- Datapoints
- 8,214,502
Schema preview
Available fields include stable series IDs, canonical citation URLs, city labels, observation dates, values, price observation counts, and update timestamps.
| Field | Meaning |
|---|---|
series_id | Stable index identifier. |
series_title | Index title. |
canonical_url | Citable HTML page for the index. |
geography_type | Geographic level of the observation. |
geography_id | Stable postal-code identifier. |
geography_label | City and neighborhood label. |
observed_date | Date represented by the daily value. |
value_usd | Daily price-index value in U.S. dollars. |
datapoint_count | Price observations contributing to the daily value. |
computed_at | Time the daily value was updated. |
Available data
- Check which indices, cities, and retail-goods categories we cover.
- See when prices were recorded and the data was last updated.
- Read the index methods, corrections, and citation details on each canonical page.
- Agree on what you need, the format, update schedule, usage rights, and commercial terms.
Contact
For AI grounding, publishing, research, or commercial licensing, email contact@costinflation.com. Tell us how you plan to use the data, which categories and cities you need, and how often you need updates.