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City dataBudget & Spending

Contracts

Published by City of Chicago · Updated 10/30/2026 · Daily

Last updated
10/30/2026
First published 09/14/2015
Update frequency
Daily
Formats
3
CSV, JSON, XML
Coverage
Chicago
City in Illinois

About this dataset

Contracts and modifications awarded by the City of Chicago since 1993. This data is currently maintained in the City’s Financial Management and Purchasing System (FMPS), which is used throughout the City for contract management and payment. Legacy System Records: Purchase Order/Contract Numbers that begin with alpha characters identify records imported from legacy systems. Records with a null value in the Contract Type field were imported from legacy systems. "Comptroller-Other" Contract Type: Some records where the Contract Type is "COMPTROLLER-OTHER" are ordinance-based agreements and may have start dates earlier than 1993. Depends Upon Requirements Contracts: If the contract Award Amount is $0, the contract is not cancelled, and the contract is a blanket contract, then the contract award total Depends Upon Requirements. A Depends Upon Requirements contract is an indefinite quantities contract in which the City places orders as needed and the vendor is not guaranteed any particular contract award amount. Blanket vs. Standard Contracts: Only blanket contracts (contracts for repeated purchases) have FMPS end dates. Standard contracts (for example, construction contracts) terminate upon completion and acceptance of all deliverables. These dates are tracked outside of FMPS. Negative Modifications: Some contracts are modified to delete scope and money from a contract. These reductions are indicated by negative numbers in the Award Amount field of this dataset. Data Owner: Procurement Services. Time Period: 1993 to present. Frequency: Data is updated daily.

Files and access

Links open the official government source

API endpoint: https://data.cityofchicago.org/resource/rsxa-ify5.json

Links open outside websites we do not control.

Frequently asked questions

Who publishes Contracts?
City of Chicago publishes this dataset on Chicago Data Portal.
How often is it updated?
The publisher lists the update frequency as daily. The last update was on 10/30/2026.
How do I download it?
It is available as CSV, JSON, XML. Use the links in Files and access, which open the official government source.

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Where this catalog comes from

Catalog checked 10/30/2026

We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.

Source: Chicago Data Portal and Data.gov · Last updated 10/30/2026 · Listing only; the data stays with the publisher

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