Sidecar (side.cr) was added to the API Evangelist network as a Union Square Ventures portfolio lead. The side.cr domain today hosts a transportation news and information content platform (self-described as "building the largest transportation news source powered by everyday people"), covering ridesharing, driving, delivery, safety, and automotive topics for riders and drivers. It is a reader-facing editorial site, not a developer platform: as of this enrichment pass it publishes no API, developer portal, documentation, SDKs, OpenAPI, or any /.well-known discovery surface. The name echoes the pioneering peer-to-peer Sidecar ridesharing company that Union Square Ventures backed and that wound down in 2015, but the current content site states no operational or corporate ties to that defunct service. This profile is retained as a company/lead record with no active API surface to enrich.
Sidecar is profiled on the APIs.io network. Tagged areas include Company, Transportation, Ride Hailing, Mobility, and Automotive.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/sidecar: open an issue to ask a question, or submit a pull request to add artifacts.
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aid: sidecar
deliveryModel:
model: unknown
open_source: false
commercial: false
callable_host: false
label: Delivery model not determined — needs a product licence on record
confidence: low
source:
- none
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: unknown
trial: false
try_now: false
public: false
label: Unknown
confidence: low
source: []
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sidecar.png
name: Sidecar
description: 'Sidecar (side.cr) was added to the API Evangelist network as a Union Square Ventures portfolio lead. The side.cr
domain today hosts a transportation news and information content platform (self-described as "building the largest transportation
news source powered by everyday people"), covering ridesharing, driving, delivery, safety, and automotive topics for riders
and drivers. It is a reader-facing editorial site, not a developer platform: as of this enrichment pass it publishes no
API, developer portal, documentation, SDKs, OpenAPI, or any /.well-known discovery surface. The name echoes the pioneering
peer-to-peer Sidecar ridesharing company that Union Square Ventures backed and that wound down in 2015, but the current
content site states no operational or corporate ties to that defunct service. This profile is retained as a company/lead
record with no active API surface to enrich.'
url: https://raw.githubusercontent.com/api-evangelist/sidecar/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- union-square-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
x-status-detail: Sidecar Technologies, the San Francisco peer-to-peer ridesharing company Union Square Ventures backed, announced
on 2015-12-29 that it would stop its ride and delivery service, and General Motors bought its assets and intellectual property
and hired about 20 of its staff on 2016-01-19. The side.cr domain now hosts an unrelated transportation news site with no
stated tie to the company.
x-status-date: '2015-12-29'
x-status-source:
- https://en.wikipedia.org/wiki/Sidecar_(company)
- https://eu.detroitnews.com/story/business/autos/general-motors/2016/01/19/gm-buys-assets-ride-hailing-company-sidecar/78999136/
- https://sunilpaul.medium.com/why-we-sold-to-gm-83a29058af5a
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Transportation
- Ride Hailing
- Mobility
- Automotive
- Defunct
tags_raw:
- Company
- Transportation
- Ridesharing
- Mobility
- Automotive
- Defunct
apis: []
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
common:
- type: DomainSecurity
url: security/sidecar-domain-security.yml
x-enrichment:
date: '2026-07-21'
status: minimal
artifacts_added: 1
pass: local-v1
x-tags-removed:
- News
- Content Platform
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