generated: '2026-07-20'
method: searched
source: https://github.com/concord
status: discontinued
summary: >-
  Concord Systems (Brooklyn, NY; founded December 2014 by Alexander Gallego and
  Emilio Del Tesoro) built a high-performance distributed stream processing
  framework in C++ on Apache Mesos. It was acquired by Akamai Technologies in
  September 2016 and the product was folded into Akamai's IoT edge data platform.
  The concord.io domain no longer belongs to the company (parked / listed for sale
  via GoDaddy) and the developer documentation at concord.io/docs is gone. The only
  surviving first-party developer surface is the github.com/concord organization
  and the client libraries still published on PyPI, RubyGems and pkg.go.dev.
acquisition:
  acquirer: Akamai Technologies
  announced: '2016-09-28'
  closed: '2016-09-23'
  terms: all-cash
  sources:
    - https://www.bloomberg.com/profile/company/1445799D:US
    - https://www.akamai.com/newsroom/press-release/akamai-acquires-data-processing-provider-concord-systems
  note: >-
    The Akamai press-release URL now redirects to the newsroom index (no longer
    served); the acquisition is corroborated by the Bloomberg company profile.
versioning:
  scheme: semver
  current: 0.3.6
  evidence: concord-py 0.3.6 (2016-07-21), concord-ruby 0.3.6 (2016-03-18)
deprecation:
  policy_url: null
  sunset_header: false
  note: >-
    No published deprecation policy. The whole product was discontinued on
    acquisition rather than formally deprecated.
sla: null
status_page: null
last_release: '2016-07-21'
api_surface:
  type: thrift-rpc
  note: >-
    Concord exposed a Thrift-based computation/operator driver interface consumed
    by the per-language client libraries, not an HTTP/REST API. There is no OpenAPI,
    no public baseURL, and no event/webhook surface to harvest — which is why the
    openapi/, asyncapi/, errors/, scopes/, authentication/, conventions/,
    data-model/ and skills/ artifacts are absent rather than empty.
probes_skipped:
  - artifact: security/concord-systems-domain-security.yml
    reason: >-
      concord.io is no longer controlled by Concord Systems (GoDaddy parked page);
      probing it would record the parking host's TLS/DNS posture, not the company's.
  - artifact: well-known/
    reason: no company-controlled host remains to probe