People's United Financial

Defunct U.S. regional bank holding company, headquartered in Bridgeport, Connecticut. Acquired by M&T Bank Corporation in an all-stock deal valued at approximately $7.6 billion. The acquisition was announced February 22, 2021 and closed April 2, 2022. People's United operated roughly 403 branches at close and was fully integrated into M&T Bank by Q3 2022. The People's United brand has been retired; peoples.com now 301-redirects to mtb.com. No public developer program, OpenAPI definitions, SDKs, GitHub organization, or documented APIs existed at any point during its operating history.

People’s United Financial is profiled on the APIs.io network. Tagged areas include Banking, Regional Bank, Defunct, Acquired, and Financial-Services.

🌐 Visit website 📡 Source on GitHub

1.1/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

Banking Regional Bank Defunct Acquired Financial-Services

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 1.1/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 0.0 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance 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.

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/. This rating is computed from github.com/api-evangelist/peoples-united-financial: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Other 3

Properties that don't map to a standard resource type

Acquired By

Acquired By

Acquisition Announcement

Acquisition Announcement

Wikipedia

Wikipedia

Source (apis.yml)

aid: peoples-united-financial
name: People's United Financial
description: 'Defunct U.S. regional bank holding company, headquartered in Bridgeport,

  Connecticut. Acquired by M&T Bank Corporation in an all-stock deal valued at

  approximately $7.6 billion. The acquisition was announced February 22, 2021

  and closed April 2, 2022. People''s United operated roughly 403 branches at

  close and was fully integrated into M&T Bank by Q3 2022. The People''s United

  brand has been retired; peoples.com now 301-redirects to mtb.com. No public

  developer program, OpenAPI definitions, SDKs, GitHub organization, or

  documented APIs existed at any point during its operating history.'
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/peoples-united-financial.png
url: https://www.mtb.com/
created: 2026-05-22
modified: 2026-05-23
specificationVersion: '0.23'
tags:
- Banking
- Regional Bank
- Defunct
- Acquired
- Financial-Services
tags_raw:
- Banking
- Regional Bank
- Defunct
- Acquired
- Financial Services
apis: []
common:
- type: Acquired By
  url: https://www.mtb.com/
- type: Acquisition Announcement
  url: https://newsroom.mtb.com/2021-02-22-MT-Bank-Corporation-and-Peoples-United-Financial-Inc-Announce-Agreement-to-Combine
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/People%27s_United_Financial
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
x-status: defunct
x-acquired-by: mt-bank
x-acquisition-close-date: 2022-04-02
x-acquisition-value-usd: 7600000000
x-acquisition-type: all-stock
x-redirect-url: https://www.mtb.com/
x-api-count: 0
x-fortune-1000-rank: 916