BillGuard

BillGuard was a consumer personal-finance and transaction-security company whose mobile app scanned bank and credit-card transactions for hidden fees, billing errors, grey charges, and fraud, and let users flag or dispute suspicious charges. Surfaced as a portfolio company of bessemer-venture-partners and added to the API Evangelist network for enrichment. The company was acquired by Prosper Marketplace in 2015 and folded into the Prosper Daily app; billguard.com now 301-redirects to prosper.com and no independent BillGuard developer, API, or documentation surface remains. This profile is retained as a historical portfolio lead with no live API artifacts to harvest.

BillGuard is profiled on the APIs.io network. Tagged areas include Company, Consumer, Personal Finance, Fraud Protection, and Fintech.

🌐 Visit website 📡 Source on GitHub

6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyConsumerPersonal FinanceFraud ProtectionFintech

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 6.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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

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/billguard: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Source (apis.yml)

aid: billguard
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/billguard.png
name: BillGuard
description: BillGuard was a consumer personal-finance and transaction-security company whose mobile app scanned bank and
  credit-card transactions for hidden fees, billing errors, grey charges, and fraud, and let users flag or dispute suspicious
  charges. Surfaced as a portfolio company of bessemer-venture-partners and added to the API Evangelist network for enrichment.
  The company was acquired by Prosper Marketplace in 2015 and folded into the Prosper Daily app; billguard.com now 301-redirects
  to prosper.com and no independent BillGuard developer, API, or documentation surface remains. This profile is retained as
  a historical portfolio lead with no live API artifacts to harvest.
url: https://raw.githubusercontent.com/api-evangelist/billguard/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-status-note: Acquired by Prosper Marketplace (2015); billguard.com 301-redirects to prosper.com. No live API surface.
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Consumer
- Personal Finance
- Fraud Protection
- Fintech
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence