Curve

Curve is a London-based fintech, founded in 2015 by Shachar Bialick, that consolidates multiple debit and credit cards into a single smart card and mobile wallet. Its "over-the-top" banking platform lets customers spend from any linked Mastercard or Visa card, switch the funding source of a past purchase up to 120 days later with "Go Back in Time", avoid foreign-exchange fees, earn cashback, and pay in instalments with Curve Flex. Premium tiers (Curve Pay X / Pro / Pro+) add insurance, lounge access, and richer rewards. Curve is backed by Seedcamp and Speedinvest among others. Curve does not publish a public developer API — it acts as an open-banking consumer to aggregate customer account balances rather than exposing a provider API.

Curve is profiled on the APIs.io network. Tagged areas include Company, Fintech, Payments, Digital Wallet, and Cards.

Curve’s developer surface includes support, engineering blog, pricing, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

11.1/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyFintechPaymentsDigital WalletCardsOpen BankingFinancial-Services

Kin Score

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

Composite quality — 11.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 3.6 / 17

Operational Transparency 1.7 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 3.3 / 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 Payments 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/curve: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: curve
name: Curve
description: Curve is a London-based fintech, founded in 2015 by Shachar Bialick, that consolidates multiple debit and credit
  cards into a single smart card and mobile wallet. Its "over-the-top" banking platform lets customers spend from any linked
  Mastercard or Visa card, switch the funding source of a past purchase up to 120 days later with "Go Back in Time", avoid
  foreign-exchange fees, earn cashback, and pay in instalments with Curve Flex. Premium tiers (Curve Pay X / Pro / Pro+) add
  insurance, lounge access, and richer rewards. Curve is backed by Seedcamp and Speedinvest among others. Curve does not publish
  a public developer API — it acts as an open-banking consumer to aggregate customer account balances rather than exposing
  a provider API.
url: https://raw.githubusercontent.com/api-evangelist/curve/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- seedcamp
- speedinvest
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://cdn.buttercms.com/OZb0mcqMQz6dq1j13OYV
tags:
- Company
- Fintech
- Payments
- Digital Wallet
- Cards
- Open Banking
- Financial-Services
tags_raw:
- Company
- Fintech
- Payments
- Digital Wallet
- Cards
- Open Banking
- Financial Services
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.curve.com
- type: Support
  name: Curve Help Centre
  url: https://help.curve.com/
- type: StatusPage
  name: Curve Status
  url: https://status.curve.com/
- type: Blog
  url: https://www.curve.com/blog/
- type: Pricing
  url: https://www.curve.com/pricing/
- type: TermsOfService
  url: https://www.curve.com/legal/
- type: PrivacyPolicy
  url: https://www.curve.com/legal/privacy/
- type: DomainSecurity
  url: security/curve-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence