Wallester

Wallester provides a modern card issuing platform that enables businesses to embed financial services directly into their products. Through a robust set of APIs, Wallester offers virtual and physical card issuance, transaction processing, compliance, and risk management tools. Their solution targets fintechs, marketplaces, and SaaS platforms seeking to integrate payment capabilities without building banking infrastructure from scratch. With global coverage and customizable workflows, Wallester aims to simplify the complexities of card issuance and payments for developers and enterprises alike.

Wallester is listed with 1 API on the APIs.io network. Tagged areas include Company, Payments, Card Issuing, Fintech, and API Platform.

Wallester’s developer surface includes engineering blog, pricing, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

12.0/100 emerging ▼ -6.1 Agent 0/100 human only Front door AI 2/6 trace Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Company Payments Card Issuing Fintech API Platform

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 12.0/100 · emerging

Contract Quality 1.8 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 3.8 / 17

Operational Transparency 0.9 / 11

Contract Governance 0.0 / 10

Discoverability 4.6 / 9

Regulatory Posture 1.3 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 8.6 — up to +22.9 composite points
Developer Ergonomics scores 2.4 — up to +19.5 composite points
Access Clarity scores 22.4 — up to +15.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/wallester/apis.yml: open an issue on github.com/api-evangelist/wallester to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
EU/EEA Payment and E-Money Institutions (PSD2 passports)	regulated	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Wallester API

Wallester provides card issuing and payment APIs as described on their pricing page.

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Wallester Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 3

The organization behind the API

Blog

Blog

Newsroom

Newsroom

Website

Website

Source (apis.yml)

aid: wallester
name: Wallester
description: Wallester provides a modern card issuing platform that enables businesses to embed financial services directly
  into their products. Through a robust set of APIs, Wallester offers virtual and physical card issuance, transaction processing,
  compliance, and risk management tools. Their solution targets fintechs, marketplaces, and SaaS platforms seeking to integrate
  payment capabilities without building banking infrastructure from scratch. With global coverage and customizable workflows,
  Wallester aims to simplify the complexities of card issuance and payments for developers and enterprises alike.
url: https://raw.githubusercontent.com/api-evangelist/wallester/refs/heads/main/apis.yml
x-type: company
x-source: harvest:payments
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-20 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-09-20'
modified: '2026-10-06'
tags:
- Company
- Payments
- Card Issuing
- Fintech
- API Platform
apis:
- name: Wallester API
  description: Wallester provides card issuing and payment APIs as described on their pricing page.
  humanURL: https://wallester.com/business/pricing
  baseURL: null
  openapi:
    url: null
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://wallester.com/blog
  type: Blog
- type: TermsOfService
  url: https://wallester.com/legal-notice
- type: StatusPage
  url: https://status.wallester.com/
- type: PrivacyPolicy
  url: https://wallester.com/privacy
- type: Pricing
  url: https://wallester.com/business/pricing
- type: Newsroom
  url: https://wallester.com/media
- type: Login
  url: https://wallester.com/sign-in
- type: LLMsTxt
  url: llms/wallester-llms.txt
- type: DomainSecurity
  url: security/wallester-domain-security.yml
- type: Website
  url: https://wallester.com/
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Pricing page loads a heavy JavaScript app with no direct OpenAPI spec discovered.
  evidence:
  - url: https://api.wallester.com/openapi.json
    status: 404
  checked: 2026-09-20
x-enrichment:
  date: '2026-09-20'
  status: enriched
  artifacts_added: 4
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local

Wallester API — frequently asked questions

Does Wallester have an API?

Yes. APIs.io lists 1 API from Wallester, including Wallester API.

Is the Wallester API ready for AI agents?

Wallester has a Kin Score of 12.0 out of 100 (emerging) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-06.

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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