Singpass

Singpass is Singapore’s national digital identity platform that enables residents to securely access government services, sign documents, and share verified personal data with businesses. It provides authentication, MyInfo data pre-fill, and digital signing capabilities, supporting over 2,700 services across more than 800 agencies, and aims to simplify and secure everyday transactions for citizens and residents.

Singpass is listed with 1 API on the APIs.io network. Tagged areas include Company, Identity, Authentication, Government, and Singapore.

Singpass’ developer surface includes getting-started guide, authentication, documentation, API reference, support, engineering blog, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.3/100 emerging Agent 6/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

Company Identity Authentication Government Singapore

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 24.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 9.7 / 17

Access Clarity 3.6 / 17

Operational Transparency 1.7 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.9 / 15

Agent readiness — 6/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 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

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Contract Governance scores 0.0 — up to +12.0 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/singpass/apis.yml: open an issue on github.com/api-evangelist/singpass 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 →

APIs 1

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

Singpass API

Integration APIs for Singpass Login and MyInfo services as documented in the Singpass Developer Portal.

Security Posture 2

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

Singpass Authentication

1 scheme

SECURITY

Singpass Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

Security

Security

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: singpass
name: Singpass
image: https://www.singpass.gov.sg/main/images/common/400 x 400.webp
description: Singpass is Singapore’s national digital identity platform that enables residents to securely access government
  services, sign documents, and share verified personal data with businesses. It provides authentication, MyInfo data pre-fill,
  and digital signing capabilities, supporting over 2,700 services across more than 800 agencies, and aims to simplify and
  secure everyday transactions for citizens and residents.
url: https://raw.githubusercontent.com/api-evangelist/singpass/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-27 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-27'
modified: '2026-10-27'
tags:
- Company
- Identity
- Authentication
- Government
- Singapore
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: GettingStarted
  url: https://docs.developer.singpass.gov.sg/docs/getting-started/readme
- type: Authentication
  url: authentication/singpass-authentication.yml
- type: LLMsTxt
  url: llms/singpass-llms.txt
- type: WellKnown
  url: well-known/singpass-well-known.yml
- type: Hosts
  url: hosts/singpass-hosts.yml
- type: Vendors
  url: vendors/singpass-vendors.yml
- type: Security
  url: https://www.singpass.gov.sg/main/security/
- type: GitHubOrganization
  url: https://github.com/singpass
- type: DomainSecurity
  url: security/singpass-domain-security.yml
- type: Website
  url: https://singpass.gov.sg/
- type: Documentation
  url: https://developer.singpass.gov.sg
- type: DeveloperPortal
  url: https://developer.singpass.gov.sg
- type: APIReference
  url: https://developer.singpass.gov.sg/docs
- type: Support
  url: https://partnersupport.singpass.gov.sg
- type: Blog
  url: https://www.singpass.gov.sg/main/newsroom/
- type: TermsOfService
  url: https://portal.singpass.gov.sg/home/ui/terms-of-use
- type: PrivacyPolicy
  url: https://portal.singpass.gov.sg/home/ui/privacy-statement
apis:
- name: Singpass API
  description: Integration APIs for Singpass Login and MyInfo services as documented in the Singpass Developer Portal.
  humanURL: https://developer.singpass.gov.sg/docs/getting-started/readme.md
  baseURL: null
  aid: singpass:singpass-api
x-submission-probe: 301 (-> https://www.singpass.gov.sg/) 2026-10-26
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The Singpass developer portal provides documentation only in markdown pages without any OpenAPI, GraphQL, AsyncAPI,
    gRPC, or WSDL specifications.
  evidence:
  - url: https://docs.developer.singpass.gov.sg/openapi.json
    status: 200
  checked: '2026-10-27'
x-enrichment:
  date: '2026-10-27'
  status: enriched
  artifacts_added: 12
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Singpass API — frequently asked questions

Does Singpass have an API?

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

How do I authenticate with the Singpass API?

Singpass uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Singpass Authentication.

Is the Singpass API ready for AI agents?

Singpass has a Kin Score of 24.3 out of 100 (emerging) and an Agent Readiness score of 5.6 (agent-aware), scored by API Evangelist on 2026-10-31.

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find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
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.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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