Institute of Museum and Library Services

The Institute of Museum and Library Services (IMLS) is an independent federal agency that advances, supports, and empowers America's museums, libraries, and related organizations through grantmaking, research, and policy development. IMLS provides data access to grant and museum information through its APIs.

Institute of Museum and Library Services publishes 1 API on the APIs.io network. Tagged areas include Federal-Government, Grants, Libraries, and Museums.

Institute of Museum and Library Services’ developer surface includes support, engineering blog, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

10.3/100 minimal ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs

Federal-Government Grants Libraries Museums

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 10.3/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 2.7 / 17

Operational Transparency 1.2 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.7 / 15

Agent readiness — 3/100 · 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 7 / 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

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/.

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 github.com/api-evangelist/institute-of-museum-and-library-services: open an issue to ask a question, or submit a pull request to add artifacts. 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.

IMLS Data Catalog API

The IMLS Data Catalog provides public access to IMLS grants data and museum information through an API, enabling researchers and developers to access grant information, museum l...

Pricing Plans 1

Published pricing tiers and plan structures.

Institute Of Museum And Library Services Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Institute Of Museum And Library Services Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Institute Of Museum And Library Services Finops

FINOPS

Security Posture 1

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

Institute Of Museum And Library Services Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: institute-of-museum-and-library-services
name: Institute of Museum and Library Services
description: The Institute of Museum and Library Services (IMLS) is an independent federal agency that advances, supports,
  and empowers America's museums, libraries, and related organizations through grantmaking, research, and policy development.
  IMLS provides data access to grant and museum information through its APIs.
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/institute-of-museum-and-library-services.png
tags:
- Federal-Government
- Grants
- Libraries
- Museums
tags_raw:
- Federal Government
- Grants
- Libraries
- Museums
url: https://raw.githubusercontent.com/api-evangelist/institute-of-museum-and-library-services/refs/heads/main/apis.yml
created: '2024-12-03'
modified: '2026-04-28'
specificationVersion: '0.23'
apis:
- aid: institute-of-museum-and-library-services:imls-data-catalog
  name: IMLS Data Catalog API
  description: The IMLS Data Catalog provides public access to IMLS grants data and museum information through an API, enabling
    researchers and developers to access grant information, museum locations, and program data.
  humanURL: https://www.imls.gov/research-evaluation/data-collection/museum-data-files
  tags:
  - Federal-Government
  - Grants
  - Libraries
  - Museums
  tags_raw:
  - Federal Government
  - Grants
  - Libraries
  - Museums
  properties:
  - type: Documentation
    url: https://www.imls.gov/research-evaluation/data-collection/museum-data-files
common:
- type: DomainSecurity
  url: security/institute-of-museum-and-library-services-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/imls
- type: LinkedIn
  url: https://www.linkedin.com/company/us-imls
- type: Website
  url: https://www.imls.gov/
- type: Support
  url: https://www.imls.gov/contact
- url: https://www.imls.gov/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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