Submittable

Submittable is a submission management, grants, and applications platform used by foundations, nonprofits, corporations, and governments to collect, review, and manage forms, applications, submissions, and awards. Its public REST API (v4, base https://submittable-api.submittable.com) provides read-and-write, programmatic access to account data - submissions and their form-field entries, projects and forms, submitters (users), labels, review team members and assignments, funds and payment distributions, and message attachments. The API uses HTTP Basic Authentication (an account access token sent as the password) and is throttled at roughly 10 transactions per second and 10,000 transactions per hour. API access is enabled per account under More > Integrations > API Access, and Submittable pricing is quote-based (bundled Grant/Application Management and Corporate Social Responsibility products, plus Enterprise) via contact-sales.

Submittable publishes 10 APIs on the APIs.io network, including Assignments API, Entries API, Funds API, and 7 more. Tagged areas include Submission Management, Grants Management, Application, Forms, and Non-Profit.

Submittable’s developer surface includes authentication, documentation, pricing, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.5/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessPaidSelf serve

1 APIs

Submission ManagementGrants Management Application Forms Non-Profit Corporate Social Responsibility Workflows

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 40.5/100 · developing

Contract Quality 12.7 / 23

Developer Ergonomics 5.4 / 18

Access Clarity 10.4 / 18

Operational Transparency 2.5 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/submittable: 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 10

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

Submittable Assignments API

Routing of submissions to reviewers.

Submittable Entries API

Form-field responses captured on submissions.

Submittable Funds API

Budgets and grant distributions.

Submittable Labels API

Tags used to categorize submissions.

Submittable Messaging API

Message attachments.

Submittable Payments API

Payment records.

Submittable Projects API

The forms/programs people apply through.

Submittable Submissions API

Applications and entries sent to your projects.

Submittable Teams API

Organization team members and reviewers.

Submittable Users API

Submitters - the people who send submissions.

Scroll for all 10

Open Collections 12

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Submittable Assignments API

OPEN COLLECTION

Submittable Assignments Entries API

OPEN COLLECTION

Submittable Assignments Funds API

OPEN COLLECTION

Submittable Assignments Labels API

OPEN COLLECTION

Submittable Assignments Messaging API

OPEN COLLECTION

Submittable Assignments Payments API

OPEN COLLECTION

Submittable Assignments Projects API

OPEN COLLECTION

Submittable Assignments Submissions API

OPEN COLLECTION

Submittable Assignments Teams API

OPEN COLLECTION

Submittable Assignments Users API

OPEN COLLECTION

Submittable API (v4)

OPEN COLLECTION

Scroll for all 12

Pricing Plans 1

Published pricing tiers and plan structures.

Submittable Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Submittable Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Submittable Finops

FINOPS

Security Posture 3

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

Submittable Authentication

http · 1 scheme

SECURITY

Submittable Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Submittable Trust Center

SOC 2, HIPAA, GDPR

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Submittable Agentic Access

19 operations · 5 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

SupportDocumentation

SupportDocumentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Pricing

Pricing

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: submittable
url: https://raw.githubusercontent.com/api-evangelist/submittable/refs/heads/main/apis.yml
name: Submittable
kind: company
description: Submittable is a submission management, grants, and applications platform used by foundations, nonprofits, corporations,
  and governments to collect, review, and manage forms, applications, submissions, and awards. Its public REST API (v4, base
  https://submittable-api.submittable.com) provides read-and-write, programmatic access to account data - submissions and
  their form-field entries, projects and forms, submitters (users), labels, review team members and assignments, funds and
  payment distributions, and message attachments. The API uses HTTP Basic Authentication (an account access token sent as
  the password) and is throttled at roughly 10 transactions per second and 10,000 transactions per hour. API access is enabled
  per account under More > Integrations > API Access, and Submittable pricing is quote-based (bundled Grant/Application Management
  and Corporate Social Responsibility products, plus Enterprise) via contact-sales.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/submittable.png
tags:
- Submission Management
- Grants Management
- Application
- Forms
- Non-Profit
- Corporate Social Responsibility
- Workflows
tags_raw:
- Submission Management
- Grants Management
- Applications
- Forms
- Nonprofit
- Corporate Social Responsibility
- Workflow
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.23'
apis:
- aid: submittable:submittable-assignments-api
  name: Submittable Assignments API
  description: Routing of submissions to reviewers.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Assignments
  properties:
  - type: OpenAPI
    url: openapi/submittable-assignments-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-entries-api
  name: Submittable Entries API
  description: Form-field responses captured on submissions.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Entries
  properties:
  - type: OpenAPI
    url: openapi/submittable-entries-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-funds-api
  name: Submittable Funds API
  description: Budgets and grant distributions.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Funds
  properties:
  - type: OpenAPI
    url: openapi/submittable-funds-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-labels-api
  name: Submittable Labels API
  description: Tags used to categorize submissions.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Labels
  properties:
  - type: OpenAPI
    url: openapi/submittable-labels-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-messaging-api
  name: Submittable Messaging API
  description: Message attachments.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Messaging
  properties:
  - type: OpenAPI
    url: openapi/submittable-messaging-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-payments-api
  name: Submittable Payments API
  description: Payment records.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/submittable-payments-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-projects-api
  name: Submittable Projects API
  description: The forms/programs people apply through.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/submittable-projects-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-submissions-api
  name: Submittable Submissions API
  description: Applications and entries sent to your projects.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Submissions
  properties:
  - type: OpenAPI
    url: openapi/submittable-submissions-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-teams-api
  name: Submittable Teams API
  description: Organization team members and reviewers.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - Team
  tags_raw:
  - Teams
  properties:
  - type: OpenAPI
    url: openapi/submittable-teams-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
- aid: submittable:submittable-users-api
  name: Submittable Users API
  description: Submitters - the people who send submissions.
  humanURL: https://submittable-api.submittable.com/docs/v4/index.html
  baseURL: https://submittable-api.submittable.com/v4
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/submittable-users-api-openapi.yml
  - type: Documentation
    url: https://submittable.help/en/articles/905022-does-submittable-have-an-api
  - type: APIReference
    url: https://submittable-api.submittable.com/docs/v4/index.html
  - type: PostmanCollection
    url: collections/submittable.postman_collection.json
  - type: OpenCollection
    url: collections/submittable.opencollection.json
  - type: Documentation
    url: https://submittable.help/en/articles/8563401-api-version-reference
common:
- type: AgenticAccess
  url: agentic-access/submittable-agentic-access.yml
- type: TrustCenter
  url: security/submittable-trust-center.yml
- type: DomainSecurity
  url: security/submittable-domain-security.yml
- type: Authentication
  url: authentication/submittable-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/submittable
- type: Website
  url: https://www.submittable.com
- type: Documentation
  url: https://submittable-api.submittable.com/docs/v4/index.html
- type: SupportDocumentation
  url: https://submittable.help/en/collections/1728753-integrations-api
- type: Plans
  url: plans/submittable-plans-pricing.yml
- type: RateLimits
  url: rate-limits/submittable-rate-limits.yml
- type: FinOps
  url: finops/submittable-finops.yml
- type: Pricing
  url: https://www.submittable.com/pricing/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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