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 API contracts indexed 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.

The Submittable catalog on APIs.io includes 1 Spectral governance ruleset.

Submittable’s developer surface includes engineering blog, authentication, documentation, pricing, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.7/100 thin ▬ flat Agent 20/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 published contract

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

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 31.7/100 · thin

Contract Quality 9.5 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 3.8 / 15

Operational Transparency 0.5 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 1.6 / 15

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 25.5 — up to +14.9 composite points Ask about this →
Developer Ergonomics scores 32.1 — up to +13.6 composite points Ask about this →
Operational Transparency scores 4.8 — up to +12.4 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/submittable/apis.yml: open an issue on github.com/api-evangelist/submittable 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
Nonprofit and Fundraising	builds-on	29.3	-	1
Surveys, Market Research and Experience Management	builds-on	29.3	-	1

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.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 11

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

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 11

Submittable API pricing

Not yet checked against Submittable's own pricing page. Compiled by API Evangelist on 2026-07-05 from www.submittable.com/pricing/; confirm before you rely on a figure.

Plan	Price
Grant and Application Management quote	—
Corporate Social Responsibility (CSR) quote	—
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Per-Second Transactions: 10 per second transactions
Per-Hour Transactions: 10000 per hour transactions

Compiled by API Evangelist, not yet checked against Submittable's documentation. Rate-limit details →

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

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

Submittable

4 quoted statements, read from Submittable's own page on 2026-11-10.

COMPLIANCE

FinOps 1

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

Submittable Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Submittable API Rules

61 rules · 59 error-severity 1 warn-severity 1 info-severity

SPECTRAL

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 (API Evangelist recommendations) 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 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Other 1

Properties that don't map to a standard resource type

Attestations

Attestations

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: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  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: '2026-10-06'
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:
  - Fund
  tags_raw:
  - 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:
- url: https://www.submittable.com/blog
  type: Blog
- 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/
- type: Attestations
  url: compliance/submittable-compliance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Submittable API — frequently asked questions

Does Submittable have an API?

Yes. APIs.io lists 10 APIs from Submittable, including Submittable Assignments API, Submittable Entries API and Submittable Funds API, and 7 more.

Is there an OpenAPI specification for the Submittable API?

Yes. APIs.io indexes 10 OpenAPI specifications for Submittable, each linked for download from this page.

How do I authenticate with the Submittable API?

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

How much does the Submittable API cost?

APIs.io lists 3 pricing plans for Submittable, with each plan's price, limits and inclusions under Pricing on this page.

Is the Submittable API ready for AI agents?

Submittable has a Kin Score of 31.7 out of 100 (thin) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-13.

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