HeyForm

HeyForm is an open-source conversational form builder that enables anyone to create engaging forms, surveys, quizzes, and polls without coding. It provides a REST API and webhook integrations for creating and managing forms, collecting responses, configuring conditional logic, and embedding forms in any web application. With 30+ integrations including Zapier, Slack, Google Sheets, Airtable, HubSpot, and Stripe, HeyForm suits small businesses and developers who want full data ownership. Licensed under AGPL-3.0, it can be self-hosted or used via the managed cloud service.

HeyForm publishes 7 API contracts indexed on the APIs.io network, including Auth API, Config API, Forms API, and 4 more. Tagged areas include Forms, Surveys, Quizzes, Polls, and Conversational Forms.

The HeyForm catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

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

🌐 Visit website 📡 Profile data on GitHub

33.5/100 thin ▬ flat Agent 28/100 agent aware Front door AI 3/6 light Heartbeat 68/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Forms Surveys Quizzes PollsConversational FormsOpen Source Webhook No-Code Form Builder Self-Hosted

Kin Score

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

Composite quality — 33.5/100 · thin

Contract Quality 9.7 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 2.8 / 15

Operational Transparency 3.6 / 10

Contract Governance 0.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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
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
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 18.4 — up to +16.3 composite points
Developer Ergonomics scores 23.8 — up to +15.2 composite points
Contract Quality scores 51.8 — up to +12.1 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/heyform/apis.yml: open an issue on github.com/api-evangelist/heyform 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
Surveys, Market Research and Experience Management	long-tail	2.5 (thin)	-	-

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 7

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

HeyForm Auth API

Authentication and social login (OAuth)

HeyForm Config API

Runtime configuration

HeyForm Forms API

Form rendering (public endpoint)

HeyForm Images API

Image proxy and resizing

HeyForm Submissions API

Export form submission data

HeyForm Upload API

File upload

HeyForm Graph QL API

Primary data API (GraphQL over HTTP)

Scroll for all 7

Open Collections 7

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

HeyForm Auth API

OPEN COLLECTION

HeyForm Auth Config API

OPEN COLLECTION

HeyForm Auth Forms API

OPEN COLLECTION

HeyForm Auth GraphQL API

OPEN COLLECTION

HeyForm Auth Images API

OPEN COLLECTION

HeyForm Auth Submissions API

OPEN COLLECTION

HeyForm Auth Upload API

OPEN COLLECTION

Scroll for all 7

HeyForm API pricing

Not yet checked against HeyForm's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free	Free
Basic	$15
Premium	$24
Business	$40
Enterprise	—
Self-Hosted (Open Source)	Free

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Heyform Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Heyform Rate Limits

10 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

HeyForm

SLA

FinOps 1

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

Heyform Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Heyform Context

16 classes · 55 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

HeyForm — jsonschema rules

6 rules · 4 warnings 2 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

HeyForm Form

16 properties

JSON SCHEMA

HeyForm Submission

15 properties

JSON SCHEMA

Examples 2

Example request and response payloads for these APIs.

Heyform Graphql Complete Submission Example

3 fields

EXAMPLE

Heyform Webhook Payload Example

7 fields

EXAMPLE

Security Posture 2

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

Heyform Authentication

apiKey · 1 scheme

SECURITY

Heyform Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Heyform Agentic Access

9 operations · 3 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: heyform
name: HeyForm
description: HeyForm is an open-source conversational form builder that enables anyone to create engaging forms, surveys,
  quizzes, and polls without coding. It provides a REST API and webhook integrations for creating and managing forms, collecting
  responses, configuring conditional logic, and embedding forms in any web application. With 30+ integrations including Zapier,
  Slack, Google Sheets, Airtable, HubSpot, and Stripe, HeyForm suits small businesses and developers who want full data ownership.
  Licensed under AGPL-3.0, it can be self-hosted or used via the managed cloud service.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/heyform.png https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/heyform/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Forms
- Surveys
- Quizzes
- Polls
- Conversational Forms
- Open Source
- Webhook
- No-Code
- Form Builder
- Self-Hosted
tags_raw:
- Forms
- Surveys
- Quizzes
- Polls
- Conversational Forms
- Open Source
- Webhooks
- No-Code
- Form Builder
- Self-Hosted
- Open-Source
apis:
- aid: heyform:heyform-auth-api
  name: HeyForm Auth API
  description: Authentication and social login (OAuth)
  humanURL: https://docs.heyform.net
  baseURL: https://api.heyform.net
  tags:
  - Authentication
  tags_raw:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/heyform-auth-api-openapi.yml
  - type: Documentation
    url: https://docs.heyform.net
  - type: Webhooks
    url: https://docs.heyform.net/integrations/webhook
- aid: heyform:heyform-config-api
  name: HeyForm Config API
  description: Runtime configuration
  humanURL: https://docs.heyform.net
  baseURL: https://api.heyform.net
  tags:
  - Config
  properties:
  - type: OpenAPI
    url: openapi/heyform-config-api-openapi.yml
  - type: Documentation
    url: https://docs.heyform.net
  - type: Webhooks
    url: https://docs.heyform.net/integrations/webhook
- aid: heyform:heyform-forms-api
  name: HeyForm Forms API
  description: Form rendering (public endpoint)
  humanURL: https://docs.heyform.net
  baseURL: https://api.heyform.net
  tags:
  - Forms
  properties:
  - type: OpenAPI
    url: openapi/heyform-forms-api-openapi.yml
  - type: Documentation
    url: https://docs.heyform.net
  - type: Webhooks
    url: https://docs.heyform.net/integrations/webhook
- aid: heyform:heyform-images-api
  name: HeyForm Images API
  description: Image proxy and resizing
  humanURL: https://docs.heyform.net
  baseURL: https://api.heyform.net
  tags:
  - Image
  tags_raw:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/heyform-images-api-openapi.yml
  - type: Documentation
    url: https://docs.heyform.net
  - type: Webhooks
    url: https://docs.heyform.net/integrations/webhook
- aid: heyform:heyform-submissions-api
  name: HeyForm Submissions API
  description: Export form submission data
  humanURL: https://docs.heyform.net
  baseURL: https://api.heyform.net
  tags:
  - Submissions
  properties:
  - type: OpenAPI
    url: openapi/heyform-submissions-api-openapi.yml
  - type: Documentation
    url: https://docs.heyform.net
  - type: Webhooks
    url: https://docs.heyform.net/integrations/webhook
- aid: heyform:heyform-upload-api
  name: HeyForm Upload API
  description: File upload
  humanURL: https://docs.heyform.net
  baseURL: https://api.heyform.net
  tags:
  - Upload
  properties:
  - type: OpenAPI
    url: openapi/heyform-upload-api-openapi.yml
  - type: Documentation
    url: https://docs.heyform.net
  - type: Webhooks
    url: https://docs.heyform.net/integrations/webhook
- aid: heyform:heyform-graph-ql-api
  name: HeyForm Graph QL API
  description: Primary data API (GraphQL over HTTP)
  humanURL: https://docs.heyform.net
  baseURL: https://api.heyform.net
  tags:
  - GraphQL
  tags_raw:
  - Graph QL
  properties:
  - type: OpenAPI
    url: openapi/heyform-graph-ql-api-openapi.yml
  - type: Documentation
    url: https://docs.heyform.net
  - type: Webhooks
    url: https://docs.heyform.net/integrations/webhook
common:
- type: AgenticAccess
  url: agentic-access/heyform-agentic-access.yml
- type: DomainSecurity
  url: security/heyform-domain-security.yml
- type: Authentication
  url: authentication/heyform-authentication.yml
- type: Website
  url: https://heyform.net
- type: Documentation
  url: https://docs.heyform.net
- type: GitHubOrg
  url: https://github.com/heyform
- type: LinkedIn
  url: https://www.linkedin.com/company/heyform
- type: Blog
  url: https://heyform.net/blog
- type: Pricing
  url: https://heyform.net/pricing
- type: StatusPage
  url: https://heyform.net
- type: X
  url: https://x.com/heyform_net
- type: Plans
  url: plans/heyform-plans-pricing.yml
- type: RateLimits
  url: rate-limits/heyform-rate-limits.yml
- type: FinOps
  url: finops/heyform-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

HeyForm API — frequently asked questions

Does HeyForm have an API?

Yes. APIs.io lists 7 APIs from HeyForm, including HeyForm Auth API, HeyForm Config API and HeyForm Forms API, and 4 more.

Is there an OpenAPI specification for the HeyForm API?

Yes. APIs.io indexes 7 OpenAPI specifications for HeyForm, each linked for download from this page.

How do I authenticate with the HeyForm API?

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

How much does the HeyForm API cost?

APIs.io lists 6 pricing plans for HeyForm, with each plan's price, limits and inclusions under Pricing on this page.

Is the HeyForm API ready for AI agents?

HeyForm has a Kin Score of 33.5 out of 100 (thin) and an Agent Readiness score of 28.4 (agent-aware), scored by API Evangelist on 2026-11-06.

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