FormDesigner

FormDesigner offers an online form builder that lets users create forms, quizzes, surveys, booking forms and calculators with drag‑and‑drop fields, conditional logic, payment steps and integrations. The service is designed for websites and can be used by teams or solo creators to publish forms via direct links, embedded pages or pop‑ups without writing code. It also provides a REST API and native Model Context Protocol for developers to manage forms programmatically.

FormDesigner is listed with 1 API on the APIs.io network. Tagged areas include Form Builder, Online Forms, Quizzes, Calculators, and Payments.

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

FormDesigner’s developer surface includes support, engineering blog, getting-started guide, and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

25.5/100 emerging Agent 24/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

1 API

Form Builder Online Forms Quizzes Calculators Payments Integration

Kin Score

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

Composite quality — 25.5/100 · emerging

Contract Quality 5.6 / 21

Developer Ergonomics 4.9 / 17

Access Clarity 4.3 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.9 / 9

Regulatory Posture 1.5 / 15

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 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 6 / 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 Payments 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):

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 →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author 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 →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 26.3 — up to +18.4 composite points Ask about this →
Access Clarity scores 25.5 — up to +14.9 composite points Ask about this →
Developer Ergonomics scores 28.6 — up to +14.3 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/formdesigner-pro/apis.yml: open an issue on github.com/api-evangelist/formdesigner-pro 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.

FormDesigner API

FormDesigner API as documented publicly: 80 operations. Contract generated from the documentation by API Evangelist (2026-11-08); not the provider's own document.

FormDesigner API pricing

Prices published by FormDesigner, read 2026-11-08 from formdesigner.pro/tariffs.

Plan	Price
Free	$0.00/mo
Basic	$5.45/mo
Gold	$7.99/mo
Platinum	$10.99/mo
50 заявки	$7.50
100 заявки	$12.00
500 заявки	$50.00
1000 заявки	$80.00

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

FormDesigner Plans Pricing

8 plans

PLANS

Semantic Vocabularies 1

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

Formdesigner Pro Context

89 classes · 142 properties

JSON-LD

Spectral Rules 1

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

FormDesigner API Rules

43 rules · 37 error-severity 4 warn-severity 2 info-severity

SPECTRAL

JSON Schema 6

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

GetV1FormsIdPagesPageidItemsResponse

28 properties

JSON SCHEMA

GetV1FormsIdResponse

40 properties

JSON SCHEMA

PostV1FormsRequest

25 properties

JSON SCHEMA

PutFormsIdRequest

26 properties

JSON SCHEMA

PutV1FormsIdPagesPageidItemsItemidRequest

17 properties

JSON SCHEMA

PutV1FormsIdRequest

26 properties

JSON SCHEMA

Security Posture 1

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

FormDesigner Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

Plans

Plans

Company 3

The organization behind the API

Newsroom

Newsroom

Blog

Blog

Website

Website

Other 3

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Leadership

Leadership

Source (apis.yml)

aid: formdesigner-pro
name: FormDesigner
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://st.formdesigner.pro/images/themes/new/og_en.jpg
description: FormDesigner offers an online form builder that lets users create forms, quizzes, surveys, booking forms and
  calculators with drag‑and‑drop fields, conditional logic, payment steps and integrations. The service is designed for websites
  and can be used by teams or solo creators to publish forms via direct links, embedded pages or pop‑ups without writing code.
  It also provides a REST API and native Model Context Protocol for developers to manage forms programmatically.
url: https://artifacts.apis.io/formdesigner-pro/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-08 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-08'
modified: '2026-11-08'
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The developer portal provides HTML docs but no machine‑readable OpenAPI/AsyncAPI/GraphQL spec.
  evidence:
  - url: https://formdesigner.pro/developers
    status: 200
  checked: '2026-11-08'
tags:
- Form Builder
- Online Forms
- Quizzes
- Calculators
- Payments
- Integration
tags_raw:
- form builder
- online forms
- quizzes
- calculators
- payments
- integrations
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/formdesigner-pro-plans-pricing.yml
- type: Spectral
  url: rules/formdesigner-pro-rules.yml
- type: JSONLD
  url: json-ld/formdesigner-pro-context.jsonld
- type: Vocabulary
  url: vocabulary/formdesigner-pro-vocabulary.yml
- type: DataModel
  url: data-model/formdesigner-pro-data-model.yml
- type: Conformance
  url: conformance/formdesigner-pro-conformance.yml
- type: WellKnown
  url: well-known/formdesigner-pro-well-known.yml
- type: Hosts
  url: hosts/formdesigner-pro-hosts.yml
- type: Vendors
  url: vendors/formdesigner-pro-vendors.yml
- type: Support
  url: https://formdesigner.pro/help
- type: Newsroom
  url: https://formdesigner.pro/news
- type: Leadership
  url: https://formdesigner.pro/solutions/team
- type: DeveloperPortal
  url: https://formdesigner.pro/developers
- type: Blog
  url: https://formdesigner.pro/blog
- type: GettingStarted
  url: https://formdesigner.pro/help/mcp/oauth-setup.html
- type: DomainSecurity
  url: security/formdesigner-pro-domain-security.yml
- type: Website
  url: https://formdesigner.pro/
apis:
- aid: formdesigner-pro:formdesigner-pro-api
  name: FormDesigner API
  description: 'FormDesigner API as documented publicly: 80 operations. Contract generated from the documentation by API Evangelist
    (2026-11-08); not the provider''s own document.'
  humanURL: https://formdesigner.pro/api
  baseURL: https://api.formdesigner.pro
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/formdesigner-pro-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/formdesigner-pro-get-v1-forms-id-response-schema.json
  - type: JSONSchema
    url: json-schema/formdesigner-pro-put-forms-id-request-schema.json
  - type: JSONSchema
    url: json-schema/formdesigner-pro-put-v1-forms-id-request-schema.json
  - type: JSONSchema
    url: json-schema/formdesigner-pro-post-v1-forms-request-schema.json
  - type: JSONSchema
    url: json-schema/formdesigner-pro-get-v1-forms-id-pages-pageid-items-response-schema.json
  - type: JSONSchema
    url: json-schema/formdesigner-pro-put-v1-forms-id-pages-pageid-items-itemid-request-schema.json
x-enrichment:
  date: '2026-11-08'
  status: enriched
  artifacts_added: 22
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

FormDesigner API — frequently asked questions

Does FormDesigner have an API?

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

Is there an OpenAPI specification for the FormDesigner API?

Yes. APIs.io indexes 1 OpenAPI specification for FormDesigner, each linked for download from this page.

How much does the FormDesigner API cost?

FormDesigner publishes its prices; its Free plan is $0.00/mo as of 2026-11-08. APIs.io lists 8 pricing plans for FormDesigner, with each plan's price, limits and inclusions under Pricing on this page.

Is the FormDesigner API ready for AI agents?

FormDesigner has a Kin Score of 25.5 out of 100 (emerging) and an Agent Readiness score of 23.7 (agent-aware), scored by API Evangelist on 2026-11-13.

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