FormBuilder

FormBuilder provides a free online form builder platform that enables users to create, customize, and publish forms quickly. It offers AI‑generated forms, over 550 templates, conditional logic, Stripe payment integration, and a free plan with no credit‑card requirement. The service targets businesses and individuals needing client inquiries, registrations, feedback, or any data collection, emphasizing ease of use and rapid deployment.

FormBuilder publishes 1 API contract indexed on the APIs.io network. Tagged areas include Company, Form Builder, Online Forms, No-Code, and Artificial Intelligence.

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

FormBuilder’s developer surface includes changelog, support, pricing, engineering blog, API reference, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.6/100 thin Agent 24/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

2 published contracts 1 Agent Skills

Company Form Builder Online Forms No-Code Artificial Intelligence

Kin Score

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

Composite quality — 37.6/100 · thin

Contract Quality 2.2 / 21

Developer Ergonomics 4.4 / 17

Access Clarity 10.8 / 17

Operational Transparency 5.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.1 / 15

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 0 / 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 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 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 5 / 5

Registration Without a Human 6 / 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 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
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 →
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 →

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 10.4 — up to +22.4 composite points Ask about this →
Developer Ergonomics scores 25.6 — up to +14.9 composite points Ask about this →
Contract Governance scores 22.0 — up to +9.4 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/formbuilder-com/apis.yml: open an issue on github.com/api-evangelist/formbuilder-com 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 →

Standards implemented 2

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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

FormBuilder API

FormBuilder public REST API for creating accounts, forms, and handling responses.

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

formbuilder-com-create-and-publish-form

AGENT SKILL

FormBuilder API pricing

Prices published by FormBuilder, read 2026-11-08 from formbuilder.com/pricing/.

Plan	Price
Free	$0
Pro	$39/month
Business	$99/month

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

FormBuilder Plans Pricing

3 plans

PLANS

Semantic Vocabularies 1

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

Formbuilder Com Context

4 classes · 20 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.

FormBuilder API Rules

52 rules · 50 error-severity 1 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

FormBuilder Openapi Overlay

0 actions · update

UNRECORDED

Security Posture 2

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

FormBuilder Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

FormBuilder Trust Center

SOC 2, HIPAA, GDPR

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Webhooks

Scroll for all 7

Access & Security 4

Authentication, authorization, and security posture

Compliance

Security

TrustCenter

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

ChangeLog

Support

StatusPage

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 3

The organization behind the API

Newsroom

Newsroom

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: formbuilder-com
name: FormBuilder
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: gated
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://formbuilder.com/images/og-default.jpg
description: FormBuilder provides a free online form builder platform that enables users to create, customize, and publish
  forms quickly. It offers AI‑generated forms, over 550 templates, conditional logic, Stripe payment integration, and a free
  plan with no credit‑card requirement. The service targets businesses and individuals needing client inquiries, registrations,
  feedback, or any data collection, emphasizing ease of use and rapid deployment.
url: https://artifacts.apis.io/formbuilder-com/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'
tags:
- Company
- Form Builder
- Online Forms
- No-Code
- Artificial Intelligence
tags_raw:
- Company
- FormBuilder
- OnlineForms
- NoCode
- AI
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/formbuilder-com-plans-pricing.yml
- type: Spectral
  url: rules/formbuilder-com-rules.yml
- type: JSONLD
  url: json-ld/formbuilder-com-context.jsonld
- type: Vocabulary
  url: vocabulary/formbuilder-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/formbuilder-com-data-model.yml
- type: ChangeLog
  url: changelog/formbuilder-com-changelog.yml
- type: Compliance
  url: https://formbuilder.com/security/
- type: ErrorCatalog
  url: errors/formbuilder-com-problem-types.yml
- type: Conformance
  url: conformance/formbuilder-com-conformance.yml
- type: LLMsTxt
  url: llms/formbuilder-com-llms.txt
- type: WellKnown
  url: well-known/formbuilder-com-well-known.yml
- type: Hosts
  url: hosts/formbuilder-com-hosts.yml
- type: Vendors
  url: vendors/formbuilder-com-vendors.yml
- type: Webhooks
  url: https://formbuilder.com/help/webhooks
- type: TermsOfService
  url: https://formbuilder.com/terms
- type: Support
  url: https://formbuilder.com/help
- type: StatusPage
  url: https://formbuilder.com/status
- type: Security
  url: https://formbuilder.com/security
- type: PrivacyPolicy
  url: https://formbuilder.com/privacy
- type: Pricing
  url: https://formbuilder.com/pricing
- type: Newsroom
  url: https://formbuilder.com/news
- type: DeveloperPortal
  url: https://formbuilder.com/developers
- type: ChangeLog
  url: https://formbuilder.com/changelog/
- type: Blog
  url: https://formbuilder.com/blog/
- type: APIReference
  url: https://formbuilder.com/developers/
- type: TrustCenter
  url: security/formbuilder-com-trust-center.yml
- type: DomainSecurity
  url: security/formbuilder-com-domain-security.yml
- type: Website
  url: https://formbuilder.com/
apis:
- name: FormBuilder API
  description: FormBuilder public REST API for creating accounts, forms, and handling responses.
  humanURL: https://formbuilder.com/developers
  baseURL: https://api.formbuilder.com
  properties: []
  aid: formbuilder-com:formbuilder-api
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-11-08'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://formbuilder.com/openapi.json
    status: null
  - url: https://api.formbuilder.com/openapi.json
    status: null
  - url: https://api.formbuilder.com/mcp
    status: 401
  - url: https://formbuilder.com/
    status: 200
x-enrichment:
  date: '2026-11-08'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

FormBuilder API — frequently asked questions

Does FormBuilder have an API?

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

How much does the FormBuilder API cost?

FormBuilder publishes its prices; its Free plan is $0 as of 2026-11-08. APIs.io lists 3 pricing plans for FormBuilder, with each plan's price, limits and inclusions under Pricing on this page.

Is the FormBuilder API ready for AI agents?

FormBuilder has a Kin Score of 37.6 out of 100 (thin) and an Agent Readiness score of 24.2 (agent-aware), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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