Split Forms

Split Forms provides a hosted form backend service that lets developers collect form submissions without building their own server. It supports HTML, React, Next.js, and AI‑generated sites, delivering submissions via email and a dashboard. The free tier offers 500 submissions with no credit‑card requirement, while paid plans add higher limits, webhooks, file uploads, and team seats.

Split Forms publishes 1 API contract indexed on the APIs.io network: Form Submission API. Tagged areas include Company, Form Backend, Developer Tools, Free Tier, and Webhook.

The Split Forms catalog on APIs.io includes 1 Spectral governance ruleset.

Split Forms’ developer surface includes changelog, API reference, documentation, pricing, engineering blog, signup flow, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.4/100 developing ▬ flat Agent 34/100 agent ready Heartbeat 53/100 slowing Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

1 published contract 1 MCP Servers

CompanyForm BackendDeveloper Tools Free Tier Webhook

Kin Score

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

Composite quality — 42.4/100 · developing

Contract Quality 8.4 / 19

Developer Ergonomics 1.4 / 15

Access Clarity 9.9 / 15

Operational Transparency 3.0 / 10

Contract Governance 3.2 / 9

Discoverability 5.6 / 8

Regulatory Posture 3.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 34/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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):

Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
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):

Developer Ergonomics scores 9.5 — up to +18.1 composite points
Contract Quality scores 44.7 — up to +13.8 composite points
Operational Transparency scores 30.3 — up to +9.1 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/splitforms/apis.yml: open an issue on github.com/api-evangelist/splitforms 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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

Form Submission API

One HTTPS endpoint that receives HTML, fetch and server‑side form submissions. Provides /api/submit with access_key, rate limits, plans and webhook support.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Split Forms MCP Server

Remote MCP server at splitforms.com requiring an API key.

MCP SERVER

Split Forms API pricing

Prices published by Split Forms. A free plan or tier is listed.

Plan	Price
Free	Free
Pro	$5/mo
Annual	$49/yr

Plan details, limits and sources →

Pricing Plans 2

Published pricing tiers and plan structures.

Splitforms Plans Pricing

3 plans

PLANS

Splitforms Price Estimates

0 plans

PLANS

Service Levels 1

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

Split Forms

SLA

FinOps 1

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

Splitforms Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Split Forms API Rules

11 rules · 9 errors 1 warnings 1 info

SPECTRAL

Security Posture 3

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

Splitforms Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Splitforms Vulnerability Disclosure

no policy recorded

SECURITY

Splitforms Trust Center

SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR

SECURITY

Agentic Access 1

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

Splitforms Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Conformance

Webhooks

Build 2

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Compliance

Compliance

Security

Security

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

ChangeLog

StatusPage

Roadmap

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: splitforms
name: Split Forms
description: Split Forms provides a hosted form backend service that lets developers collect form submissions without building
  their own server. It supports HTML, React, Next.js, and AI‑generated sites, delivering submissions via email and a dashboard.
  The free tier offers 500 submissions with no credit‑card requirement, while paid plans add higher limits, webhooks, file
  uploads, and team seats.
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: gated
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://splitforms.com/og/hero-form-to-inbox.webp
url: https://raw.githubusercontent.com/api-evangelist/splitforms/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-12'
modified: '2026-10-12'
tags:
- Company
- Form Backend
- Developer Tools
- Free Tier
- Webhook
tags_raw:
- Company
- Form Backend
- Developer Tools
- API
- Free Tier
- Webhooks
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/splitforms-agentic-access.yml
- type: Plans
  url: plans/splitforms-plans-pricing.yml
- type: Spectral
  url: rules/splitforms-rules.yml
- type: Vocabulary
  url: vocabulary/splitforms-vocabulary.yml
- type: ChangeLog
  url: changelog/splitforms-changelog.yml
- type: Compliance
  url: https://splitforms.com/security
- type: Conformance
  url: conformance/splitforms-conformance.yml
- type: LLMsTxt
  url: llms/splitforms-llms.txt
- type: ToolCrosswalk
  url: mcp/splitforms-tool-crosswalk.yml
- type: MCPServer
  url: mcp/splitforms-mcp.yml
- type: Hosts
  url: hosts/splitforms-hosts.yml
- type: Vendors
  url: vendors/splitforms-vendors.yml
- type: Webhooks
  url: https://splitforms.com/features/webhooks
- type: StatusPage
  url: https://splitforms.com/status
- type: Security
  url: https://splitforms.com/security
- type: Roadmap
  url: https://splitforms.com/roadmap
- type: ChangeLog
  url: https://splitforms.com/changelog
- type: GitHubOrganization
  url: https://github.com/splitforms
- type: TrustCenter
  url: security/splitforms-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/splitforms-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/splitforms-domain-security.yml
- type: APIReference
  url: https://splitforms.com/api-reference
- type: Documentation
  url: https://splitforms.com/docs
- type: Pricing
  url: https://splitforms.com/pricing
- type: Blog
  url: https://splitforms.com/blog
- type: TermsOfService
  url: https://splitforms.com/terms
- type: PrivacyPolicy
  url: https://splitforms.com/privacy
- type: SignUp
  url: https://splitforms.com/signup
- type: Website
  url: https://splitforms.com
apis:
- name: Form Submission API
  description: One HTTPS endpoint that receives HTML, fetch and server‑side form submissions. Provides /api/submit with access_key,
    rate limits, plans and webhook support.
  humanURL: https://splitforms.com/api-reference
  baseURL: https://splitforms.com
  aid: splitforms:form-submission-api
x-submission-notes: Hosted form backend; MCP server https://splitforms.com/api/mcp; free plan.
x-submission-probe: 'root 200, /docs 200, llms.txt 200 (POST /api/submit, /api-reference, webhooks), MCP /api/mcp live: JSON-RPC
  401-style error requiring bearer token, soft-404 check 404 (honest). Not in catalog.'
x-submitted-by: info+splitforms@townmedialabs.com (apis.io/add, 2026-10-12T15:42:54+00:00)
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-10-13'
  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://splitforms.com/openapi.json
    status: null
  - url: https://splitforms.com/api/mcp
    status: 401
  - url: https://splitforms.com
    status: 200
x-enrichment:
  date: '2026-10-13'
  status: enriched
  artifacts_added: 13
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Split Forms API — frequently asked questions

Does Split Forms have an API?

Yes. APIs.io lists 1 API from Split Forms, including Form Submission API.

Is there an OpenAPI specification for the Split Forms API?

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

How much does the Split Forms API cost?

Split Forms publishes its prices; its Pro plan is $5/mo as of 2026-10-13. APIs.io lists 3 pricing plans for Split Forms, with each plan's price, limits and inclusions under Pricing on this page.

Does Split Forms have an MCP server?

Yes. APIs.io lists 1 MCP server for Split Forms: Remote MCP server at splitforms.com requiring an API key.

Is the Split Forms API ready for AI agents?

Split Forms has a Kin Score of 42.4 out of 100 (developing) and an Agent Readiness score of 34.3 (agent-ready), scored by API Evangelist on 2026-11-06.

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