Simceptor

Simceptor provides a free no‑code mock API server that supports REST, SOAP, and WSDL, with conditional rules, AI‑native mocking via Model Context Protocol (MCP), and a playground for developers. It enables rapid creation, testing, and updating of mock endpoints, offering features like latency simulation, dynamic faker data, webhook forwarding, multi‑environment support, and integration with AI assistants such as Claude and Cursor.

Simceptor is listed with 2 APIs on the APIs.io network. Tagged areas include Company, Mock API, No-Code, AI Integration, and Developer Tools.

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

Simceptor’s developer surface includes sandbox, documentation, engineering blog, signup flow, and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.8/100 emerging Agent 36/100 agent ready Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

2 APIs 1 MCP Servers

Company Mock API No-Code AI Integration Developer Tools

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 24.8/100 · emerging

Contract Quality 4.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 5.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.0 / 10

Discoverability 4.8 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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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<a href="https://apis.io/providers/simceptor/"><img src="https://apis.io/badge/simceptor/card.svg" alt="Simceptor on APIs.io — Kin Score by API Evangelist"></a>

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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 github.com/api-evangelist/simceptor: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

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

Simceptor Mock API

Simceptor provides a mock API platform with REST, SOAP, WSDL, and AI‑native features.

Simceptor API

Simceptor API as documented publicly: 9 operations. Contract generated from the documentation by API Evangelist (2026-10-19); not the provider's own document.

MCP Servers 1

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

Simceptor MCP Server

Remote MCP server at api.simceptor.com.

MCP SERVER

Semantic Vocabularies 1

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

Simceptor Context

2 classes · 4 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Simceptor API Rules

10 rules · 9 errors 1 info

SPECTRAL

JSON Schema 2

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

GetInquiryIdResponse

3 properties

JSON SCHEMA

GetOrdersIdResponse

3 properties

JSON SCHEMA

Security Posture 1

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

Simceptor Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

SignUp

SignUp

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

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

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: simceptor
name: Simceptor
image: https://simceptor.com/og-image.jpg
description: Simceptor provides a free no‑code mock API server that supports REST, SOAP, and WSDL, with conditional rules,
  AI‑native mocking via Model Context Protocol (MCP), and a playground for developers. It enables rapid creation, testing,
  and updating of mock endpoints, offering features like latency simulation, dynamic faker data, webhook forwarding, multi‑environment
  support, and integration with AI assistants such as Claude and Cursor.
url: https://raw.githubusercontent.com/api-evangelist/simceptor/refs/heads/main/apis.yml
x-type: company
x-source: harvest:g2-catalog
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-19 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-18'
modified: '2026-10-18'
tags:
- Company
- Mock API
- No-Code
- AI Integration
- Developer Tools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/simceptor-rules.yml
- type: JSONLD
  url: json-ld/simceptor-context.jsonld
- type: Vocabulary
  url: vocabulary/simceptor-vocabulary.yml
- type: DataModel
  url: data-model/simceptor-data-model.yml
- type: Sandbox
  url: sandbox/simceptor-sandbox.yml
- type: Conformance
  url: conformance/simceptor-conformance.yml
- type: MCPServer
  url: mcp/simceptor-mcp.yml
- type: WellKnown
  url: well-known/simceptor-well-known.yml
- type: Hosts
  url: hosts/simceptor-hosts.yml
- type: Vendors
  url: vendors/simceptor-vendors.yml
- type: PrivacyPolicy
  url: https://simceptor.com/privacy
- type: DomainSecurity
  url: security/simceptor-domain-security.yml
- type: Website
  url: https://simceptor.com/
- type: Documentation
  url: https://simceptor.com/docs
- type: Blog
  url: https://simceptor.com/blog
- type: SignUp
  url: https://simceptor.com/register
- type: Login
  url: https://simceptor.com/login
- type: TermsOfService
  url: https://simceptor.com/terms
apis:
- name: Simceptor Mock API
  description: Simceptor provides a mock API platform with REST, SOAP, WSDL, and AI‑native features.
  humanURL: https://simceptor.com/docs
  aid: simceptor:simceptor-mock-api
- aid: simceptor:simceptor-api
  name: Simceptor API
  description: 'Simceptor API as documented publicly: 9 operations. Contract generated from the documentation by API Evangelist
    (2026-10-19);

    not the provider''s own document.'
  humanURL: https://simceptor.com/docs/stateful
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/simceptor-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/simceptor-get-orders-id-response-schema.json
  - type: JSONSchema
    url: json-schema/simceptor-get-inquiry-id-response-schema.json
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Documentation pages are rendered via JavaScript (Next.js), preventing machine‑readable spec discovery.
  evidence:
  - url: https://simceptor.com/docs/openapi
    status: 200
  checked: '2026-10-19'
x-enrichment:
  date: '2026-10-19'
  status: enriched
  artifacts_added: 19
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

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