JsonGPT

JsonGPT provides a simple API that generates JSON data using AI models such as OpenAI, Gemini, and others. It offers features like JSON validation, prompt caching, streaming responses, and multi‑model support, enabling developers to quickly integrate structured AI‑generated data into their applications without manual parsing. The service includes a free playground with 30 free calls, extensive documentation, and SDKs for various languages, aiming to reduce development time and cost for JSON‑centric AI use cases.

JsonGPT publishes 2 API contracts indexed on the APIs.io network, including JSON GPT API API, and 1 more. Tagged areas include Company, AI, JSON, API, and Automation.

The JsonGPT catalog on APIs.io includes 1 Spectral governance ruleset.

JsonGPT’s developer surface includes documentation, API reference, getting-started guide, and 8 more developer resources.

🌐 Visit website📡 Profile data on GitHub
29.2/100 thin Agent 17/100 agent aware Full breakdown ↓
scored 2026-10-18 · rubric v0.24.0
1 published contract
CompanyAIJSONAPIAutomation

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-18 · rubric v0.24.0
Composite quality — 29.2/100 · thin
Contract Quality 7.5 / 21
Developer Ergonomics 5.7 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.0 / 11
Contract Governance 6.7 / 10
Discoverability 5.6 / 9
Regulatory Posture 1.5 / 15
Agent readiness — 17/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 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 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 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
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/.
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/jsongpt: 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.

JsonGPT API

JSON GPT API provides JSON responses based on text prompts.

JSON GPT API API

This API provides JSON responses based on the provided text prompts.

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

JsonGPT API Rules

10 rules · 8 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Jsongpt Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 Conformance
Conformance
 ErrorCatalog
ErrorCatalog

Build 1

SDKs, sample code, and the tooling you integrate with

Postman
Postman

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Other 2

Properties that don't map to a standard resource type

Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: jsongpt
name: JsonGPT
image: https://jsongpt.com/opengraph-image.png?46bec1113ea0be97
description: JsonGPT provides a simple API that generates JSON data using AI models such as OpenAI, Gemini, and others. It
  offers features like JSON validation, prompt caching, streaming responses, and multi‑model support, enabling developers
  to quickly integrate structured AI‑generated data into their applications without manual parsing. The service includes a
  free playground with 30 free calls, extensive documentation, and SDKs for various languages, aiming to reduce development
  time and cost for JSON‑centric AI use cases.
url: https://raw.githubusercontent.com/api-evangelist/jsongpt/refs/heads/main/apis.yml
x-type: company
x-source: harvest:g2-catalog
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-18 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-17'
modified: '2026-10-17'
tags:
- Company
- AI
- JSON
- API
- Automation
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/jsongpt-rules.yml
- type: Conformance
  url: conformance/jsongpt-conformance.yml
- type: ErrorCatalog
  url: errors/jsongpt-problem-types.yml
- type: Hosts
  url: hosts/jsongpt-hosts.yml
- type: Vendors
  url: vendors/jsongpt-vendors.yml
- type: Documentation
  url: https://docs.jsongpt.com/
- type: DomainSecurity
  url: security/jsongpt-domain-security.yml
- type: Website
  url: https://jsongpt.com/
- type: APIReference
  url: https://api.jsongpt.com/
- type: GettingStarted
  url: https://jsongpt.com/playground
- type: Postman
  url: https://www.postman.com/jsongpt/workspace
apis:
- name: JsonGPT API
  description: JSON GPT API provides JSON responses based on text prompts.
  humanURL: https://jsongpt.com/
  baseURL: https://api.jsongpt.com
  aid: jsongpt:jsongpt-api
- aid: jsongpt:json-gpt-api-api
  name: JSON GPT API API
  description: This API provides JSON responses based on the provided text prompts.
  humanURL: https://jsongpt.com/openapi.yaml
  baseURL: https://api.jsongpt.com
  properties:
  - type: OpenAPI
    url: openapi/_original/jsongpt-api-openapi.yml
x-enrichment:
  date: '2026-10-18'
  status: enriched
  artifacts_added: 10
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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