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, Artificial Intelligence, JSON, 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

19.3/100 emerging ▬ flat Agent 16/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

Company Artificial Intelligence JSON Automation

Kin Score

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

Composite quality — 19.3/100 · emerging

Contract Quality 7.5 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 4.9 / 9

Regulatory Posture 1.5 / 15

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
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)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 16.7 — up to +16.7 composite points
Contract Quality scores 35.5 — up to +16.1 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/jsongpt/apis.yml: open an issue on github.com/api-evangelist/jsongpt 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.

JSON

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

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)

aid: jsongpt
name: JsonGPT
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
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
- Artificial Intelligence
- JSON
- Automation
tags_raw:
- 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

JsonGPT API — frequently asked questions

Does JsonGPT have an API?

Yes. APIs.io lists 2 APIs from JsonGPT, including JsonGPT API and JSON GPT API API.

Is there an OpenAPI specification for the JsonGPT API?

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

Is the JsonGPT API ready for AI agents?

JsonGPT has a Kin Score of 19.3 out of 100 (emerging) and an Agent Readiness score of 15.8 (agent-aware), scored by API Evangelist on 2026-11-06.

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