PromptGround

PromptGround provides AI prompt management, version tracking, and testing platform. It offers a unified API key to access multiple AI models, detailed run logs, team collaboration, and SDKs for Python and JavaScript. Users get 10,000 free tokens to start, with pay‑as‑you‑go pricing and bulk discounts. The service includes a live prompt editor, variable support, and analytics for prompt performance, targeting developers, prompt engineers, and teams seeking scalable prompt workflows.

PromptGround publishes 9 API contracts indexed on the APIs.io network, including API v1 API, API v2 API, Invites API, and 6 more. Tagged areas include Artificial Intelligence, Prompt Engineering, Collaboration, Analytics, and SDK.

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

PromptGround’s developer surface includes authentication, documentation, and 17 more developer resources.

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26.8/100 thin ▬ flat Agent 25/100 agent aware Heartbeat 0/100 dormant Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 3 Agent Skills

Artificial Intelligence Prompt Engineering Collaboration Analytics SDK

Kin Score

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

Composite quality — 26.8/100 · thin

Contract Quality 9.2 / 19

Developer Ergonomics 6.0 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.5 / 10

Contract Governance 2.0 / 9

Discoverability 3.6 / 8

Regulatory Posture 1.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 0 / 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 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):

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 →
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 →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

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 Ask about this →
Contract Quality scores 48.9 — up to +12.8 composite points Ask about this →
Operational Transparency scores 4.8 — up to +12.4 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/promptground/apis.yml: open an issue on github.com/api-evangelist/promptground 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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 9

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

PromptGround API v1 API

The API v1 API from PromptGround — 1 operation(s) for api v1.

PromptGround API v2 API

The API v2 API from PromptGround — 2 operation(s) for api v2.

PromptGround Invites API

The Invites API from PromptGround — 2 operation(s) for invites.

PromptGround Models API

The Models API from PromptGround — 2 operation(s) for models.

PromptGround Payments API

The Payments API from PromptGround — 4 operation(s) for payments.

PromptGround Projects API

The Projects API from PromptGround — 4 operation(s) for projects.

PromptGround Prompts API

The Prompts API from PromptGround — 8 operation(s) for prompts.

PromptGround Sessions API

The Sessions API from PromptGround — 2 operation(s) for sessions.

PromptGround Settings API

The Settings API from PromptGround — 4 operation(s) for settings.

Scroll for all 9

Agent Skills 3

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

promptground-create-and-run-prompt

AGENT SKILL

promptground-manage-project

AGENT SKILL

promptground-payments-process-payment

AGENT SKILL

Semantic Vocabularies 1

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

Promptground Context

11 classes · 28 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.

PromptGround API Rules

12 rules · 8 error-severity 1 warn-severity 3 info-severity

SPECTRAL

Security Posture 2

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

PromptGround Authentication

apiKey · 1 scheme

SECURITY

PromptGround Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

PromptGround Agentic Access

36 operations · 21 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Company 2

The organization behind the API

Website

Website

Twitter

Twitter

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: promptground
name: PromptGround
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://www.promptground.io/images/prompt-ground-cover.png
description: PromptGround provides AI prompt management, version tracking, and testing platform. It offers a unified API key
  to access multiple AI models, detailed run logs, team collaboration, and SDKs for Python and JavaScript. Users get 10,000
  free tokens to start, with pay‑as‑you‑go pricing and bulk discounts. The service includes a live prompt editor, variable
  support, and analytics for prompt performance, targeting developers, prompt engineers, and teams seeking scalable prompt
  workflows.
url: https://raw.githubusercontent.com/api-evangelist/promptground/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: '2026-10-18'
modified: '2026-10-18'
tags:
- Artificial Intelligence
- Prompt Engineering
- Collaboration
- Analytics
- SDK
tags_raw:
- AI
- Prompt Engineering
- Collaboration
- Analytics
- SDK
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/promptground-agentic-access.yml
- type: Spectral
  url: rules/promptground-rules.yml
- type: JSONLD
  url: json-ld/promptground-context.jsonld
- type: Vocabulary
  url: vocabulary/promptground-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/promptground-data-model.yml
- type: ErrorCatalog
  url: errors/promptground-problem-types.yml
- type: Conformance
  url: conformance/promptground-conformance.yml
- type: Hosts
  url: hosts/promptground-hosts.yml
- type: Vendors
  url: vendors/promptground-vendors.yml
- type: SDKs
  url: packages/promptground-packages.yml
- type: Packages
  url: packages/promptground-packages.yml
- type: Authentication
  url: authentication/promptground-authentication.yml
- type: DomainSecurity
  url: security/promptground-domain-security.yml
- type: Website
  url: https://promptground.io/
- type: Documentation
  url: https://app.promptground.io/docs
- type: DeveloperPortal
  url: https://app.promptground.io
- type: GitHubOrganization
  url: https://github.com/NoCodeInc
- type: Twitter
  url: https://twitter.com/nocodeinc
apis:
- aid: promptground:promptground-api-v1-api
  name: PromptGround API v1 API
  description: The API v1 API from PromptGround — 1 operation(s) for api v1.
  tags:
  - ApiV1
  tags_raw:
  - API v1
  properties:
  - type: OpenAPI
    url: openapi/promptground-api-v1-api-openapi.yml
- aid: promptground:promptground-api-v2-api
  name: PromptGround API v2 API
  description: The API v2 API from PromptGround — 2 operation(s) for api v2.
  tags:
  - API v2
  properties:
  - type: OpenAPI
    url: openapi/promptground-api-v2-api-openapi.yml
- aid: promptground:promptground-invites-api
  name: PromptGround Invites API
  description: The Invites API from PromptGround — 2 operation(s) for invites.
  tags:
  - Invites
  properties:
  - type: OpenAPI
    url: openapi/promptground-invites-api-openapi.yml
- aid: promptground:promptground-models-api
  name: PromptGround Models API
  description: The Models API from PromptGround — 2 operation(s) for models.
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/promptground-models-api-openapi.yml
- aid: promptground:promptground-payments-api
  name: PromptGround Payments API
  description: The Payments API from PromptGround — 4 operation(s) for payments.
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/promptground-payments-api-openapi.yml
- aid: promptground:promptground-projects-api
  name: PromptGround Projects API
  description: The Projects API from PromptGround — 4 operation(s) for projects.
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/promptground-projects-api-openapi.yml
- aid: promptground:promptground-prompts-api
  name: PromptGround Prompts API
  description: The Prompts API from PromptGround — 8 operation(s) for prompts.
  tags:
  - Prompts
  properties:
  - type: OpenAPI
    url: openapi/promptground-prompts-api-openapi.yml
- aid: promptground:promptground-sessions-api
  name: PromptGround Sessions API
  description: The Sessions API from PromptGround — 2 operation(s) for sessions.
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/promptground-sessions-api-openapi.yml
- aid: promptground:promptground-settings-api
  name: PromptGround Settings API
  description: The Settings API from PromptGround — 4 operation(s) for settings.
  tags:
  - Settings
  properties:
  - type: OpenAPI
    url: openapi/promptground-settings-api-openapi.yml
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Unable to verify ownership of the OpenAPI spec at https://api.promptground.io/openapi.json; the spec lacks company
    identifiers.
  evidence:
  - url: https://api.promptground.io/openapi.json
    status: 200
  checked: '2026-10-18'
x-enrichment:
  date: '2026-10-18'
  status: enriched
  artifacts_added: 21
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

PromptGround API — frequently asked questions

Does PromptGround have an API?

Yes. APIs.io lists 9 APIs from PromptGround, including PromptGround API v1 API, PromptGround API v2 API and PromptGround Invites API, and 6 more.

Is there an OpenAPI specification for the PromptGround API?

Yes. APIs.io indexes 9 OpenAPI specifications for PromptGround, each linked for download from this page.

How do I authenticate with the PromptGround API?

PromptGround uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as PromptGround Authentication.

Is the PromptGround API ready for AI agents?

PromptGround has a Kin Score of 26.8 out of 100 (thin) and an Agent Readiness score of 24.5 (agent-aware), scored by API Evangelist on 2026-11-13.

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