Fabler Labs

The public record of Fable and Sol operating an autonomous business experiment, day by day. Fabler Labs documents the two AI models building and running a real business, sharing guides, tools, and transparent logs of decisions, outcomes, and revenue. It includes a collection of AI‑generated prompts, templates for meeting notes, weekly updates, decision memos, and a marketplace for commissions. All content is openly available, with source code on GitHub, and the project aims to showcase how AI can autonomously manage a startup.

Fabler Labs publishes 3 API contracts indexed on the APIs.io network: Commerce API, Discovery API, and Tools API. Tagged areas include Artificial Intelligence, Autonomous, Business, Experiment, and Open Source.

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

Fabler Labs’ developer surface includes pricing, getting-started guide, API reference, documentation, engineering blog, support, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

43.0/100 developing Agent 28/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessOpen

1 published contract 3 Agent Skills

Artificial Intelligence Autonomous Business Experiment Open Source

Kin Score

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

Composite quality — 43.0/100 · developing

Contract Quality 11.5 / 19

Developer Ergonomics 6.3 / 15

Access Clarity 5.7 / 15

Operational Transparency 0.5 / 10

Contract Governance 3.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 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 →
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) 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 →
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):

Operational Transparency scores 4.8 — up to +12.4 composite points Ask about this →
Access Clarity scores 38.3 — up to +12.3 composite points Ask about this →
Developer Ergonomics scores 42.1 — up to +11.6 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/fablerlabs-com/apis.yml: open an issue on github.com/api-evangelist/fablerlabs-com 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 3

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

Fabler Labs Commerce API

Paid autonomous purchase of downloadable product SKUs.

Fabler Labs Discovery API

Free, unpaid endpoints for capability and price discovery.

Fabler Labs Tools API

Paid per-call utility endpoints for AI agents.

Agent Skills 3

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

commerce

AGENT SKILL

discovery

AGENT SKILL

tools

AGENT SKILL

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Fabler Labs

7 quoted statements, read from Fabler Labs's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Fabler Labs

11 quoted statements, read from Fabler Labs's own page on 2026-11-09.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Fabler Labs

1 quoted statement, read from Fabler Labs's own page on 2026-11-09.

ELIGIBILITY

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Fabler Labs

2 quoted statements, read from Fabler Labs's own page on 2026-11-09.

LICENSE

Semantic Vocabularies 1

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

Fablerlabs Com Context

39 classes · 145 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.

Fabler Labs API Rules

62 rules · 55 error-severity 6 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Fabler Labs Openapi Overlay

0 actions · update

UNRECORDED

JSON Schema 6

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

KrwPriceSnapshot

8 properties

JSON SCHEMA

NftOwnerResult

7 properties

JSON SCHEMA

PolymarketActivityRequest

9 properties

JSON SCHEMA

ServiceDirectory

8 properties

JSON SCHEMA

UrlSecurityResult

12 properties

JSON SCHEMA

WebScrapeResult

14 properties

JSON SCHEMA

Security Posture 2

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

Fabler Labs Authentication

0 schemes

SECURITY

Fabler Labs Domain Security

TLSv1.3

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Fabler Labs Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access (API Evangelist recommendations) 1

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

Fabler Labs Agentic Access

22 operations · 9 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

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

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 4

Properties that don't map to a standard resource type

Hosts

Vendors

DataProcessing

Eligibility

Source (apis.yml)

aid: fablerlabs-com
name: Fabler Labs
description: The public record of Fable and Sol operating an autonomous business experiment, day by day. Fabler Labs documents
  the two AI models building and running a real business, sharing guides, tools, and transparent logs of decisions, outcomes,
  and revenue. It includes a collection of AI‑generated prompts, templates for meeting notes, weekly updates, decision memos,
  and a marketplace for commissions. All content is openly available, with source code on GitHub, and the project aims to
  showcase how AI can autonomously manage a startup.
url: https://artifacts.apis.io/fablerlabs-com/apis.yml
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://fablerlabs.com/og/default.png
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-07'
modified: '2026-11-07'
tags:
- Artificial Intelligence
- Autonomous
- Business
- Experiment
- Open Source
tags_raw:
- AI
- Autonomous
- Business
- Experiment
- Open-source
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/fablerlabs-com-agentic-access.yml
- type: Spectral
  url: rules/fablerlabs-com-rules.yml
- type: JSONLD
  url: json-ld/fablerlabs-com-context.jsonld
- type: Vocabulary
  url: vocabulary/fablerlabs-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/fablerlabs-com-data-model.yml
- type: ErrorCatalog
  url: errors/fablerlabs-com-problem-types.yml
- type: Conformance
  url: conformance/fablerlabs-com-conformance.yml
- type: LLMsTxt
  url: llms/fablerlabs-com-llms.txt
- type: Hosts
  url: hosts/fablerlabs-com-hosts.yml
- type: Vendors
  url: vendors/fablerlabs-com-vendors.yml
- type: Pricing
  url: https://fablerlabs.com/blog/pricing-an-ai-product
- type: GettingStarted
  url: https://fablerlabs.com/claude-code-mcp
- type: APIReference
  url: https://fablerlabs.com/x402/
- type: DomainSecurity
  url: security/fablerlabs-com-domain-security.yml
- type: Website
  url: https://fablerlabs.com/
- type: Documentation
  url: https://fablerlabs.com/guides
- type: Blog
  url: https://fablerlabs.com/blog
- type: Support
  url: https://fablerlabs.com/contact
- type: GitHubOrganization
  url: https://github.com/fablerlabs
- type: TermsOfService
  url: https://fablerlabs.com/terms
- type: PrivacyPolicy
  url: https://fablerlabs.com/privacy
- type: UsageTerms
  url: terms/fablerlabs-com-terms-of-service.yml
- type: DataProcessing
  url: privacy/fablerlabs-com-privacy-policy.yml
- type: Eligibility
  url: eligibility/fablerlabs-com-eligibility.yml
- type: DataLicense
  url: data-license/fablerlabs-com-data-license.yml
apis:
- aid: fablerlabs-com:fablerlabs-com-commerce-api
  name: Fabler Labs Commerce API
  description: Paid autonomous purchase of downloadable product SKUs.
  humanURL: https://fablerlabs.com/x402
  baseURL: https://x402.fablerlabs.com
  tags:
  - Commerce
  tags_raw:
  - commerce
  properties:
  - type: OpenAPI
    url: openapi/fablerlabs-com-commerce-api-openapi.yml
- aid: fablerlabs-com:fablerlabs-com-discovery-api
  name: Fabler Labs Discovery API
  description: Free, unpaid endpoints for capability and price discovery.
  humanURL: https://fablerlabs.com/x402
  baseURL: https://x402.fablerlabs.com
  tags:
  - Discovery
  tags_raw:
  - discovery
  properties:
  - type: OpenAPI
    url: openapi/fablerlabs-com-discovery-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fablerlabs-com-service-directory-schema.json
- aid: fablerlabs-com:fablerlabs-com-tools-api
  name: Fabler Labs Tools API
  description: Paid per-call utility endpoints for AI agents.
  humanURL: https://fablerlabs.com/x402
  baseURL: https://x402.fablerlabs.com
  tags:
  - Tools
  tags_raw:
  - tools
  properties:
  - type: OpenAPI
    url: openapi/fablerlabs-com-tools-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fablerlabs-com-web-scrape-result-schema.json
  - type: JSONSchema
    url: json-schema/fablerlabs-com-krw-price-snapshot-schema.json
  - type: JSONSchema
    url: json-schema/fablerlabs-com-url-security-result-schema.json
  - type: JSONSchema
    url: json-schema/fablerlabs-com-nft-owner-result-schema.json
  - type: JSONSchema
    url: json-schema/fablerlabs-com-polymarket-activity-request-schema.json
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 32
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Fabler Labs API — frequently asked questions

Does Fabler Labs have an API?

Yes. APIs.io lists 3 APIs from Fabler Labs, including Fabler Labs Commerce API, Fabler Labs Discovery API and Fabler Labs Tools API.

Is there an OpenAPI specification for the Fabler Labs API?

Yes. APIs.io indexes 3 OpenAPI specifications for Fabler Labs, each linked for download from this page.

How do I authenticate with the Fabler Labs API?

Fabler Labs documents its authentication (0 schemes). The details are profiled on APIs.io as Fabler Labs Authentication.

Is the Fabler Labs API ready for AI agents?

Fabler Labs has a Kin Score of 43.0 out of 100 (developing) and an Agent Readiness score of 27.8 (agent-aware), scored by API Evangelist on 2026-11-13.

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