Causera

Causera was an early-stage Palo Alto, California startup surfaced as a 500 Global (500 Startups) portfolio company. Enrichment probing found no operating public surface: the company's own domain, causera.com, resolves to a GoDaddy parked-domain lander rather than a product site, and the only verified live property is the dormant "Causera Engineering" GitHub organization (github.com/causera, created 2011-06-22), which holds a single public repository — a fork of mbleigh/princely, a Rails wrapper for the PrinceXML PDF library — last pushed in August 2011 with no public members. Causera therefore appears to be a defunct 2011-era company with no developer portal, no documentation, no API, and no published specifications. This profile records the negative result so future enrichment rounds do not re-probe from scratch.

Causera is profiled on the APIs.io network. Tagged areas include Company, 500 Global, Portfolio, Defunct, and Palo Alto.

🌐 Visit website 📡 Profile data on GitHub

0.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Company 500 Global Portfolio Defunct Palo Alto

Kin Score

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

Composite quality — 0.0/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 0.0 / 9

Regulatory Posture 0.9 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 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 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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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
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)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 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/causera/apis.yml: open an issue on github.com/api-evangelist/causera 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 →

Security Posture 1

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

Causera Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: causera
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/causera.png
name: Causera
description: 'Causera was an early-stage Palo Alto, California startup surfaced as a 500 Global (500 Startups) portfolio company.
  Enrichment probing found no operating public surface: the company''s own domain, causera.com, resolves to a GoDaddy parked-domain
  lander rather than a product site, and the only verified live property is the dormant "Causera Engineering" GitHub organization
  (github.com/causera, created 2011-06-22), which holds a single public repository — a fork of mbleigh/princely, a Rails wrapper
  for the PrinceXML PDF library — last pushed in August 2011 with no public members. Causera therefore appears to be a defunct
  2011-era company with no developer portal, no documentation, no API, and no published specifications. This profile records
  the negative result so future enrichment rounds do not re-probe from scratch.'
url: https://raw.githubusercontent.com/api-evangelist/causera/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
x-status-evidence: causera.com serves a GoDaddy parking lander (window.LANDER_SYSTEM=PW, _trfd ap:"parking"); github.com/causera
  dormant since 2011-08-02; no package-registry or well-known surface found.
x-source-url-mismatch: The 500 Global portfolio scrape (500-global/portfolio/500-global-portfolio.yml) paired the name "Causera"
  with https://simplycircle.com. That domain 301-redirects to https://www.konstella.com/ — a PTA/PTO communication product
  with no stated link to Causera. The pairing is unverified and is NOT treated as Causera's website; causera.com (declared
  as the blog URL on the Causera Engineering GitHub org) is used instead. Retained here for provenance only.
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- 500 Global
- Portfolio
- Defunct
- Palo Alto
tags_raw:
- Company
- 500 Global
- Portfolio
- Defunct
- Palo Alto
- No API Surface
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://causera.com
- type: GitHubOrganization
  url: https://github.com/causera
- type: DomainSecurity
  url: security/causera-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-tags-removed:
- Startups
x-company-stage: venture-backed
x-company-stage-evidence: 'own tags: Startup, 500 Global, Portfolio'

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