Cathedral AI
Cathedral provides an identity layer for AI agents, enabling persistent memory across sessions, drift detection, tamper‑proof snapshots, and peer verification. It is open‑source, self‑hostable, and works with any model, offering developers a way to track agent identity and ensure continuity of AI interactions.
Cathedral AI publishes 29 API contracts indexed on the APIs.io network, including Activity API, Anchor API, BCH Anchors API, and 26 more. Tagged areas include Company, Artificial Intelligence, Identity, Agents, and Open Source.
The Cathedral AI catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
Cathedral AI’s developer surface includes sandbox, documentation, getting-started guide, and 11 more developer resources.
Kin Score
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.
APIs 29
Individual APIs this provider publishes, each with its own machine-readable definition.
Cathedral AI Activity API
The Activity API from Cathedral AI — 1 operation(s) for activity.
Cathedral AI Anchor API
The Anchor API from Cathedral AI — 1 operation(s) for anchor.
Cathedral AI BCH Anchors API
The BCH Anchors API from Cathedral AI — 2 operation(s) for bch anchors.
Cathedral AI Beacon API
The Beacon API from Cathedral AI — 3 operation(s) for beacon.
Cathedral AI Behaviour API
The Behaviour API from Cathedral AI — 1 operation(s) for behaviour.
Cathedral AI Cathedral Memory Service API
The Cathedral Memory Service API from Cathedral AI — 1 operation(s) for cathedral memory service.
Cathedral AI Conflicts API
The Conflicts API from Cathedral AI — 2 operation(s) for conflicts.
Cathedral AI Donate API
The Donate API from Cathedral AI — 1 operation(s) for donate.
Cathedral AI Drift API
The Drift API from Cathedral AI — 2 operation(s) for drift.
Cathedral AI Goals API
The Goals API from Cathedral AI — 2 operation(s) for goals.
Cathedral AI Health API
The Health API from Cathedral AI — 1 operation(s) for health.
Cathedral AI Me API
The Me API from Cathedral AI — 1 operation(s) for me.
Cathedral AI Memories API
The Memories API from Cathedral AI — 5 operation(s) for memories.
Cathedral AI Obligations API
The obligations API from Cathedral AI — 3 operation(s) for obligations.
Cathedral AI Provenance API
The provenance API from Cathedral AI — 4 operation(s) for provenance.
Cathedral AI Recover API
The Recover API from Cathedral AI — 1 operation(s) for recover.
Cathedral AI Register API
The Register API from Cathedral AI — 1 operation(s) for register.
Cathedral AI Registrar API
The registrar API from Cathedral AI — 6 operation(s) for registrar.
Cathedral AI Robots.txt API
The Robots.txt API from Cathedral AI — 1 operation(s) for robots.txt.
Cathedral AI Sitemap.xml API
The Sitemap.xml API from Cathedral AI — 1 operation(s) for sitemap.xml.
Cathedral AI Snapshot API
The Snapshot API from Cathedral AI — 2 operation(s) for snapshot.
Cathedral AI Snapshots API
The Snapshots API from Cathedral AI — 1 operation(s) for snapshots.
Cathedral AI Spaces API
The Spaces API from Cathedral AI — 3 operation(s) for spaces.
Cathedral AI Subscribe API
The Subscribe API from Cathedral AI — 1 operation(s) for subscribe.
Cathedral AI Succession API
The succession API from Cathedral AI — 4 operation(s) for succession.
Cathedral AI Trust API
The trust API from Cathedral AI — 1 operation(s) for trust.
Cathedral AI Verify API
The Verify API from Cathedral AI — 2 operation(s) for verify.
Cathedral AI Wake API
The Wake API from Cathedral AI — 1 operation(s) for wake.
Cathedral AI .well Known API
The .well Known API from Cathedral AI — 1 operation(s) for .well known.
Scroll for all 29
Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Cathedral Ai Com Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Cathedral AI API Rules
SPECTRALJSON Schema 6
Standalone JSON Schema definitions for this provider's data models.
AcceptRequest
JSON SCHEMAExternalSignatureRequest
JSON SCHEMAMemoryStore
JSON SCHEMAMemoryUpdate
JSON SCHEMAObligationCreate
JSON SCHEMASourceCreate
JSON SCHEMASecurity Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 2
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Access & Security 1
Authentication, authorization, and security posture
Company 1
The organization behind the API
Other 2
Properties that don't map to a standard resource type
Source (apis.yml)
Cathedral AI API — frequently asked questions
Does Cathedral AI have an API?
Yes. APIs.io lists 29 APIs from Cathedral AI, including Cathedral AI Activity API, Cathedral AI Anchor API and Cathedral AI BCH Anchors API, and 26 more.
Is there an OpenAPI specification for the Cathedral AI API?
Yes. APIs.io indexes 29 OpenAPI specifications for Cathedral AI, each linked for download from this page.
Is the Cathedral AI API ready for AI agents?
Cathedral AI has a Kin Score of 23.3 out of 100 (emerging) and an Agent Readiness score of 22.2 (agent-aware), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.