# CircleBack

**Canonical:** https://apis.io/providers/circleback/  
**Website:** https://circleback.com/  
**APIs profiled:** 1

CircleBack is a company surfaced via the API Evangelist harvest backlog (source: secondary-market) and added to the network as a stub for full-pipeline profiling.

## Kin Score — 15.5 / 100 (emerging)

Scored 2026-10-09 under rubric 0.23.0.

| Facet | Score |
|---|---|
| Discoverability | 39.3 |
| Contract Quality | 0.0 |
| Contract Governance | 16.4 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 21.4 |
| Access Clarity | 21.1 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 18.6 (matched via fallback).

## Agent readiness — 3.1 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (1)

- **CircleBack API** — Organize contacts on iPhone - In this handy guide, you’ll discover everything you need to know about using CircleBack, whether it’s effortlessly updating outdated contacts, disc...

## Security (1)

- **Circleback Domain Security** — TLSv1.3 · DMARC

## Tags

Company

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/circleback/). Scores are computed from the provider's own public artifacts under a published rubric.