# Collectors

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

Collectors (Collectors Holdings, Inc.) is the parent company behind PSA, PCGS, Beckett, SGC, Card Ladder, and Collectors vault and financial services — the infrastructure powering trust, authentication, grading, vaulting, and marketplace services for trading cards, coins, currency, and memorabilia. Its PSA brand publishes a public developer API for certificate verification, grading order and submission tracking, and population reports, secured with Bearer access tokens.

## Kin Score — 34.1 / 100 (thin)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 34.1).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 38.8 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 42.3 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Payments**: 39.1 (matched via tags).

## Agent readiness — 24.4 (agent-aware)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **Collectors PSA Public API Methods API** — The PSA Public API Methods API from Collectors — 6 operation(s) for psa public api methods.

## MCP servers (1)

- **Collectors MCP Server**

## Agentic access (1)

- **Collectors Agentic Access** — 6 operations

## Security (2)

- **Collectors Authentication** — apiKey · 1 scheme
- **Collectors Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Marketplace, Collectibles, Authentication, Grading, Trading Cards, Verification

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