# Newoldstamp

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

Newoldstamp is an email signature management platform that lets companies create, brand, and centrally manage professional email signatures across their teams. It provides a signature generator with customizable templates, department- and role-based signature deployment, email signature marketing banners and campaigns, click analytics, and integrations with Google Workspace, Microsoft 365, and popular email clients. Newoldstamp also operates Pearl Diver, a website-visitor identification product. Founded in 2016 and a wholly-owned subsidiary of Blackpearl Group since 2025 (previously backed by 500 Global), it serves marketing, sales, and IT teams that want consistent branded email signatures at scale. Newoldstamp publishes no documented public developer program, but its dashboard is powered by a GraphQL API at newoldstamp.com/api/graphql (41 queries, 71 mutations, 4 subscriptions) whose introspection is anonymously open.

## Kin Score — 35.3 / 100 (thin)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (-1.7 from 37.0).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 38.9 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 18.5 |
| Commercial Clarity | 65.8 |
| Access Clarity | 65.8 |

## Agent readiness — 19.4 (agent-aware)

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

## Access

Self-service — onboarding: unknown, pricing: freemium, trial: yes (confidence: medium).

## APIs (1)

- **Newoldstamp GraphQL API** — The undocumented application GraphQL API that powers the Newoldstamp dashboard — signatures, departments, campaigns, segments, Google Workspace and Microsoft 365 deployment, and...

## Security (2)

- **Newoldstamp Authentication** — http · 1 scheme
- **Newoldstamp Domain Security** — TLSv1.3

## Plans (1)

- **Newoldstamp Plans Pricing**

## Tags

Company, Email Signatures, Email Signature Management, Email Marketing, Branding, SaaS, Productivity, Website Visitor Identification, GraphQL

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