Newoldstamp

aid: newoldstamp
name: Newoldstamp
description: 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.
url: https://raw.githubusercontent.com/api-evangelist/newoldstamp/refs/heads/main/apis.yml
accessModel:
  pricing: freemium
  onboarding: self-service
  trial: true
  try_now: true
  public: false
  label: Self-service
  confidence: medium
  source:
  - https://newoldstamp.com/pricing/
  generated: '2026-08-13'
  method: searched
image: https://newoldstamp.com/images/logo-v4.svg
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-acquired-by: blackpearl-group
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-08-13'
tags:
- Company
- Email Signatures
- Email Signature Management
- Email Marketing
- Branding
- SaaS
- Productivity
- Website Visitor Identification
- GraphQL
apis:
- name: Newoldstamp GraphQL API
  description: The undocumented application GraphQL API that powers the Newoldstamp dashboard — signatures, departments, campaigns,
    segments, Google Workspace and Microsoft 365 deployment, and billing. Introspection is anonymously open; auth is a bearer
    access token from the signIn mutation. No public developer program.
  humanURL: https://newoldstamp.com/features/
  baseURL: https://newoldstamp.com/api/graphql
  properties:
  - type: GraphQL
    url: graphql/newoldstamp.graphql
  - type: Authentication
    url: authentication/newoldstamp-authentication.yml
  - type: Conventions
    url: conventions/newoldstamp-conventions.yml
  - type: DataModel
    url: data-model/newoldstamp-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/newoldstamp-domain-security.yml
- type: LLMsTxt
  url: llms/newoldstamp-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Plans
  url: plans/newoldstamp-plans-pricing.yml
- type: RateLimits
  url: rate-limits/newoldstamp-rate-limits.yml
- type: Website
  url: https://newoldstamp.com
- type: Documentation
  url: https://support.newoldstamp.com/en/
- type: Pricing
  url: https://newoldstamp.com/pricing/
- type: Blog
  url: https://newoldstamp.com/blog/
- type: Support
  url: https://support.newoldstamp.com/en/
- type: SignUp
  url: https://app.newoldstamp.com/sign-up
- type: Login
  url: https://app.newoldstamp.com/sign-in
- type: TermsOfService
  url: https://newoldstamp.com/terms-of-use/
- type: PrivacyPolicy
  url: https://newoldstamp.com/privacy/
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 11
  pass: local-v1