Paragraph

Paragraph is a web3-native publishing and newsletter platform where writers get a website, a newsletter, an owned subscriber list, and an AI agent that drafts, distributes, and maintains their publication. It supports custom domains, Substack import, subscriber management, and onchain monetization through writer coins and post coins. Paragraph ships a full public REST API (public.api.paragraph.com), an official TypeScript SDK, a CLI, a hosted Model Context Protocol server, and published Agent Skills so developers and AI agents can manage posts, publications, subscribers, and coins programmatically. Backed by Union Square Ventures.

Paragraph publishes 10 APIs on the APIs.io network, including analytics API, auth API, coins API, and 7 more. Tagged areas include Company, Publishing, Newsletters, Web3, and Content.

Paragraph’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, pricing, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub
50.3/100 developing ▬ flat Agent 69/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
10 APIs 1 MCP Servers
CompanyPublishingNewslettersWeb3ContentBloggingCreator EconomyAPI

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 50.3/100 · developing
Contract Quality 14.6 / 25
Developer Ergonomics 16.1 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 69/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/paragraph: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 10

Individual APIs this provider publishes, each with its own machine-readable definition.

Paragraph analytics API

The analytics API from Paragraph — 2 operation(s) for analytics.

Paragraph auth API

The auth API from Paragraph — 2 operation(s) for auth.

Paragraph coins API

Operations related to tokenized content

Paragraph discover API

The discover API from Paragraph — 3 operation(s) for discover.

Paragraph emails API

The emails API from Paragraph — 1 operation(s) for emails.

Paragraph me API

The me API from Paragraph — 1 operation(s) for me.

Paragraph posts API

Operations related to posts and content

Paragraph publications API

Operations related to publications

Paragraph subscribers API

Operations related to subscriber management (requires API key)

Paragraph users API

Operations related to users and authors

Scroll for all 10

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

paragraph-mcp.yml

MCP SERVER

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Paragraph Authentication

http · 1 scheme

SECURITY

Paragraph Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Paragraph Agentic Access

45 operations · 14 acting

45 operations · 14 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 OpenAPI
OpenAPI

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgenticAccess
AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs
 CLI
CLI

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: paragraph
name: Paragraph
description: Paragraph is a web3-native publishing and newsletter platform where writers get a website, a newsletter, an owned
  subscriber list, and an AI agent that drafts, distributes, and maintains their publication. It supports custom domains,
  Substack import, subscriber management, and onchain monetization through writer coins and post coins. Paragraph ships a
  full public REST API (public.api.paragraph.com), an official TypeScript SDK, a CLI, a hosted Model Context Protocol server,
  and published Agent Skills so developers and AI agents can manage posts, publications, subscribers, and coins programmatically.
  Backed by Union Square Ventures.
url: https://raw.githubusercontent.com/api-evangelist/paragraph/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://paragraph.com/og.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- union-square-ventures
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Publishing
- Newsletters
- Web3
- Content
- Blogging
- Creator Economy
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: paragraph:paragraph-analytics-api
  name: Paragraph analytics API
  description: The analytics API from Paragraph — 2 operation(s) for analytics.
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - analytics
  properties:
  - type: OpenAPI
    url: openapi/paragraph-analytics-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-auth-api
  name: Paragraph auth API
  description: The auth API from Paragraph — 2 operation(s) for auth.
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - auth
  properties:
  - type: OpenAPI
    url: openapi/paragraph-auth-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-coins-api
  name: Paragraph coins API
  description: Operations related to tokenized content
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - coins
  properties:
  - type: OpenAPI
    url: openapi/paragraph-coins-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-discover-api
  name: Paragraph discover API
  description: The discover API from Paragraph — 3 operation(s) for discover.
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - discover
  properties:
  - type: OpenAPI
    url: openapi/paragraph-discover-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-emails-api
  name: Paragraph emails API
  description: The emails API from Paragraph — 1 operation(s) for emails.
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - emails
  properties:
  - type: OpenAPI
    url: openapi/paragraph-emails-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-me-api
  name: Paragraph me API
  description: The me API from Paragraph — 1 operation(s) for me.
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - me
  properties:
  - type: OpenAPI
    url: openapi/paragraph-me-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-posts-api
  name: Paragraph posts API
  description: Operations related to posts and content
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - posts
  properties:
  - type: OpenAPI
    url: openapi/paragraph-posts-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-publications-api
  name: Paragraph publications API
  description: Operations related to publications
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - publications
  properties:
  - type: OpenAPI
    url: openapi/paragraph-publications-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-subscribers-api
  name: Paragraph subscribers API
  description: Operations related to subscriber management (requires API key)
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - subscribers
  properties:
  - type: OpenAPI
    url: openapi/paragraph-subscribers-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
- aid: paragraph:paragraph-users-api
  name: Paragraph users API
  description: Operations related to users and authors
  humanURL: https://docs.paragraph.com/developers
  baseURL: https://public.api.paragraph.com/api
  tags:
  - users
  properties:
  - type: OpenAPI
    url: openapi/paragraph-users-api-openapi.yml
  - type: APIReference
    url: https://docs.paragraph.com/api-reference
  - type: Documentation
    url: https://docs.paragraph.com
common:
- type: DeveloperPortal
  url: https://docs.paragraph.com/developers
- type: Documentation
  url: https://docs.paragraph.com
- type: APIReference
  url: https://docs.paragraph.com/api-reference
- type: GettingStarted
  url: https://docs.paragraph.com/getting-started/quickstart
- type: GitHubOrganization
  url: https://github.com/paragraph-xyz
- type: Blog
  url: https://paragraph.com/@blog
- type: Support
  url: https://docs.paragraph.com/developers
- type: Pricing
  url: https://paragraph.com/pricing
- type: SignUp
  url: https://app.paragraph.com
- type: TermsOfService
  url: https://paragraph.com/terms-of-use
- type: PrivacyPolicy
  url: https://paragraph.com/privacy
- type: OpenAPI
  url: openapi/paragraph-openapi-original.json
- type: Overlay
  url: overlays/paragraph-openapi-overlay.yaml
- type: Authentication
  url: authentication/paragraph-authentication.yml
- type: Packages
  url: packages/paragraph-packages.yml
- type: SDKs
  url: packages/paragraph-packages.yml
- type: CLI
  url: cli/paragraph-cli.yml
- type: MCPServer
  url: mcp/paragraph-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/paragraph-llms.txt
- type: WellKnown
  url: well-known/paragraph-well-known.yml
- type: Conventions
  url: conventions/paragraph-conventions.yml
- type: ErrorCatalog
  url: errors/paragraph-problem-types.yml
- type: Lifecycle
  url: lifecycle/paragraph-lifecycle.yml
- type: Conformance
  url: conformance/paragraph-conformance.yml
- type: DataModel
  url: data-model/paragraph-data-model.yml
- type: AgenticAccess
  url: agentic-access/paragraph-agentic-access.yml
- type: DomainSecurity
  url: security/paragraph-domain-security.yml
- type: Website
  url: https://paragraph.com
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 19
  pass: local-v1