postzen-dev

PostZen provides a unified social media API for developers and AI agents, enabling posting, scheduling, analytics, comment and direct message management across ten major platforms. Features include media uploads, managed OAuth, analytics dashboards, inbox handling, webhooks, an MCP server, CLI tools, and SDKs. Two free accounts are available with no credit card required.

postzen-dev publishes 13 API contracts indexed on the APIs.io network, including Accounts API, Analytics API, API Keys API, and 10 more. Tagged areas include social-media, api, developer-tools, ai-agents, and automation.

The postzen-dev catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

postzen-dev’s developer surface includes CLI, authentication, API reference, documentation, pricing, engineering blog, and 26 more developer resources.

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66.0/100 strong Agent 70/100 agent native Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 MCP Servers 1 Agent Skills

social-mediaapideveloper-toolsai-agentsautomation

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 66.0/100 · strong

Contract Quality 14.9 / 21

Developer Ergonomics 9.2 / 17

Access Clarity 10.2 / 17

Operational Transparency 5.8 / 11

Contract Governance 8.1 / 10

Discoverability 5.5 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 70/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Consent & Bot Identity +3 pts — common[].type includes AIPREF, ContentSignal, WebBotAuth, or HTTPMessageSignatures

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 54.0 — up to +9.2 composite points
Access Clarity scores 60.0 — up to +8.0 composite points
Contract Quality scores 70.2 — up to +7.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/postzen-dev/apis.yml: open an issue on github.com/api-evangelist/postzen-dev to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 13

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

postzen-dev Accounts API

List and disconnect connected social accounts.

postzen-dev Analytics API

Read post, engagement, follower, and posting-time analytics, and synchronize external posts.

postzen-dev API Keys API

Manage PostZen API keys programmatically. Creating and deleting keys requires a read-write key with full profile access.

postzen-dev Comment Automations API

Instagram comment and story reply automations with private replies and delivery logs.

postzen-dev Connect API

Start and complete OAuth account connection flows.

postzen-dev Contacts API

Profile-owned people from the API, inbox, and comment automations. Maximum 5000 contacts per user and 20 channels per contact. Message counters start when Contacts ships; histor...

postzen-dev Inbox API

Read and moderate comments on Instagram, Facebook, and Threads posts. Every endpoint takes the connected account as `accountId` and identifies the post either by its PostZen pos...

postzen-dev Media API

Create presigned upload URLs for PostZen-hosted media, or upload a small file directly.

postzen-dev Posts API

Create drafts, scheduled posts, or immediate posts, and read LinkedIn comments and reactions on published organization posts. The LinkedIn reads arrive with company-page posting...

postzen-dev Profiles API

List, create, update, and delete PostZen profiles.

postzen-dev Queues API

Manage per-profile posting queues. A queue is a named weekly schedule (`slots` of `{ dayOfWeek, time }`) evaluated in the queue's own timezone. A profile may hold several queues...

postzen-dev Webhook Events API

Payloads PostZen sends to your webhook endpoints, grouped by event family. Every delivery is the JSON envelope `{ id, type, apiVersion, createdAt, data }`; `type` names the even...

postzen-dev Webhooks API

Manage outbound webhook endpoints and retained delivery logs. PostZen sends an at-least-once JSON envelope `{ id, type, apiVersion, createdAt, data }` using `POST`; automatic re...

Scroll for all 13

MCP Servers 1

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

postzen-dev MCP Server

Remote MCP server at mcp.postzen.dev.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

create-post

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Postzen Dev Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Postzen Dev Rate Limits

4 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Postzen Dev Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Postzen Dev Context

120 classes · 272 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

postzen-dev API Rules

17 rules · 15 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

CommentAutomationCreateRequest

24 properties

JSON SCHEMA

CommentAutomationUpdateRequest

23 properties

JSON SCHEMA

ContactChannel

11 properties

JSON SCHEMA

ContactCreateRequest

12 properties

JSON SCHEMA

Contact

18 properties

JSON SCHEMA

ContactUpdateRequest

9 properties

JSON SCHEMA

Security Posture 2

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

Postzen Dev Authentication

1 scheme

SECURITY

Postzen Dev Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Postzen Dev Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Postzen Dev Agentic Access

72 operations · 39 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 10

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Idempotency

Conventions

Lifecycle

ErrorCatalog

Conformance

Scroll for all 10

Build 2

SDKs, sample code, and the tooling you integrate with

CLI

CLI

ToolCrosswalk

ToolCrosswalk

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

StatusPage

StatusPage

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: postzen-dev
name: postzen-dev
description: PostZen provides a unified social media API for developers and AI agents, enabling posting, scheduling, analytics,
  comment and direct message management across ten major platforms. Features include media uploads, managed OAuth, analytics
  dashboards, inbox handling, webhooks, an MCP server, CLI tools, and SDKs. Two free accounts are available with no credit
  card required.
image: https://www.postzen.dev/opengraph-image.png
url: https://artifacts.apis.io/postzen-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- social-media
- api
- developer-tools
- ai-agents
- automation
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/postzen-dev-agentic-access.yml
- type: RateLimits
  url: rate-limits/postzen-dev-rate-limits.yml
- type: Plans
  url: plans/postzen-dev-plans-pricing.yml
- type: Spectral
  url: rules/postzen-dev-rules.yml
- type: JSONLD
  url: json-ld/postzen-dev-context.jsonld
- type: Vocabulary
  url: vocabulary/postzen-dev-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Webhooks
  url: asyncapi/postzen-dev-webhooks.yml
- type: DataModel
  url: data-model/postzen-dev-data-model.yml
- type: CLI
  url: cli/postzen-dev-cli.yml
- type: Idempotency
  url: conventions/postzen-dev-conventions.yml
- type: Conventions
  url: conventions/postzen-dev-conventions.yml
- type: Authentication
  url: authentication/postzen-dev-authentication.yml
- type: StatusPage
  url: https://status.postzen.dev
- type: Lifecycle
  url: lifecycle/postzen-dev-lifecycle.yml
- type: ErrorCatalog
  url: errors/postzen-dev-problem-types.yml
- type: Conformance
  url: conformance/postzen-dev-conformance.yml
- type: LLMsTxt
  url: llms/postzen-dev-llms.txt
- type: ToolCrosswalk
  url: mcp/postzen-dev-tool-crosswalk.yml
- type: MCPServer
  url: mcp/postzen-dev-mcp.yml
- type: WellKnown
  url: well-known/postzen-dev-well-known.yml
- type: Hosts
  url: hosts/postzen-dev-hosts.yml
- type: Vendors
  url: vendors/postzen-dev-vendors.yml
- type: APIReference
  url: https://docs.postzen.dev/api-reference
- type: DomainSecurity
  url: security/postzen-dev-domain-security.yml
- type: Website
  url: https://postzen.dev/
- type: Documentation
  url: https://docs.postzen.dev/
- type: DeveloperPortal
  url: https://docs.postzen.dev/
- type: Pricing
  url: https://www.postzen.dev/pricing
- type: Blog
  url: https://www.postzen.dev/blog
- type: TermsOfService
  url: https://www.postzen.dev/terms
- type: PrivacyPolicy
  url: https://www.postzen.dev/privacy
apis:
- aid: postzen-dev:postzen-dev-accounts-api
  name: postzen-dev Accounts API
  description: List and disconnect connected social accounts.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-accounts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-analytics-api
  name: postzen-dev Analytics API
  description: Read post, engagement, follower, and posting-time analytics, and synchronize external posts.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-analytics-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-api-keys-api
  name: postzen-dev API Keys API
  description: Manage PostZen API keys programmatically. Creating and deleting keys requires a read-write key with full profile
    access.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - API Keys
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-api-keys-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-comment-automations-api
  name: postzen-dev Comment Automations API
  description: Instagram comment and story reply automations with private replies and delivery logs.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Comment Automations
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-comment-automations-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-connect-api
  name: postzen-dev Connect API
  description: Start and complete OAuth account connection flows.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Connect
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-connect-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-contacts-api
  name: postzen-dev Contacts API
  description: Profile-owned people from the API, inbox, and comment automations. Maximum 5000 contacts per user and 20 channels
    per contact. Message counters start when Contacts ships; historical messages are not backfilled.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-contacts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-inbox-api
  name: postzen-dev Inbox API
  description: 'Read and moderate comments on Instagram, Facebook, and Threads posts. Every endpoint takes the connected account
    as `accountId` and identifies the post either by its PostZen post id or by the platform''s own post/media id. Reads also
    refresh PostZen''s stored copy of the thread. An account on any other platform returns `400 platformUnsupported`, and
    the write endpoints need the account''s comment-management scope — reconnect the account when they answer `403 platformCapabilityMissing`.
    The conversation endpoints cover Instagram direct messages instead: they read PostZen’s synced copy of each thread, refresh
    it from the platform as a side effect, and keep read state and archive state locally because Meta exposes neither. Sending
    is bounded by Meta’s 24-hour reply window, which surfaces as `400 PLATFORM_LIMITATION`.'
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Inbox
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-inbox-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-media-api
  name: postzen-dev Media API
  description: Create presigned upload URLs for PostZen-hosted media, or upload a small file directly.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Media
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-media-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-posts-api
  name: postzen-dev Posts API
  description: Create drafts, scheduled posts, or immediate posts, and read LinkedIn comments and reactions on published organization
    posts. The LinkedIn reads arrive with company-page posting, which is not available yet, pending LinkedIn's approval of
    PostZen's Community Management API access.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Posts
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-posts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-profiles-api
  name: postzen-dev Profiles API
  description: List, create, update, and delete PostZen profiles.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Profiles
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-profiles-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-queues-api
  name: postzen-dev Queues API
  description: Manage per-profile posting queues. A queue is a named weekly schedule (`slots` of `{ dayOfWeek, time }`) evaluated
    in the queue's own timezone. A profile may hold several queues and exactly one is the default. Creating a post with `queuedFromProfile`
    claims the next free slot inside a single transaction, which is what keeps concurrent creates from landing on the same
    instant.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Queues
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-queues-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-webhook-events-api
  name: postzen-dev Webhook Events API
  description: Payloads PostZen sends to your webhook endpoints, grouped by event family. Every delivery is the JSON envelope
    `{ id, type, apiVersion, createdAt, data }`; `type` names the event and `data` has the shape documented for its family.
    Events that describe related changes (a target event and its post event, for example) are delivered independently, so
    do not rely on their order.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Webhook Events
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-webhook-events-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
- aid: postzen-dev:postzen-dev-webhooks-api
  name: postzen-dev Webhooks API
  description: Manage outbound webhook endpoints and retained delivery logs. PostZen sends an at-least-once JSON envelope
    `{ id, type, apiVersion, createdAt, data }` using `POST`; automatic retries and manual redeliveries keep the same event
    id and raw body. Requests include `X-PostZen-Event`, `X-PostZen-Event-Id`, `X-PostZen-Delivery-Id`, and `X-PostZen-Timestamp`.
    When a signing secret is configured, `X-PostZen-Signature` is `v1=<hex digest>` where the digest is HMAC-SHA256 over `<timestamp>.<raw
    request body>`. Production receivers should configure signing, compare signatures in constant time, reject timestamps
    older than five minutes, and deduplicate by event id.
  humanURL: https://docs.postzen.dev/api-reference
  baseURL: https://api.postzen.dev
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/postzen-dev-webhooks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-comment-automation-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-create-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-update-request-schema.json
  - type: JSONSchema
    url: json-schema/postzen-dev-contact-channel-schema.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 39
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

postzen-dev API — frequently asked questions

Does postzen-dev have an API?

Yes. APIs.io lists 13 APIs from postzen-dev, including postzen-dev Accounts API, postzen-dev Analytics API and postzen-dev API Keys API, and 10 more.

Is there an OpenAPI specification for the postzen-dev API?

Yes. APIs.io indexes 13 OpenAPI specifications for postzen-dev, each linked for download from this page.

How do I authenticate with the postzen-dev API?

postzen-dev documents its authentication (1 scheme). The details are profiled on APIs.io as Postzen Dev Authentication.

How much does the postzen-dev API cost?

APIs.io lists 4 pricing plans for postzen-dev, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does postzen-dev have an MCP server?

Yes. APIs.io lists 1 MCP server for postzen-dev: Remote MCP server at mcp.postzen.dev.

Is the postzen-dev API ready for AI agents?

postzen-dev has a Kin Score of 66.0 out of 100 (strong) and an Agent Readiness score of 69.5 (agent-native), scored by API Evangelist on 2026-10-31.

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