thirds.ai

Turn one design into content at scale. thirds.ai makes editable templates from a text prompt, HTML, a picture, or gallery and renders PDFs and images via a web app, REST API, or hosted MCP server. Outputs are PDF, PNG, JPEG, and WebP.

thirds.ai publishes 17 API contracts indexed on the APIs.io network, including Batches API, Brand Kits API, Carousels API, and 14 more. Tagged areas include pdf-automation, image-automation, Document Generation, HTML to PDF, and HTML to Image.

The thirds.ai catalog on APIs.io includes 1 event-driven AsyncAPI specification.

thirds.ai’s developer surface includes authentication, documentation, pricing, support, engineering blog, changelog, sandbox, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

58.0/100 strong ▬ flat Agent 42/100 agent native Front door AI 6/6 dominant Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 MCP Servers 4 Agent Skills

pdf-automationimage-automationDocument Generation HTML to PDF HTML to Imagetemplate-renderingBranded ContentDeveloper Tools MCP Server Agent-Nativemarketing-ops

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Media, Creator & Social

AE-170

Brand KitsTemplate BuildsTemplates

POST /v1/template-builds POST /v1/template-builds/{build_id}/messages POST /v1/template-builds/{build_id}/publish POST /v1/templates

Developer Platform & API Ecosystem Management

BC-4270

KeysWebhooks

POST /v1/keys DELETE /v1/keys/{key_id} GET /v1/webhooks/{webhook_id}/deliveries POST /v1/webhooks

Kin Score

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

Composite quality — 58.0/100 · strong

Contract Quality 12.1 / 21

Developer Ergonomics 9.6 / 17

Access Clarity 12.1 / 17

Operational Transparency 7.3 / 11

Contract Governance 0.5 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 42/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 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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It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/thirds-ai/"><img src="https://apis.io/badge/thirds-ai/card.svg" alt="thirds.ai on APIs.io — Kin Score by API Evangelist"></a>

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Raise your score.

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

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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

4 more unmet checks in the Agent Readiness table above.

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

Contract Governance scores 4.5 — up to +11.5 composite points
Contract Quality scores 57.0 — up to +10.8 composite points
Developer Ergonomics scores 56.5 — up to +8.7 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/thirds-ai/apis.yml: open an issue on github.com/api-evangelist/thirds-ai 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
PDF and Document Standards (PDF tooling, document signing trust, invoice documents)	long-tail	4.0 (thin)	1	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 17

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

thirds.ai MCP Server

Hosted MCP server exposing thirds.ai tools (create_brand_kit, create_template, edit_template, publish_template, render, create_batch, get_status, and more) over Streamable HTTP ...

thirds.ai Batches API

The Batches API from thirds.ai — 5 operation(s) for batches.

thirds.ai Brand Kits API

The Brand Kits API from thirds.ai — 4 operation(s) for brand kits.

thirds.ai Carousels API

The Carousels API from thirds.ai — 4 operation(s) for carousels.

thirds.ai Downloads API

The Downloads API from thirds.ai — 1 operation(s) for downloads.

thirds.ai Image API

The Image API from thirds.ai — 2 operation(s) for image.

thirds.ai Image Assets API

The Image Assets API from thirds.ai — 3 operation(s) for image assets.

thirds.ai Image Packs API

The Image Packs API from thirds.ai — 4 operation(s) for image packs.

thirds.ai Keys API

The Keys API from thirds.ai — 2 operation(s) for keys.

thirds.ai Me API

The Me API from thirds.ai — 1 operation(s) for me.

thirds.ai Openapi.json API

The Openapi.json API from thirds.ai — 1 operation(s) for openapi.json.

thirds.ai PDF API

The Pdf API from thirds.ai — 2 operation(s) for pdf.

thirds.ai Public Stats API

The Public Stats API from thirds.ai — 1 operation(s) for public stats.

thirds.ai Template Builds API

The Template Builds API from thirds.ai — 7 operation(s) for template builds.

thirds.ai Templates API

The Templates API from thirds.ai — 6 operation(s) for templates.

thirds.ai Testimonials API

The Testimonials API from thirds.ai — 1 operation(s) for testimonials.

thirds.ai Webhooks API

The Webhooks API from thirds.ai — 8 operation(s) for webhooks.

Scroll for all 17

MCP Servers 1

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

thirds.ai MCP Server

Official hosted MCP server exposing thirds.ai PDF/image rendering, template, brand-kit and batch tools over Streamable HTTP with bearer-token auth. Uses the caller's existing ac...

MCP SERVER

Agent Skills 4

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

thirds-ai-ai-template-build

AGENT SKILL

thirds-ai-csv-batch

AGENT SKILL

thirds-ai-html-to-pdf

AGENT SKILL

thirds-ai-template-with-data

AGENT SKILL

Pricing Plans 2

Published pricing tiers and plan structures.

Thirds Ai Plans Pricing

9 plans

PLANS

Thirds Ai Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Thirds Ai Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Thirds Ai Finops

FINOPS

Event Specifications 1

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

Thirds Ai Webhooks

ASYNCAPI

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Thirds Ai Openapi Overlay

3 actions · update · thirds-ai-openapi.yml

DERIVED

Security Posture 3

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

Thirds Ai Authentication

apiKey/http · 2 schemes

SECURITY

Thirds Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Thirds Ai Vulnerability Disclosure

contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Sandbox

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

Conformance

Lifecycle

ErrorCatalog

DataModel

Webhooks

Scroll for all 7

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

name: thirds.ai
description: Turn one design into content at scale. thirds.ai makes editable templates from a text prompt, HTML, a picture,
  or gallery and renders PDFs and images via a web app, REST API, or hosted MCP server. Outputs are PDF, PNG, JPEG, and WebP.
url: https://raw.githubusercontent.com/api-evangelist/thirds-ai/refs/heads/main/apis.yml
created: '2026-09-18'
modified: '2026-10-06'
specificationVersion: '0.21'
tags:
- pdf-automation
- image-automation
- Document Generation
- HTML to PDF
- HTML to Image
- template-rendering
- Branded Content
- Developer Tools
- MCP Server
- Agent-Native
- marketing-ops
tags_raw:
- pdf-automation
- image-automation
- document-generation
- html-to-pdf
- html-to-image
- template-rendering
- branded-content
- developer-tools
- mcp-server
- agent-native
- marketing-ops
apis:
- name: thirds.ai MCP Server
  description: Hosted MCP server exposing thirds.ai tools (create_brand_kit, create_template, edit_template, publish_template,
    render, create_batch, get_status, and more) over Streamable HTTP with bearer-token auth. Uses your existing account, credits,
    and templates.
  humanURL: https://thirds.ai/docs/mcp
  baseURL: https://thirds.ai/mcp
  tags:
  - pdf-automation
  - image-automation
  - Document Generation
  - HTML to PDF
  - HTML to Image
  - template-rendering
  - Branded Content
  - Developer Tools
  - MCP Server
  - Agent-Native
  - marketing-ops
  tags_raw:
  - pdf-automation
  - image-automation
  - document-generation
  - html-to-pdf
  - html-to-image
  - template-rendering
  - branded-content
  - developer-tools
  - mcp-server
  - agent-native
  - marketing-ops
  properties:
  - type: MCPServer
    url: mcp/thirds-ai-mcp.yml
  - type: MCPServer
    url: https://thirds.ai/mcp
  - type: Documentation
    url: https://thirds.ai/docs/mcp
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: ToolCrosswalk
    url: mcp/thirds-ai-tool-crosswalk.yml
- aid: thirds-ai:thirds-ai-batches-api
  name: thirds.ai Batches API
  description: The Batches API from thirds.ai — 5 operation(s) for batches.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Batches
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-batches-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-brand-kits-api
  name: thirds.ai Brand Kits API
  description: The Brand Kits API from thirds.ai — 4 operation(s) for brand kits.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Brand Kits
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-brand-kits-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-carousels-api
  name: thirds.ai Carousels API
  description: The Carousels API from thirds.ai — 4 operation(s) for carousels.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Carousels
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-carousels-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-downloads-api
  name: thirds.ai Downloads API
  description: The Downloads API from thirds.ai — 1 operation(s) for downloads.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Downloads
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-downloads-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-image-api
  name: thirds.ai Image API
  description: The Image API from thirds.ai — 2 operation(s) for image.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Image
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-image-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-image-assets-api
  name: thirds.ai Image Assets API
  description: The Image Assets API from thirds.ai — 3 operation(s) for image assets.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Image Assets
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-image-assets-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-image-packs-api
  name: thirds.ai Image Packs API
  description: The Image Packs API from thirds.ai — 4 operation(s) for image packs.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Image Packs
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-image-packs-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-keys-api
  name: thirds.ai Keys API
  description: The Keys API from thirds.ai — 2 operation(s) for keys.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Keys
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-keys-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-me-api
  name: thirds.ai Me API
  description: The Me API from thirds.ai — 1 operation(s) for me.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Me
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-me-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-openapi-json-api
  name: thirds.ai Openapi.json API
  description: The Openapi.json API from thirds.ai — 1 operation(s) for openapi.json.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Openapi.json
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-openapi-json-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-pdf-api
  name: thirds.ai PDF API
  description: The Pdf API from thirds.ai — 2 operation(s) for pdf.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - PDF
  tags_raw:
  - Pdf
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-pdf-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-public-stats-api
  name: thirds.ai Public Stats API
  description: The Public Stats API from thirds.ai — 1 operation(s) for public stats.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Public Stats
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-public-stats-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-template-builds-api
  name: thirds.ai Template Builds API
  description: The Template Builds API from thirds.ai — 7 operation(s) for template builds.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Template Builds
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-template-builds-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-templates-api
  name: thirds.ai Templates API
  description: The Templates API from thirds.ai — 6 operation(s) for templates.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-templates-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-testimonials-api
  name: thirds.ai Testimonials API
  description: The Testimonials API from thirds.ai — 1 operation(s) for testimonials.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Testimonials
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-testimonials-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
- aid: thirds-ai:thirds-ai-webhooks-api
  name: thirds.ai Webhooks API
  description: The Webhooks API from thirds.ai — 8 operation(s) for webhooks.
  humanURL: https://thirds.ai/docs/api-reference
  baseURL: https://thirds.ai/v1
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/thirds-ai-webhooks-api-openapi.yml
  - type: Documentation
    url: https://thirds.ai/docs
  - type: LLMsTxt
    url: https://thirds.ai/llms.txt
  - type: APIReference
    url: https://thirds.ai/docs/api-reference
  - type: GettingStarted
    url: https://thirds.ai/docs/quickstart
maintainers:
- FN: thirds.ai
  url: https://thirds.ai
  email: support@thirds.ai
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 96
  at: '2026-09-18T09:14:04.214Z'
common:
- url: https://thirds.ai/blog/feed.xml
  type: BlogRSS
- type: CapabilityMap
  url: capabilities/thirds-ai-capability-edges.yml
  name: thirds.ai Business Capability Map
- type: Overlay
  url: overlays/thirds-ai-openapi-overlay.yaml
- type: DomainSecurity
  url: security/thirds-ai-domain-security.yml
- type: Authentication
  url: authentication/thirds-ai-authentication.yml
- type: Website
  url: https://thirds.ai
- type: Documentation
  url: https://thirds.ai/docs
- type: Pricing
  url: https://thirds.ai/pricing
- type: Support
  url: https://thirds.ai/support
- type: Blog
  url: https://thirds.ai/blog
- type: TermsOfService
  url: https://thirds.ai/terms
- type: PrivacyPolicy
  url: https://thirds.ai/privacy
- type: ChangeLog
  url: https://thirds.ai/changelog
- type: LLMsTxt
  url: llms/thirds-ai-llms.txt
- type: Conventions
  url: conventions/thirds-ai-conventions.yml
- type: Idempotency
  url: conventions/thirds-ai-conventions.yml
- type: Conformance
  url: conformance/thirds-ai-conformance.yml
- type: Lifecycle
  url: lifecycle/thirds-ai-lifecycle.yml
- type: Plans
  url: plans/thirds-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/thirds-ai-rate-limits.yml
- type: Sandbox
  url: sandbox/thirds-ai-sandbox.yml
- type: ErrorCatalog
  url: errors/thirds-ai-problem-types.yml
- type: DataModel
  url: data-model/thirds-ai-data-model.yml
- type: Webhooks
  url: asyncapi/thirds-ai-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: VulnerabilityDisclosure
  url: security/thirds-ai-vulnerability-disclosure.yml
- type: Security
  url: security/thirds-ai-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-09-18'
  status: enriched
  artifacts_added: 22
  pass: local-v3

thirds.ai API — frequently asked questions

Does thirds.ai have an API?

Yes. APIs.io lists 17 APIs from thirds.ai, including thirds.ai MCP Server, thirds.ai Batches API and thirds.ai Brand Kits API, and 14 more.

Is there an OpenAPI specification for the thirds.ai API?

Yes. APIs.io indexes 16 OpenAPI specifications for thirds.ai, each linked for download from this page.

How do I authenticate with the thirds.ai API?

thirds.ai uses bearer-token authentication (apiKey/http · 2 schemes). The details are profiled on APIs.io as Thirds Ai Authentication.

How much does the thirds.ai API cost?

APIs.io lists 9 pricing plans for thirds.ai, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does thirds.ai have an MCP server?

Yes. APIs.io lists 1 MCP server for thirds.ai: Official hosted MCP server exposing thirds.ai PDF/image rendering, template, brand-kit and batch tools over Streamable HTTP with bearer-token auth. Uses the caller's existing account, credits and temp

Is the thirds.ai API ready for AI agents?

thirds.ai has a Kin Score of 58.0 out of 100 (strong) and an Agent Readiness score of 42.2 (agent-native), scored by API Evangelist on 2026-10-31.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

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This provider

curl "https://apis.io/api/v1/providers/thirds-ai"

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curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/thirds-ai/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/thirds-ai/evidence"

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