ProRata.ai

ProRata.ai is an AI attribution, search and advertising company founded in 2024 by Idealab founder Bill Gross. It operates the Gist family of products — Gist Answers (an embeddable, publisher-hosted AI answer widget), Gist Content Network (a licensed publisher content corpus with revenue share), Gist Ads (advertising placed inside AI answer surfaces) and Gist GEO (generative-engine-optimization visibility tracking). Its developer surface is the Gist Developer Hub at platform.gist.ai, which publishes a public OpenAPI 3.0 contract — the "Prorata API Service" — covering chat, streaming completions, citations and attributions, threads, recommended and related questions, document summarization, publisher lookup and service health, served from https://api.gist.ai behind a Bearer API key issued at the Publisher Group level.

ProRata.ai publishes 7 APIs on the APIs.io network, including Chat API, Health API, Publishers API, and 4 more. Tagged areas include Artificial Intelligence, Search, Content, Publishing, and Advertising.

ProRata.ai’s developer surface includes documentation, getting-started guide, support, engineering blog, signup flow, authentication, sandbox, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

39.1/100 thin ▬ flat Agent 38/100 agent ready Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-09-21 · rubric v0.22.0

1 APIs 1 MCP Servers

Artificial Intelligence Search Content Publishing Advertising AttributionAnswer EnginesGenerative AI Media Content Licensing

Kin Score

Kin Score How this is scored →
scored 2026-09-21 · rubric v0.22.0

Composite quality — 39.1/100 · thin

Contract Quality 11.4 / 23

Developer Ergonomics 9.1 / 18

Access Clarity 3.8 / 18

Operational Transparency 2.8 / 12

Contract Governance 2.0 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 38/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 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

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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 github.com/api-evangelist/prorataai: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 8

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

Gist Content API (Ingest)

The publisher ingest API for the Gist Content Network. Publisher partners push articles to ProRata in real time (POST /ingest/article) or in bulk for archived content (POST /ing...

ProRata.ai Chat API

The Chat API from ProRata.ai — 5 operation(s) for chat.

ProRata.ai Health API

The Health API from ProRata.ai — 1 operation(s) for health.

ProRata.ai Publishers API

The Publishers API from ProRata.ai — 2 operation(s) for publishers.

ProRata.ai Questions API

The Questions API from ProRata.ai — 2 operation(s) for questions.

ProRata.ai Root API

The Root API from ProRata.ai — 1 operation(s) for root.

ProRata.ai Summaries API

The Summaries API from ProRata.ai — 2 operation(s) for summaries.

ProRata.ai Threads API

The Threads API from ProRata.ai — 2 operation(s) for threads.

Scroll for all 8

MCP Servers 1

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

Gist Developer Hub MCP

ProRata serves a remote MCP endpoint on its own developer-hub host, platform.gist.ai. A GET returns the plain-text guard "This URL can only be accessed with a MCP client." and a...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Prorataai Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Prorataai Rate Limits

1 limits

RATE LIMITS

Security Posture 2

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

Prorataai Authentication

apiKey · 1 scheme

SECURITY

Prorataai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Components

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

ToolCrosswalk

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: prorataai
name: ProRata.ai
description: ProRata.ai is an AI attribution, search and advertising company founded in 2024 by Idealab founder Bill Gross.
  It operates the Gist family of products — Gist Answers (an embeddable, publisher-hosted AI answer widget), Gist Content
  Network (a licensed publisher content corpus with revenue share), Gist Ads (advertising placed inside AI answer surfaces)
  and Gist GEO (generative-engine-optimization visibility tracking). Its developer surface is the Gist Developer Hub at platform.gist.ai,
  which publishes a public OpenAPI 3.0 contract — the "Prorata API Service" — covering chat, streaming completions, citations
  and attributions, threads, recommended and related questions, document summarization, publisher lookup and service health,
  served from https://api.gist.ai behind a Bearer API key issued at the Publisher Group level.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://prorata.ai/wp-content/uploads/2026/01/prorata-OGshare-OS-1.webp
url: https://raw.githubusercontent.com/api-evangelist/prorataai/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Artificial Intelligence
- Search
- Content
- Publishing
- Advertising
- Attribution
- Answer Engines
- Generative AI
- Media
- Content Licensing
apis:
- aid: prorataai:prorataai-gist-content-api
  name: Gist Content API (Ingest)
  description: The publisher ingest API for the Gist Content Network. Publisher partners push articles to ProRata in real
    time (POST /ingest/article) or in bulk for archived content (POST /ingest/multiple_articles), authenticated with a Publisher
    Group Bearer API key. The published documentation states a default rate limit of 10 requests per minute and documents
    400/401/429/500 error semantics. ProRata does not publish an OpenAPI contract for this surface; the docs give relative
    endpoint paths only.
  humanURL: https://platform.gist.ai/docs/gist-content-api
  baseURL: https://api.gist.ai
  tags:
  - Ingest
  - Content
  - Publishing
  properties:
  - type: Documentation
    url: https://platform.gist.ai/docs/gist-content-api
- aid: prorataai:prorataai-chat-api
  name: ProRata.ai Chat API
  description: The Chat API from ProRata.ai — 5 operation(s) for chat.
  humanURL: https://platform.gist.ai/docs/about-gist-services
  baseURL: https://api.gist.ai
  tags:
  - Chat
  properties:
  - type: OpenAPI
    url: openapi/prorataai-chat-api-openapi.yml
  - type: Documentation
    url: https://platform.gist.ai/docs/about-gist-services
- aid: prorataai:prorataai-health-api
  name: ProRata.ai Health API
  description: The Health API from ProRata.ai — 1 operation(s) for health.
  humanURL: https://platform.gist.ai/docs/about-gist-services
  baseURL: https://api.gist.ai
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/prorataai-health-api-openapi.yml
  - type: Documentation
    url: https://platform.gist.ai/docs/about-gist-services
- aid: prorataai:prorataai-publishers-api
  name: ProRata.ai Publishers API
  description: The Publishers API from ProRata.ai — 2 operation(s) for publishers.
  humanURL: https://platform.gist.ai/docs/about-gist-services
  baseURL: https://api.gist.ai
  tags:
  - Publishers
  properties:
  - type: OpenAPI
    url: openapi/prorataai-publishers-api-openapi.yml
  - type: Documentation
    url: https://platform.gist.ai/docs/about-gist-services
- aid: prorataai:prorataai-questions-api
  name: ProRata.ai Questions API
  description: The Questions API from ProRata.ai — 2 operation(s) for questions.
  humanURL: https://platform.gist.ai/docs/about-gist-services
  baseURL: https://api.gist.ai
  tags:
  - Questions
  properties:
  - type: OpenAPI
    url: openapi/prorataai-questions-api-openapi.yml
  - type: Documentation
    url: https://platform.gist.ai/docs/about-gist-services
- aid: prorataai:prorataai-root-api
  name: ProRata.ai Root API
  description: The Root API from ProRata.ai — 1 operation(s) for root.
  humanURL: https://platform.gist.ai/docs/about-gist-services
  baseURL: https://api.gist.ai
  tags:
  - Root
  properties:
  - type: OpenAPI
    url: openapi/prorataai-root-api-openapi.yml
  - type: Documentation
    url: https://platform.gist.ai/docs/about-gist-services
- aid: prorataai:prorataai-summaries-api
  name: ProRata.ai Summaries API
  description: The Summaries API from ProRata.ai — 2 operation(s) for summaries.
  humanURL: https://platform.gist.ai/docs/about-gist-services
  baseURL: https://api.gist.ai
  tags:
  - Summary
  tags_raw:
  - Summaries
  properties:
  - type: OpenAPI
    url: openapi/prorataai-summaries-api-openapi.yml
  - type: Documentation
    url: https://platform.gist.ai/docs/about-gist-services
- aid: prorataai:prorataai-threads-api
  name: ProRata.ai Threads API
  description: The Threads API from ProRata.ai — 2 operation(s) for threads.
  humanURL: https://platform.gist.ai/docs/about-gist-services
  baseURL: https://api.gist.ai
  tags:
  - Threads
  properties:
  - type: OpenAPI
    url: openapi/prorataai-threads-api-openapi.yml
  - type: Documentation
    url: https://platform.gist.ai/docs/about-gist-services
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/prorataai-openapi-overlay.yaml
- type: DomainSecurity
  url: security/prorataai-domain-security.yml
- type: Website
  url: https://prorata.ai/
- type: DeveloperPortal
  url: https://platform.gist.ai/docs/about-gist-services
- type: Documentation
  url: https://platform.gist.ai/docs/about-gist-services
- type: GettingStarted
  url: https://platform.gist.ai/docs/quick-start-using-widgets
- type: Support
  url: https://gist.ai/contact
- type: Blog
  url: https://gist.ai/get-the-gist
- type: GitHubOrganization
  url: https://github.com/prorata-ai
- type: SignUp
  url: https://console.gist.ai/auth/signin
- type: TermsOfService
  url: https://gist.ai/terms-of-use
- type: PrivacyPolicy
  url: https://gist.ai/privacy-policy
- type: LLMsTxt
  url: llms/prorataai-llms.txt
- type: Packages
  url: packages/prorataai-packages.yml
- type: SDKs
  url: packages/prorataai-packages.yml
- type: Components
  url: components/prorataai-components.yml
- type: MCPServer
  url: mcp/prorataai-mcp.yml
- type: ToolCrosswalk
  url: mcp/prorataai-tool-crosswalk.yml
- type: Authentication
  url: authentication/prorataai-authentication.yml
- type: Conventions
  url: conventions/prorataai-conventions.yml
- type: ErrorCatalog
  url: errors/prorataai-problem-types.yml
- type: RateLimits
  url: rate-limits/prorataai-rate-limits.yml
- type: Plans
  url: plans/prorataai-plans-pricing.yml
- type: Lifecycle
  url: lifecycle/prorataai-lifecycle.yml
- type: Conformance
  url: conformance/prorataai-conformance.yml
- type: DataModel
  url: data-model/prorataai-data-model.yml
- type: Sandbox
  url: sandbox/prorataai-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-26'
  status: enriched
  artifacts_added: 22
  pass: local-v1

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