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 8 API contracts indexed on the APIs.io network, including Chat API, Health API, Publishers API, and 5 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

38.9/100 thin ▬ flat Agent 36/100 agent ready Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0

1 published contract 1 MCP Servers

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

Kin Score

Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0

Composite quality — 38.9/100 · thin

Contract Quality 8.6 / 19

Developer Ergonomics 7.6 / 15

Access Clarity 3.2 / 15

Operational Transparency 2.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 36/100 · 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

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 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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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

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.

Prorataai Openapi Overlay

19 actions · documentation · prorataai-openapi.json

GENERATED

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'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
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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