Ontra AI

Ontra is an AI-powered contract automation and digital execution platform for private markets. It automates routine legal and compliance workflows for investment firms, investment banks, and law firms, including contract negotiation, entity management (Atlas), in-house negotiation (Accord), automated due-diligence questionnaires (DDQ), investor obligation management (Insight for Funds), structured credit data (Insight for Credit), and reverse KYC services. The platform combines a global network of legal professionals with proprietary AI to summarize, search, compare, and surface data from legal documents, and exposes a read-only MCP server for real-time access to Atlas entity data. Ontra serves more than 1,000 firms including Blackstone, Bain Capital, AllianceBernstein, and Battery Ventures.

Ontra AI is profiled on the APIs.io network. Tagged areas include Company, Legal Tech, Contract Automation, Private Markets, and Entity Management.

Ontra AI’s developer surface includes pricing, engineering blog, support, signup flow, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

28.2/100 thin ▬ flat Agent 12/100 agent aware Front door AI 5/6 prominent Heartbeat 89/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

0 APIs 1 MCP Servers

Company Legal Tech Contract Automation Private Markets Entity Management Compliance Artificial Intelligence MCP

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 28.2/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 15.7 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 4.4 / 9

Regulatory Posture 3.3 / 15

Agent readiness — 12/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 7.1 — up to +18.6 composite points
Operational Transparency scores 0.0 — up to +13.0 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/ontra-ai/apis.yml: open an issue on github.com/api-evangelist/ontra-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 →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

MCP Servers 1

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

Ontra AI MCP Server

Remote MCP server at mcp.ontra.ai over HTTP.

MCP SERVER

Ontra AI API pricing

Prices published by Ontra AI, read 2026-10-07 from www.ontra.ai/products/pricing/.

Plan	Price
Contract Automation — Standard Edition	Monthly Minimum Fee No Includes: Ontra Market Playbook; qualified contract professionals; 24-hour return to counterparty; dedicated c
Contract Automation — Advanced Edition	$2,000 Includes: Ontra Market Playbook with unlimited customizations; qualified lawyers; 24-hour return to counterpar
Contract Automation — Premier Edition	$2,000 Includes: Unlimited customizations; qualified lawyers with top-tier firm experience
Accord	Request Pricing Includes: Annual software license: Digital Playbook, Contract Dashboard, AI-Powered Markup Tools, Unlimited Do
Insight for Funds — Standard/Advanced/Premier Tier	Try our Proof of Value Includes: Feature tiers for obligation management
Insight for Credit — Advanced/Premier Tier	Try our Proof of Value Includes: Credit covenant data tiers
Atlas	Request Pricing Includes: Annual software license incl. standard API package
KYC	Request Pricing Includes: Fully outsourced reverse KYC service

All 9 plans, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Ontra Ai Plans Pricing

9 plans

PLANS

Security Posture 2

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

Ontra Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Ontra Ai Trust Center

SOC 2 Type 2 (all 5 trust services criteria), ISO 27001:2022, ISO 42001, GDPR, CCPA

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

SignUp

SignUp

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

TrustCenter

TrustCenter

Compliance

Compliance

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

PrivacyPolicy

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: ontra-ai
name: Ontra AI
description: Ontra is an AI-powered contract automation and digital execution platform for private markets. It automates routine
  legal and compliance workflows for investment firms, investment banks, and law firms, including contract negotiation, entity
  management (Atlas), in-house negotiation (Accord), automated due-diligence questionnaires (DDQ), investor obligation management
  (Insight for Funds), structured credit data (Insight for Credit), and reverse KYC services. The platform combines a global
  network of legal professionals with proprietary AI to summarize, search, compare, and surface data from legal documents,
  and exposes a read-only MCP server for real-time access to Atlas entity data. Ontra serves more than 1,000 firms including
  Blackstone, Bain Capital, AllianceBernstein, and Battery Ventures.
url: https://raw.githubusercontent.com/api-evangelist/ontra-ai/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: stub
x-tier-reason: portfolio-lead
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: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
image: https://www.ontra.ai/favicon.ico
tags:
- Company
- Legal Tech
- Contract Automation
- Private Markets
- Entity Management
- Compliance
- Artificial Intelligence
- MCP
apis: []
common:
- type: Plans
  url: plans/ontra-ai-plans-pricing.yml
- type: DomainSecurity
  url: security/ontra-ai-domain-security.yml
- type: Website
  url: https://www.ontra.ai
- type: Pricing
  url: https://www.ontra.ai/products/pricing/
- type: Blog
  url: https://www.ontra.ai/blog/
- type: PrivacyPolicy
  url: https://www.ontra.ai/privacy-policy/
- type: TermsOfService
  url: https://www.ontra.ai/terms-of-service/
- type: Support
  url: https://www.ontra.ai/contact-us/
- type: Login
  url: https://app.ontra.ai/
- type: SignUp
  url: https://www.ontra.ai/demo/
- type: TrustCenter
  url: security/ontra-ai-trust-center.yml
- type: Compliance
  url: https://www.ontra.ai/products/security-and-privacy/
- type: Conformance
  url: conformance/ontra-ai-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 3
  pass: local-v1

Ontra AI API — frequently asked questions

How much does the Ontra AI API cost?

Ontra AI publishes its prices; its Contract Automation — Standard Edition plan is Monthly Minimum Fee No as of 2026-10-07. APIs.io lists 9 pricing plans for Ontra AI, with each plan's price, limits and inclusions under Pricing on this page.

Does Ontra AI have an MCP server?

Yes. APIs.io lists 1 MCP server for Ontra AI: Remote MCP server at mcp.ontra.ai over HTTP.

Is the Ontra AI API ready for AI agents?

Ontra AI has a Kin Score of 28.2 out of 100 (thin) and an Agent Readiness score of 12.2 (agent-aware), scored by API Evangelist on 2026-11-06.

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.

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