Notice

Notice (notice.co) is a private-market data and investing platform founded in 2021 by Philip West and Tyson Hendricksen and headquartered in Wilmington, Delaware. It publishes Notice Price, a real-time evaluated price for private company stock recomputed every three seconds from private market transactions, indications of interest and public comparables, alongside company profiles, rankings, industry screeners and the Notice.co 50 Index (N50) covering 6,000+ private companies. Its commercial surface is a RESTful enterprise API that imports that same real-time data - Notice Price, verified trades and indications of interest - into a subscriber's own systems, plus a live OAuth-protected MCP server at api.notice.co/mcp and a free embeddable chart widget. Notice shares trade on secondary marketplaces including Forge and Nasdaq Private Market.

Notice is listed with 2 APIs on the APIs.io network. Tagged areas include Company, Private Markets, Market Data, Financial Data, and Investing.

Notice’s developer surface includes pricing, documentation, support, authentication, changelog, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.6/100 thin ▬ flat Agent 30/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 APIs 1 MCP Servers

Company Private Markets Market Data Financial Data Investing Pre-IPO Secondary Market Valuation Fintech MCP

Kin Score

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

Composite quality — 29.6/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 7.2 / 17

Operational Transparency 4.4 / 11

Contract Governance 1.9 / 10

Discoverability 6.1 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 0 / 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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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 Securities & Market Data 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
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

7 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 26.2 — up to +14.8 composite points
Access Clarity scores 42.1 — up to +11.6 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/notice/apis.yml: open an issue on github.com/api-evangelist/notice 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 3

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)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 2

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

Notice API

RESTful enterprise API for real-time private market data across 6,000+ companies - Notice Price, verified trades and indications of interest - retrievable up to once per minute....

Notice MCP Server

Live remote Model Context Protocol server for Notice, discovered by probe. Anonymous JSON-RPC calls return an RFC 9728-linked 401 challenge; the tool list requires an authentica...

MCP Servers 1

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

Notice MCP Server

Notice runs a live, remote MCP server at https://api.notice.co/mcp. It was established by probe, not by a vendor claim: an unauthenticated POST of tools/list returns HTTP 401 wi...

MCP SERVER

Notice API pricing

Prices published by Notice.

Plan	Price
Free	—
Notice Pro / Premium	—
Notice API (enterprise)	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Notice Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Notice Rate Limits

1 limits

RATE LIMITS

Security Posture 2

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

Notice Authentication

3 schemes

SECURITY

Notice Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Notice Scopes

6 scopes

SCOPES

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

MCPServer

MCPServer

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

Lifecycle

Components

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: notice
name: Notice
description: Notice (notice.co) is a private-market data and investing platform founded in 2021 by Philip West and Tyson Hendricksen
  and headquartered in Wilmington, Delaware. It publishes Notice Price, a real-time evaluated price for private company stock
  recomputed every three seconds from private market transactions, indications of interest and public comparables, alongside
  company profiles, rankings, industry screeners and the Notice.co 50 Index (N50) covering 6,000+ private companies. Its commercial
  surface is a RESTful enterprise API that imports that same real-time data - Notice Price, verified trades and indications
  of interest - into a subscriber's own systems, plus a live OAuth-protected MCP server at api.notice.co/mcp and a free embeddable
  chart widget. Notice shares trade on secondary marketplaces including Forge and Nasdaq Private Market.
url: https://raw.githubusercontent.com/api-evangelist/notice/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-harvest-listing: https://forgeglobal.com/notice_stock/
x-tier: profiled
x-tier-reason: enrichment-pass
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Company
- Private Markets
- Market Data
- Financial Data
- Investing
- Pre-IPO
- Secondary Market
- Valuation
- Fintech
- MCP
tags_raw:
- Company
- Private Markets
- Market Data
- Financial Data
- Investing
- Pre-IPO
- Secondary Markets
- Valuations
- Fintech
- MCP
apis:
- name: Notice API
  description: RESTful enterprise API for real-time private market data across 6,000+ companies - Notice Price, verified trades
    and indications of interest - retrievable up to once per minute. Sold as a 12-month enterprise subscription priced by
    the data subscribed to; the OpenAPI description at /v1/openapi.json exists as a route but returns 401 to anonymous callers,
    so no public contract is available.
  humanURL: https://learn.notice.co/en/articles/8422141-how-does-the-notice-api-work
  baseURL: https://api.notice.co/v1
  tags:
  - Market Data
  - Private Markets
  - REST
  properties:
  - type: Documentation
    url: https://learn.notice.co/en/articles/8422141-how-does-the-notice-api-work
  - type: RateLimits
    url: rate-limits/notice-rate-limits.yml
  - type: Plans
    url: plans/notice-plans-pricing.yml
  - type: Authentication
    url: authentication/notice-authentication.yml
- name: Notice MCP Server
  description: Live remote Model Context Protocol server for Notice, discovered by probe. Anonymous JSON-RPC calls return
    an RFC 9728-linked 401 challenge; the tool list requires an authenticated Notice OAuth session, so tool names and input
    schemas are not recorded.
  humanURL: https://notice.co/
  baseURL: https://api.notice.co/mcp
  tags:
  - MCP
  - Agents
  properties:
  - type: MCPServer
    url: mcp/notice-mcp.yml
  - type: Authentication
    url: authentication/notice-authentication.yml
  - type: OAuthScopes
    url: scopes/notice-scopes.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Pricing
  url: https://learn.notice.co/en/articles/8422141-how-does-the-notice-api-work
- type: DomainSecurity
  url: security/notice-domain-security.yml
- type: Website
  url: https://notice.co
- type: Documentation
  url: https://learn.notice.co/en/
- type: Support
  url: https://learn.notice.co/en/articles/8590059-how-do-i-get-support
- type: GitHubOrganization
  url: https://github.com/notice-co
- type: LLMsTxt
  url: llms/notice-llms.txt
- type: WellKnown
  url: well-known/notice-well-known.yml
- type: MCPServer
  url: mcp/notice-mcp.yml
- type: Authentication
  url: authentication/notice-authentication.yml
- type: OAuthScopes
  url: scopes/notice-scopes.yml
- type: Conformance
  url: conformance/notice-conformance.yml
- type: Conventions
  url: conventions/notice-conventions.yml
- type: Lifecycle
  url: lifecycle/notice-lifecycle.yml
- type: ChangeLog
  url: changelog/notice-changelog.yml
- type: Plans
  url: plans/notice-plans-pricing.yml
- type: RateLimits
  url: rate-limits/notice-rate-limits.yml
- type: Components
  url: components/notice-components.yml
x-pointer-checks:
  checked: '2026-08-26'
  method: probed with a nonsense-path control per host (roadmap#16/#37)
  note: 'Every notice.co and learn.notice.co path - including a nonsense control path - returns an identical HTTP 403 Cloudflare
    block to non-browser clients, with the same 403 for a full browser User-Agent. That is a blanket edge policy against automated
    clients, not a dead page: each URL below is corroborated either by Notice''s own llms.txt (which lists it as a canonical
    entry point) or by the page being indexed and titled in web search. Recorded as `refused` (our state), never as dead.'
  pointers:
  - url: https://notice.co
    status: 403
    verdict: refused
    corroboration: listed as the first entry in https://notice.co/llms.txt
  - url: https://learn.notice.co/en/
    status: 403
    verdict: refused
    corroboration: listed under "Learn more" in https://notice.co/llms.txt
  - url: https://learn.notice.co/en/articles/8590059-how-do-i-get-support
    status: 403
    verdict: refused
    corroboration: listed in https://learn.notice.co/llms.txt as "How do I get support?"
  - url: https://learn.notice.co/en/articles/8422141-how-does-the-notice-api-work
    status: 403
    verdict: refused
    corroboration: listed in https://learn.notice.co/llms.txt and indexed in web search
  - url: https://github.com/notice-co
    status: 200
    verdict: live
    corroboration: 'GitHub API: org "Notice", blog https://notice.co, created 2021-04-26'
  control:
  - url: https://notice.co/zzz-nonsense-control-9182
    status: 403
  - url: https://learn.notice.co/zzz-nonsense-control-9182
    status: 403
  not_emitted:
  - types:
    - Pricing
    - SignUp
    - TermsOfService
    - PrivacyPolicy
    - APIReference
    - StatusPage
    reason: These pages very likely exist (Notice's own footer and search results reference terms, privacy and pricing), but
      the 403 blanket makes every candidate URL indistinguishable from a 404, so no pointer is asserted on a URL this pass
      could not confirm.
x-enrichment:
  date: '2026-08-26'
  status: enriched
  artifacts_added: 19
  pass: local-v1

Notice API — frequently asked questions

Does Notice have an API?

Yes. APIs.io lists 2 APIs from Notice, including Notice API and Notice MCP Server.

How do I authenticate with the Notice API?

Notice documents its authentication (3 schemes). The details are profiled on APIs.io as Notice Authentication.

How much does the Notice API cost?

APIs.io lists 3 pricing plans for Notice, with each plan's price, limits and inclusions under Pricing on this page.

Does Notice have an MCP server?

Yes. APIs.io lists 1 MCP server for Notice: Notice runs a live, remote MCP server at https://api.notice.co/mcp. It was established by probe, not by a vendor claim: an unauthenticated POST of tools/list returns HTTP 401 with a WWW-Authenticate:

Is the Notice API ready for AI agents?

Notice has a Kin Score of 29.6 out of 100 (thin) and an Agent Readiness score of 29.9 (agent-ready), scored by API Evangelist on 2026-11-06.

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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