BaseThread

BaseThread provides a shared context platform for AI tools used by teams, enabling saved prompts, clipboard history, and markdown notes across macOS applications. It integrates with major AI assistants like Claude, Cursor, and ChatGPT, allowing automatic read/write of decisions, activity, and tasks. The service offers a free beta with no credit card required and scales with per-seat pricing for larger teams. Features include product integrations, engineering and design solutions, and comprehensive security and privacy controls.

BaseThread is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Collaboration, Productivity, and Teamware.

BaseThread’s developer surface includes pricing, engineering blog, support, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

15.6/100 emerging Agent 22/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumOpen⚡ Free to try

0 APIs

Company Artificial Intelligence Collaboration ProductivityTeamwareSoftware-as-a-Service

Kin Score

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

Composite quality — 15.6/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 0.6 / 17

Access Clarity 8.1 / 17

Operational Transparency 0.6 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 22/100 · agent aware

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 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 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 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
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

8 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 3.6 — up to +19.3 composite points
Operational Transparency scores 5.3 — up to +12.3 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/basethread-ai/apis.yml: open an issue on github.com/api-evangelist/basethread-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 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 (documented)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

BaseThread API pricing

Prices published by BaseThread, read 2026-11-02 from basethread.ai/pricing.

Plan	Price
Free	$0
Team	$5 per user/ month
Enterprise	Contact sales

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Basethread Ai Plans Pricing

3 plans

PLANS

Security Posture 1

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

Basethread Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Access & Security 2

Authentication, authorization, and security posture

Security

Security

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: basethread-ai
name: BaseThread
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Freemium · Open access
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://basethread.ai/og-default.jpg
description: BaseThread provides a shared context platform for AI tools used by teams, enabling saved prompts, clipboard history,
  and markdown notes across macOS applications. It integrates with major AI assistants like Claude, Cursor, and ChatGPT, allowing
  automatic read/write of decisions, activity, and tasks. The service offers a free beta with no credit card required and
  scales with per-seat pricing for larger teams. Features include product integrations, engineering and design solutions,
  and comprehensive security and privacy controls.
url: https://artifacts.apis.io/basethread-ai/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-02 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-02'
modified: '2026-11-02'
tags:
- Company
- Artificial Intelligence
- Collaboration
- Productivity
- Teamware
- Software-as-a-Service
tags_raw:
- Company
- AI
- Collaboration
- Productivity
- Teamware
- SaaS
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/basethread-ai-plans-pricing.yml
- type: LLMsTxt
  url: llms/basethread-ai-llms.txt
- type: WellKnown
  url: well-known/basethread-ai-well-known.yml
- type: Hosts
  url: hosts/basethread-ai-hosts.yml
- type: Vendors
  url: vendors/basethread-ai-vendors.yml
- type: Security
  url: https://basethread.ai/security
- type: DomainSecurity
  url: security/basethread-ai-domain-security.yml
- type: Website
  url: https://basethread.ai/
- type: Pricing
  url: https://basethread.ai/pricing
- type: Blog
  url: https://basethread.ai/blog
- type: TermsOfService
  url: https://basethread.ai/terms
- type: PrivacyPolicy
  url: https://basethread.ai/privacy
- type: Support
  url: https://basethread.ai/contact
apis: []
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The provider's website offers information but does not publish any OpenAPI, AsyncAPI, GraphQL, or other machine‑readable
    contract.
  evidence:
  - url: https://basethread.ai/
    status: 200
  checked: '2026-11-02'
x-enrichment:
  date: '2026-11-02'
  status: enriched
  artifacts_added: 12
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

BaseThread API — frequently asked questions

How much does the BaseThread API cost?

BaseThread publishes its prices; its Free plan is $0 as of 2026-11-02. APIs.io lists 3 pricing plans for BaseThread, with each plan's price, limits and inclusions under Pricing on this page.

Is the BaseThread API ready for AI agents?

BaseThread has a Kin Score of 15.6 out of 100 (emerging) and an Agent Readiness score of 21.8 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

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MCP server

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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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