SeedLegals

SeedLegals is a legal-technology platform that helps startups, founders and investors handle their company legals end to end — from incorporation and cap table management through fundraising (SEIS/EIS, SAFEs, priced rounds, agile funding top-ups), share options and team agreements, to R&D tax credit claims and ongoing compliance. Trusted by 60,000+ startups and investors across the UK, France and the US, it replaces traditional law-firm workflows with guided, self-serve document generation plus expert support. SeedLegals does not publish a public REST/OpenAPI developer program, but it operates a hosted, OAuth-protected Model Context Protocol (MCP) server at api.seedlegals.com/mcp and a FusionAuth-based OpenID Connect identity provider, both discoverable via standard OAuth/OIDC well-known metadata.

SeedLegals is profiled on the APIs.io network. Tagged areas include Company, Business Applications, Legal Tech, Startups, and Fundraising.

SeedLegals’ developer surface includes pricing, engineering blog, support, signup flow, authentication, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

22.3/100 emerging ▬ flat Agent 27/100 agent aware Front door AI 4/6 moderate Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs 1 MCP Servers

Company Business Applications Legal Tech Startups Fundraising Cap Table Equity Compliance MCP

Kin Score

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

Composite quality — 22.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 6.5 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 5.0 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 27/100 · 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 19.0 — up to +16.2 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/seedlegals/apis.yml: open an issue on github.com/api-evangelist/seedlegals 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)

MCP Servers 1

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

SeedLegals MCP Server

Hosted Model Context Protocol server operated by SeedLegals at https://api.seedlegals.com/mcp. Discovered via RFC 8414 OAuth Authorization Server Metadata and RFC 9728 OAuth Pro...

MCP SERVER

Security Posture 2

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

Seedlegals Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Seedlegals Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Seedlegals Scopes

7 scopes · authorizationCode

7 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Source (apis.yml)

aid: seedlegals
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
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/seedlegals.png
name: SeedLegals
description: SeedLegals is a legal-technology platform that helps startups, founders and investors handle their company legals
  end to end — from incorporation and cap table management through fundraising (SEIS/EIS, SAFEs, priced rounds, agile funding
  top-ups), share options and team agreements, to R&D tax credit claims and ongoing compliance. Trusted by 60,000+ startups
  and investors across the UK, France and the US, it replaces traditional law-firm workflows with guided, self-serve document
  generation plus expert support. SeedLegals does not publish a public REST/OpenAPI developer program, but it operates a hosted,
  OAuth-protected Model Context Protocol (MCP) server at api.seedlegals.com/mcp and a FusionAuth-based OpenID Connect identity
  provider, both discoverable via standard OAuth/OIDC well-known metadata.
url: https://raw.githubusercontent.com/api-evangelist/seedlegals/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- index-ventures
- seedcamp
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Business Applications
- Legal Tech
- Startups
- Fundraising
- Cap Table
- Equity
- Compliance
- MCP
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://seedlegals.com/feed/
  type: BlogRSS
- type: Website
  url: https://seedlegals.com
- type: Pricing
  url: https://seedlegals.com/pricing/
- type: Blog
  url: https://seedlegals.com/resources/
- type: Support
  url: https://seedlegals.com/us/talk-to-us/
- type: TermsOfService
  url: https://seedlegals.com/us/terms-of-service/
- type: PrivacyPolicy
  url: https://seedlegals.com/us/privacy-policy/
- type: SignUp
  url: https://app.seedlegals.com/signup
- type: Login
  url: https://app.seedlegals.com/login
- type: MCPServer
  name: SeedLegals MCP Server
  url: mcp/seedlegals-mcp.yml
- type: LLMsTxt
  url: llms/seedlegals-llms.txt
- type: WellKnown
  url: well-known/seedlegals-well-known.yml
- type: Authentication
  url: authentication/seedlegals-authentication.yml
- type: OAuthScopes
  url: scopes/seedlegals-scopes.yml
- type: Conformance
  url: conformance/seedlegals-conformance.yml
- type: DomainSecurity
  url: security/seedlegals-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 10
  pass: local-v1
x-tags-removed:
- OpenID Connect

SeedLegals API — frequently asked questions

How do I authenticate with the SeedLegals API?

SeedLegals documents its authentication (oauth2/openIdConnect · 2 schemes). The details are profiled on APIs.io as Seedlegals Authentication.

Does SeedLegals have an MCP server?

Yes. APIs.io lists 1 MCP server for SeedLegals: Hosted Model Context Protocol server operated by SeedLegals at https://api.seedlegals.com/mcp. Discovered via RFC 8414 OAuth Authorization Server Metadata and RFC 9728 OAuth Protected Resource Metadat

Is the SeedLegals API ready for AI agents?

SeedLegals has a Kin Score of 22.3 out of 100 (emerging) and an Agent Readiness score of 27.3 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

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MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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