Sydecar website screenshot

Sydecar

Sydecar is a deal execution platform for venture investors that automates the operational back office of Special Purpose Vehicles (SPVs) — banking, compliance, KYC/AML, contracts, capital calls, and investor reporting — so syndicate leads, emerging fund managers, venture firms, and family offices can launch and administer SPVs, syndicates, secondary SPVs, and layered SPVs in hours instead of weeks. Sydecar also publishes a developer API (api-docs.sydecar.io) for programmatically creating and managing SPVs, subscriptions, and documents.

Sydecar publishes 1 API on the APIs.io network. Tagged areas include Company, Financial-Services, Fintech, Venture Capital, and SPV.

Sydecar’s developer surface includes authentication, sandbox, engineering blog, pricing, signup flow, support, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
22.0/100 emerging ▬ flat Agent 3/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
1 APIs
CompanyFinancial-ServicesFintechVenture CapitalSPVInvestmentCompliance

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 22.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 8.1 / 20
Access Clarity 6.3 / 20
Operational Transparency 0.0 / 13
Contract Governance 0.0 / 12
Discoverability 7.6 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 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 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
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.
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/sydecar: 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 1

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

Sydecar API

The Sydecar API lets developers programmatically run funding processes on Sydecar's legal, banking, and compliance rails, with the Special Purpose Vehicle (SPV) as the foundatio...

Security Posture 2

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

Sydecar Authentication

http · 1 scheme

SECURITY

Sydecar Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox
Sandbox
 SignUp
SignUp
 Login
Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

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 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: sydecar
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
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sydecar.png
name: Sydecar
description: Sydecar is a deal execution platform for venture investors that automates the operational back office of Special
  Purpose Vehicles (SPVs) — banking, compliance, KYC/AML, contracts, capital calls, and investor reporting — so syndicate
  leads, emerging fund managers, venture firms, and family offices can launch and administer SPVs, syndicates, secondary SPVs,
  and layered SPVs in hours instead of weeks. Sydecar also publishes a developer API (api-docs.sydecar.io) for programmatically
  creating and managing SPVs, subscriptions, and documents.
url: https://raw.githubusercontent.com/api-evangelist/sydecar/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- anthemis
x-tier: stub
x-tier-reason: portfolio-lead
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Financial-Services
- Fintech
- Venture Capital
- SPV
- Investment
- Compliance
tags_raw:
- Company
- Financial Services
- Fintech
- Venture Capital
- SPV
- Investment
- Compliance
- API
apis:
- name: Sydecar API
  description: The Sydecar API lets developers programmatically run funding processes on Sydecar's legal, banking, and compliance
    rails, with the Special Purpose Vehicle (SPV) as the foundational unit — create, find, and update SPVs, manage subscriptions,
    and handle documents.
  humanURL: https://api-docs.sydecar.io/
  baseURL: https://api.sydecar.io
  tags:
  - SPV
  - Venture Capital
  - Fintech
  properties:
  - type: Documentation
    url: https://api-docs.sydecar.io/
  - type: APIReference
    url: https://api-docs.sydecar.io/
  - type: GettingStarted
    url: https://api-docs.sydecar.io/docs/resources/guide/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/sydecar-domain-security.yml
- type: Authentication
  url: authentication/sydecar-authentication.yml
- type: Sandbox
  url: sandbox/sydecar-sandbox.yml
- type: LLMsTxt
  url: llms/sydecar-llms.txt
- type: Website
  url: https://sydecar.io
- type: Blog
  url: https://sydecar.io/blog
- type: Pricing
  url: https://sydecar.io/pricing
- type: SignUp
  url: https://app.sydecar.io/login
- type: Login
  url: https://app.sydecar.io/login
- type: Support
  url: https://sydecar.io/faq
- type: TermsOfService
  url: https://sydecar.io/policies/terms-of-service
- type: PrivacyPolicy
  url: https://sydecar.io/policies/privacy-notice

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