Fixture website screenshot

Fixture

Fixture is an AI-native CRM built for startups, backed by Y Combinator (Winter 2026 batch). Fixture aggregates every customer interaction — email, calendar, Slack and Slack Connect, meeting notes from Granola, Notion and Circleback, and Stripe billing events — into a single structured activity graph across Accounts, Contacts, Deals, Leads, Tasks and Notes, then uses agents to surface next actions and keep records current without manual data entry. The whole system is programmable — Fixture publishes a documented REST v1 API with a generated OpenAPI 3.1 description, a hosted remote MCP server with OAuth 2.1 and dynamic client registration, and a first-party agent-oriented CLI, so humans and agents work against the same surface.

Fixture publishes 11 APIs on the APIs.io network, including Accounts API, Activities API, Contacts API, and 8 more. Tagged areas include Company, CRM, Sales, B2B, and Artificial Intelligence.

Fixture’s developer surface includes documentation, API reference, getting-started guide, signup flow, authentication, CLI, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub
47.1/100 developing ▬ flat Agent 70/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
11 APIs 1 MCP Servers
CompanyCRMSalesB2BArtificial IntelligenceAgentsMCPCustomer Relationship Management

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 47.1/100 · developing
Contract Quality 14.7 / 25
Developer Ergonomics 13.5 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 70/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/fixture: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 11

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

Fixture Accounts API

Create, read, update, and delete company records.

Fixture Activities API

List and ingest CRM Activity records.

Fixture Contacts API

Create, read, update, and delete person records.

Fixture Deals API

Create, read, update, and delete Deal records.

Fixture Fixture API API

The Fixture API API from Fixture — 1 operation(s) for fixture api.

Fixture Leads API

Create, read, update, and convert Leads.

Fixture Notes API

Create Notes linked to CRM entities.

Fixture Pipelines API

List Pipelines and inspect their nested stages.

Fixture Task Statuses API

List Task status definitions available to the current organization.

Fixture Tasks API

Create, read, update, and delete Tasks.

Fixture Users API

The Users API from Fixture — 1 operation(s) for users.

Scroll for all 11

MCP Servers 1

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

fixture-mcp.yml

MCP SERVER

Security Posture 2

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

Fixture Authentication

http/apiKey/oauth2 · 3 schemes

SECURITY

Fixture Domain Security

TLSv1.3 · HSTS

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Fixture Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Login
Login
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 WellKnown
WellKnown
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

ErrorCodes
ErrorCodes
 Idempotency
Idempotency
 Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
DataModel
 Conformance
Conformance

Scroll for all 7

Build 2

SDKs, sample code, and the tooling you integrate with

CLI
CLI
 Packages
Packages

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 2

Status, limits, changes, and where to get help

StatusPage
StatusPage
 RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: fixture
name: Fixture
description: Fixture is an AI-native CRM built for startups, backed by Y Combinator (Winter 2026 batch). Fixture aggregates
  every customer interaction — email, calendar, Slack and Slack Connect, meeting notes from Granola, Notion and Circleback,
  and Stripe billing events — into a single structured activity graph across Accounts, Contacts, Deals, Leads, Tasks and Notes,
  then uses agents to surface next actions and keep records current without manual data entry. The whole system is programmable
  — Fixture publishes a documented REST v1 API with a generated OpenAPI 3.1 description, a hosted remote MCP server with OAuth
  2.1 and dynamic client registration, and a first-party agent-oriented CLI, so humans and agents work against the same surface.
url: https://raw.githubusercontent.com/api-evangelist/fixture/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://fixture.app/logo-for-black.svg
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: lead
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- CRM
- Sales
- B2B
- Artificial Intelligence
- Agents
- MCP
- Customer Relationship Management
apis:
- aid: fixture:fixture-accounts-api
  name: Fixture Accounts API
  description: Create, read, update, and delete company records.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/fixture-accounts-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-activities-api
  name: Fixture Activities API
  description: List and ingest CRM Activity records.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Activities
  properties:
  - type: OpenAPI
    url: openapi/fixture-activities-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-contacts-api
  name: Fixture Contacts API
  description: Create, read, update, and delete person records.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/fixture-contacts-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-deals-api
  name: Fixture Deals API
  description: Create, read, update, and delete Deal records.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Deals
  properties:
  - type: OpenAPI
    url: openapi/fixture-deals-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-fixture-api-api
  name: Fixture Fixture API API
  description: The Fixture API API from Fixture — 1 operation(s) for fixture api.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Fixture API
  properties:
  - type: OpenAPI
    url: openapi/fixture-fixture-api-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-leads-api
  name: Fixture Leads API
  description: Create, read, update, and convert Leads.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Leads
  properties:
  - type: OpenAPI
    url: openapi/fixture-leads-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-notes-api
  name: Fixture Notes API
  description: Create Notes linked to CRM entities.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Notes
  properties:
  - type: OpenAPI
    url: openapi/fixture-notes-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-pipelines-api
  name: Fixture Pipelines API
  description: List Pipelines and inspect their nested stages.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Pipelines
  properties:
  - type: OpenAPI
    url: openapi/fixture-pipelines-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-task-statuses-api
  name: Fixture Task Statuses API
  description: List Task status definitions available to the current organization.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Task Statuses
  properties:
  - type: OpenAPI
    url: openapi/fixture-task-statuses-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-tasks-api
  name: Fixture Tasks API
  description: Create, read, update, and delete Tasks.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/fixture-tasks-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
- aid: fixture:fixture-users-api
  name: Fixture Users API
  description: The Users API from Fixture — 1 operation(s) for users.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/fixture-users-api-openapi.yml
  - type: Documentation
    url: https://fixture.app/docs
  - type: APIReference
    url: https://fixture.app/docs/api-reference/overview
  - type: GettingStarted
    url: https://fixture.app/docs/getting-started/quickstart
  - type: OpenAPI Source
    url: https://fixture.app/docs/openapi/fixture-v1.json
  - type: Authentication
    url: https://fixture.app/docs/authentication/api-keys
  - type: Scopes
    url: https://fixture.app/docs/authentication/scopes
  - type: ErrorCodes
    url: https://fixture.app/docs/api-reference/errors
  - type: RateLimits
    url: https://fixture.app/docs/api-reference/rate-limiting
common:
- type: DomainSecurity
  url: security/fixture-domain-security.yml
- type: Website
  url: https://fixture.app
- type: DeveloperPortal
  url: https://fixture.app/docs
- type: Documentation
  url: https://fixture.app/docs
- type: APIReference
  url: https://fixture.app/docs/api-reference/overview
- type: GettingStarted
  url: https://fixture.app/docs/getting-started/quickstart
- type: Login
  url: https://beta.fixture.app
- type: SignUp
  url: https://fixture.app/beta
- type: StatusPage
  url: https://status.fixture.app
- type: TermsOfService
  url: https://fixture.app/terms
- type: PrivacyPolicy
  url: https://fixture.app/privacy
- type: RateLimits
  url: https://fixture.app/docs/api-reference/rate-limiting
- type: ErrorCodes
  url: https://fixture.app/docs/api-reference/errors
- type: Idempotency
  url: conventions/fixture-conventions.yml
- type: Conventions
  url: conventions/fixture-conventions.yml
- type: ErrorCatalog
  url: errors/fixture-problem-types.yml
- type: Lifecycle
  url: lifecycle/fixture-lifecycle.yml
- type: Authentication
  url: authentication/fixture-authentication.yml
- type: OAuthScopes
  url: scopes/fixture-scopes.yml
- type: MCPServer
  url: mcp/fixture-mcp.yml
- type: CLI
  url: cli/fixture-cli.yml
- type: DataModel
  url: data-model/fixture-data-model.yml
- type: Conformance
  url: conformance/fixture-conformance.yml
- type: Packages
  url: packages/fixture-packages.yml
- type: WellKnown
  url: well-known/fixture-well-known.yml
- type: LLMsTxt
  url: llms/fixture-llms.txt
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 23
  pass: local-v1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io