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

The Fixture catalog on APIs.io includes 1 Spectral governance ruleset.

Fixture’s developer surface includes documentation, API reference, getting-started guide, signup flow, authentication, CLI, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.2/100 developing ▬ flat Agent 60/100 agent native Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 1 MCP Servers 5 Agent Skills

Company CRM Sales B2B Artificial Intelligence Agents MCP

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Sales Management

BC-410

DealsLeadsPipelines

POST /api/v1/deals POST /api/v1/leads POST /api/v1/leads/{lead_id}/convert GET /api/v1/pipelines

Customer Relationship Management

BC-420

AccountsContacts

POST /api/v1/contacts POST /api/v1/accounts

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 50.2/100 · developing

Contract Quality 11.2 / 19

Developer Ergonomics 8.8 / 15

Access Clarity 6.4 / 15

Operational Transparency 1.2 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 4.0 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 60/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's Ask about this →
Dry-Run / Simulate Mode +4 pts — OpenAPI: destructive operations expose a dry_run / simulate / preview / validate_only parameter Ask about this →
Well-Known Catalog +4 pts — common[].type includes WellKnown, APICatalog, or api-catalog Ask about this →

1 more unmet check in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Operational Transparency scores 11.9 — up to +11.5 composite points Ask about this →
Access Clarity scores 42.6 — up to +11.5 composite points Ask about this →
Contract Quality scores 59.6 — up to +10.1 composite points Ask about this →

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.

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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/fixture/apis.yml: open an issue on github.com/api-evangelist/fixture 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 5

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)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 14

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 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.

Fixture Custom Fields API

The Custom Fields API from Fixture — 8 operation(s) for custom fields.

Fixture Lead Lists API

The Lead Lists API from Fixture — 3 operation(s) for lead lists.

Fixture Reporting API

Describe and synchronously query authorized Semantic Query datasets.

Scroll for all 14

Open Collections 11

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Fixture Accounts API

OPEN COLLECTION

Fixture Accounts Activities API

OPEN COLLECTION

Fixture Accounts Contacts API

OPEN COLLECTION

Fixture Accounts Deals API

OPEN COLLECTION

Fixture Accounts Fixture API API

OPEN COLLECTION

Fixture Accounts Leads API

OPEN COLLECTION

Fixture Accounts Notes API

OPEN COLLECTION

Fixture Accounts Pipelines API

OPEN COLLECTION

Fixture Accounts Task Statuses API

OPEN COLLECTION

Fixture Accounts Tasks API

OPEN COLLECTION

Fixture Accounts Users API

OPEN COLLECTION

Scroll for all 11

MCP Servers 1

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

Fixture MCP

Remote MCP server at beta-api.fixture.app over HTTP.

MCP SERVER

Agent Skills 5

Packaged agent skills for driving this provider's APIs from an AI assistant.

fixture-contact-sync-with-merge-handling

AGENT SKILL

fixture-deal-pipeline-management

AGENT SKILL

fixture-idempotent-activity-ingestion

AGENT SKILL

fixture-lead-intake-and-conversion

AGENT SKILL

fixture-task-triage

AGENT SKILL

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Fixture

SLA

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Fixture

10 quoted statements, read from Fixture's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Fixture

19 quoted statements, read from Fixture's own page on 2026-11-09.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Fixture

2 quoted statements, read from Fixture's own page on 2026-11-09.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Fixture

1 quoted statement, read from Fixture's own page on 2026-11-09.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Fixture

1 quoted statement, read from Fixture's own page on 2026-11-09.

LICENSE

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Fixture API Rules

69 rules · 61 error-severity 7 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Fixture V1 Overlay

8 actions · update · fixture-v1-openapi.json

DERIVED

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

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AIPreferences

AIPreferences

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

WellKnown

LLMsTxt

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

ErrorCodes

Idempotency

Conventions

ErrorCatalog

Lifecycle

DataModel

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 4

Pricing, plans, and the legal terms of use

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Company 1

The organization behind the API

Website

Website

Other 4

Properties that don't map to a standard resource type

CapabilityMap

Overlay

DataProcessing

Eligibility

Source (apis.yml)

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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - 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: '2026-11-13'
  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: '0.23'
created: '2026-07-17'
modified: '2026-09-16'
tags:
- Company
- CRM
- Sales
- B2B
- Artificial Intelligence
- Agents
- MCP
tags_raw:
- 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:
  - Account
  tags_raw:
  - 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 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:
  - Task
  tags_raw:
  - 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:
  - User
  tags_raw:
  - 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
- aid: fixture:fixture-custom-fields-api
  name: Fixture Custom Fields API
  description: The Custom Fields API from Fixture — 8 operation(s) for custom fields.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Custom Fields
  properties:
  - type: OpenAPI
    url: openapi/fixture-custom-fields-api-openapi.yml
- aid: fixture:fixture-lead-lists-api
  name: Fixture Lead Lists API
  description: The Lead Lists API from Fixture — 3 operation(s) for lead lists.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Lead Lists
  properties:
  - type: OpenAPI
    url: openapi/fixture-lead-lists-api-openapi.yml
- aid: fixture:fixture-reporting-api
  name: Fixture Reporting API
  description: Describe and synchronously query authorized Semantic Query datasets.
  humanURL: https://fixture.app/docs/api-reference/overview
  baseURL: https://beta-api.fixture.app/api/v1
  tags:
  - Reporting
  properties:
  - type: OpenAPI
    url: openapi/fixture-reporting-api-openapi.yml
common:
- type: CapabilityMap
  url: capabilities/fixture-capability-edges.yml
  name: Fixture Business Capability Map
- type: Overlay
  url: overlays/fixture-v1-overlay.yaml
- 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
- type: UsageTerms
  url: terms/fixture-terms-of-service.yml
- type: DataProcessing
  url: privacy/fixture-privacy-policy.yml
- type: Eligibility
  url: eligibility/fixture-eligibility.yml
- type: AIPreferences
  url: ai-preferences/fixture-ai-preferences.yml
- type: DataLicense
  url: data-license/fixture-data-license.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

Fixture API — frequently asked questions

Does Fixture have an API?

Yes. APIs.io lists 14 APIs from Fixture, including Fixture Accounts API, Fixture Activities API and Fixture Contacts API, and 11 more.

Is there an OpenAPI specification for the Fixture API?

Yes. APIs.io indexes 14 OpenAPI specifications for Fixture, each linked for download from this page.

How do I authenticate with the Fixture API?

Fixture documents its authentication (http/apiKey/oauth2 · 3 schemes). The details are profiled on APIs.io as Fixture Authentication.

Does Fixture have an MCP server?

Yes. APIs.io lists 1 MCP server for Fixture: Remote MCP server at beta-api.fixture.app over HTTP.

Is the Fixture API ready for AI agents?

Fixture has a Kin Score of 50.2 out of 100 (developing) and an Agent Readiness score of 60.0 (agent-native), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

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Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
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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