Titus

Titus provides a flexible payment orchestration platform enabling businesses to integrate multiple payment methods, manage risk, and streamline checkout experiences. Founded with backing from Sequoia Capital, Titus offers APIs for payments, refunds, subscriptions, and reporting, targeting B2B SaaS and e‑commerce companies. The platform emphasizes developer-friendly documentation, robust security, and scalable infrastructure, supporting global merchants across various industries.

Titus publishes 9 API contracts indexed on the APIs.io network, including Authorizations API, Business Connections API, Checkouts API, and 6 more. Tagged areas include Company, Payments, FinTech, Orchestration, and API.

The Titus catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Titus’ developer surface includes authentication, documentation, API reference, getting-started guide, pricing, support, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.4/100 developing Agent 48/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract

Company PaymentsFinTechOrchestrationAPIB2B

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 50.4/100 · developing

Contract Quality 11.4 / 21

Developer Ergonomics 9.3 / 17

Access Clarity 13.0 / 17

Operational Transparency 0.9 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.3 / 15

Agent readiness — 48/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 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 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Payments 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

3 more unmet checks in the Agent Readiness table above.

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

Operational Transparency scores 7.9 — up to +12.0 composite points
Contract Quality scores 53.8 — up to +11.6 composite points
Contract Governance scores 22.0 — up to +9.4 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/titus/apis.yml: open an issue on github.com/api-evangelist/titus 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 →

APIs 9

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

Titus API

Titus provides payment orchestration APIs.

Titus Authorizations API

The Authorizations API from Titus — 4 operation(s) for authorizations.

Titus Business Connections API

The BusinessConnections API from Titus — 4 operation(s) for businessconnections.

Titus Checkouts API

The Checkouts API from Titus — 6 operation(s) for checkouts.

Titus Customers API

The Customers API from Titus — 6 operation(s) for customers.

Titus Listings API

The Listings API from Titus — 1 operation(s) for listings.

Titus Platform Payouts API

The PlatformPayouts API from Titus — 4 operation(s) for platformpayouts.

Titus Refunds API

The Refunds API from Titus — 1 operation(s) for refunds.

Titus Titus API

The Titus API API from Titus — 0 operation(s) for titus api.

Scroll for all 9

Pricing Plans 1

Published pricing tiers and plan structures.

Titus Plans Pricing

3 plans

PLANS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Titus Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Titus API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Titus Authentication

apiKey · 1 scheme

SECURITY

Titus Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Titus Agentic Access

34 operations · 17 acting · 1 human-in-the-loop

34 operations · 17 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Webhooks

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 7

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

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

PrivacyPolicy

TermsOfService

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: titus
name: Titus
image: https://www.gotitus.com/titus-business-og-image-v2.png
description: Titus provides a flexible payment orchestration platform enabling businesses to integrate multiple payment methods,
  manage risk, and streamline checkout experiences. Founded with backing from Sequoia Capital, Titus offers APIs for payments,
  refunds, subscriptions, and reporting, targeting B2B SaaS and e‑commerce companies. The platform emphasizes developer-friendly
  documentation, robust security, and scalable infrastructure, supporting global merchants across various industries.
url: https://artifacts.apis.io/titus/apis.yml
x-type: company
x-source: harvest:vc-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-29'
modified: '2026-10-29'
tags:
- Company
- Payments
- FinTech
- Orchestration
- API
- B2B
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/titus-agentic-access.yml
- type: Plans
  url: plans/titus-plans-pricing.yml
- type: Spectral
  url: rules/titus-rules.yml
- type: Vocabulary
  url: vocabulary/titus-vocabulary.yml
- type: Webhooks
  url: asyncapi/titus-webhooks.yml
- type: Idempotency
  url: conventions/titus-conventions.yml
- type: Conventions
  url: conventions/titus-conventions.yml
- type: ErrorCatalog
  url: errors/titus-problem-types.yml
- type: Conformance
  url: conformance/titus-conformance.yml
- type: LLMsTxt
  url: llms/titus-llms.txt
- type: WellKnown
  url: well-known/titus-well-known.yml
- type: Hosts
  url: hosts/titus-hosts.yml
- type: Vendors
  url: vendors/titus-vendors.yml
- type: DeveloperPortal
  url: https://api.gotitus.com`
- type: Authentication
  url: authentication/titus-authentication.yml
- type: DomainSecurity
  url: security/titus-domain-security.yml
- type: Website
  url: https://www.gotitus.com/
- type: Documentation
  url: https://docs.gotitus.com/
- type: APIReference
  url: https://docs.gotitus.com/reference
- type: GettingStarted
  url: https://www.gotitus.com/get-started
- type: Login
  url: https://www.gotitus.com/login
- type: Pricing
  url: https://www.gotitus.com/pricing
- type: PrivacyPolicy
  url: https://www.gotitus.com/privacy
- type: Support
  url: https://www.gotitus.com/support
- type: TermsOfService
  url: https://www.gotitus.com/terms
apis:
- name: Titus API
  description: Titus provides payment orchestration APIs.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  aid: titus:titus-api
- aid: titus:titus-authorizations-api
  name: Titus Authorizations API
  description: The Authorizations API from Titus — 4 operation(s) for authorizations.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - Authorizations
  properties:
  - type: OpenAPI
    url: openapi/titus-authorizations-api-openapi.yml
- aid: titus:titus-businessconnections-api
  name: Titus Business Connections API
  description: The BusinessConnections API from Titus — 4 operation(s) for businessconnections.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - BusinessConnections
  properties:
  - type: OpenAPI
    url: openapi/titus-businessconnections-api-openapi.yml
- aid: titus:titus-checkouts-api
  name: Titus Checkouts API
  description: The Checkouts API from Titus — 6 operation(s) for checkouts.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - Checkouts
  properties:
  - type: OpenAPI
    url: openapi/titus-checkouts-api-openapi.yml
- aid: titus:titus-customers-api
  name: Titus Customers API
  description: The Customers API from Titus — 6 operation(s) for customers.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/titus-customers-api-openapi.yml
- aid: titus:titus-listings-api
  name: Titus Listings API
  description: The Listings API from Titus — 1 operation(s) for listings.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/titus-listings-api-openapi.yml
- aid: titus:titus-platformpayouts-api
  name: Titus Platform Payouts API
  description: The PlatformPayouts API from Titus — 4 operation(s) for platformpayouts.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - PlatformPayouts
  properties:
  - type: OpenAPI
    url: openapi/titus-platformpayouts-api-openapi.yml
- aid: titus:titus-refunds-api
  name: Titus Refunds API
  description: The Refunds API from Titus — 1 operation(s) for refunds.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - Refunds
  properties:
  - type: OpenAPI
    url: openapi/titus-refunds-api-openapi.yml
- aid: titus:titus-titus-api-api
  name: Titus Titus API
  description: The Titus API API from Titus — 0 operation(s) for titus api.
  humanURL: https://docs.gotitus.com/reference
  baseURL: https://api.gotitus.com
  tags:
  - Titus API
  properties:
  - type: OpenAPI
    url: openapi/titus-titus-api-api-openapi.yml
x-backed-by:
- sequoia-capital
x-enrichment:
  date: '2026-10-29'
  status: enriched
  artifacts_added: 22
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Titus API — frequently asked questions

Does Titus have an API?

Yes. APIs.io lists 9 APIs from Titus, including Titus API, Titus Authorizations API and Titus Business Connections API, and 6 more.

Is there an OpenAPI specification for the Titus API?

Yes. APIs.io indexes 8 OpenAPI specifications for Titus, each linked for download from this page.

How do I authenticate with the Titus API?

Titus documents its authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Titus Authentication.

How much does the Titus API cost?

APIs.io lists 3 pricing plans for Titus, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Titus API ready for AI agents?

Titus has a Kin Score of 50.4 out of 100 (developing) and an Agent Readiness score of 48.0 (agent-ready), scored by API Evangelist on 2026-10-31.

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