Mudflap website screenshot

Mudflap

Mudflap is a fintech company operating a diesel fuel-discount network for truckers, owner-operators, and fleets. Its mobile app delivers instant cost-plus diesel discounts (up to $1.00/gallon) at 3,600+ truck stops using a driver's existing debit or credit card, and its Mudflap Fuel Card extends fleet credit terms, driver spend controls, and fraud protection across 70,000+ fuel stops nationwide, managed through a fleet dashboard. Mudflap reports $1B+ saved by 515,000+ active drivers and is recommended by 94% of owner-operators and fleets. It also runs a truck-stop merchant program and a Geotab telematics integration. Mudflap is backed by Matrix Partners. The company exposes an OAuth 2.0 / OpenID Connect authorization server at api.mudflapinc.com for its partner, fleet, and merchant surfaces; no public developer OpenAPI is published.

Mudflap publishes 1 API on the APIs.io network. Tagged areas include Company, Fintech, Fuel, Trucking, and Payments.

Mudflap’s developer surface includes developer portal, getting-started guide, support, authentication, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
25.4/100 emerging ▬ flat Agent 9/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
AccessSelf serve
1 APIs
CompanyFintechFuelTruckingPaymentsFleet ManagementLogisticsFuel Card

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 25.4/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 5.9 / 17
Commercial Clarity 3.6 / 17
Operational Transparency 0.0 / 11
Governance 1.3 / 10
Discoverability 6.5 / 9
Regulatory Posture 8.2 / 15
Agent readiness — 9/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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
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.
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/.
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/mudflap: 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 1

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

Mudflap Partner API

OAuth 2.0 / OpenID Connect protected API surface serving Mudflap's partner, fleet, and merchant dashboards. Discovered via the published RFC 8414 authorization-server metadata; ...

Security Posture 2

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

Mudflap Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Mudflap Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Mudflap Scopes

3 scopes · authorizationCode/password

3 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal
Portal
 GettingStarted
GettingStarted

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 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 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

OpenIDConnect
OpenIDConnect

Source (apis.yml)

apis.yml Raw ↑ 
aid: mudflap
name: Mudflap
description: Mudflap is a fintech company operating a diesel fuel-discount network for truckers, owner-operators, and fleets.
  Its mobile app delivers instant cost-plus diesel discounts (up to $1.00/gallon) at 3,600+ truck stops using a driver's existing
  debit or credit card, and its Mudflap Fuel Card extends fleet credit terms, driver spend controls, and fraud protection
  across 70,000+ fuel stops nationwide, managed through a fleet dashboard. Mudflap reports $1B+ saved by 515,000+ active drivers
  and is recommended by 94% of owner-operators and fleets. It also runs a truck-stop merchant program and a Geotab telematics
  integration. Mudflap is backed by Matrix Partners. The company exposes an OAuth 2.0 / OpenID Connect authorization server
  at api.mudflapinc.com for its partner, fleet, and merchant surfaces; no public developer OpenAPI is published.
url: https://raw.githubusercontent.com/api-evangelist/mudflap/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://cdn.prod.website-files.com/663e75126ab14bc3a56a0e08/66bfbffec2941b37b6c31a3c_og-brand.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- matrix-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Fintech
- Fuel
- Trucking
- Payments
- Fleet Management
- Logistics
- Fuel Card
apis:
- name: Mudflap Partner API
  description: OAuth 2.0 / OpenID Connect protected API surface serving Mudflap's partner, fleet, and merchant dashboards.
    Discovered via the published RFC 8414 authorization-server metadata; no public OpenAPI reference is available.
  humanURL: https://partner.mudflapinc.com/
  baseURL: https://api.mudflapinc.com
  tags:
  - Fuel
  - Payments
  - OAuth
  properties:
  - type: Authentication
    url: authentication/mudflap-authentication.yml
  - type: OAuthScopes
    url: scopes/mudflap-scopes.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://mudflapinc.com
- type: Portal
  url: https://partner.mudflapinc.com/
- type: GettingStarted
  url: https://www.mudflapinc.com/app/how-it-works
- type: Support
  url: https://www.mudflapinc.com/contact
- type: TermsOfService
  url: https://www.mudflapinc.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.mudflapinc.com/privacy
- type: LLMsTxt
  url: llms/mudflap-llms.txt
- type: WellKnown
  url: well-known/mudflap-well-known.yml
- type: Authentication
  url: authentication/mudflap-authentication.yml
- type: OpenIDConnect
  url: authentication/mudflap-authentication.yml
- type: OAuthScopes
  url: scopes/mudflap-scopes.yml
- type: Conventions
  url: conventions/mudflap-conventions.yml
- type: Conformance
  url: conformance/mudflap-conformance.yml
- type: DomainSecurity
  url: security/mudflap-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 8
  pass: local-v1