Let's Do This

Let's Do This is an endurance-events marketplace where participants discover and register for mass-participation sport — marathons, road races, trail runs, triathlons, obstacle races and cycling events — across the United Kingdom and the United States. The platform covers event discovery, entry purchase and entry management, team entries, memberships, referral credits and discount codes, and it works with event organisers and charity partners who list and sell places through it. Backed by EQT Ventures. As of July 2026 Let's Do This publishes no public API program: there is no developer portal, API documentation, machine-readable specification, SDK or webhook surface. A live but undocumented GraphQL endpoint backs the consumer marketplace with introspection disabled.

Let’s Do This publishes 1 API on the APIs.io network. Tagged areas include Company, Fitness Tech, Endurance Sports, Events, and Event Registration.

🌐 Visit website 📡 Source on GitHub

9.6/100 minimal Agent 0/100 human only Full breakdown ↓
scored 2026-07-20 · rubric v0.4

1 APIs 0 Features

CompanyFitness TechEndurance SportsEventsEvent RegistrationMarketplaceTicketingConsumer

API Rating

API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4

Composite quality — 9.6/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.9 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 8.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 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

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/lets-do-this: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

HelpCenter

HelpCenter

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: lets-do-this
name: Let's Do This
description: 'Let''s Do This is an endurance-events marketplace where participants discover and register for mass-participation
  sport — marathons, road races, trail runs, triathlons, obstacle races and cycling events — across the United Kingdom and
  the United States. The platform covers event discovery, entry purchase and entry management, team entries, memberships,
  referral credits and discount codes, and it works with event organisers and charity partners who list and sell places through
  it. Backed by EQT Ventures. As of July 2026 Let''s Do This publishes no public API program: there is no developer portal,
  API documentation, machine-readable specification, SDK or webhook surface. A live but undocumented GraphQL endpoint backs
  the consumer marketplace with introspection disabled.'
url: https://raw.githubusercontent.com/api-evangelist/lets-do-this/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- eqt-ventures
x-tier: stub
x-tier-reason: no-public-api-program
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Fitness Tech
- Endurance Sports
- Events
- Event Registration
- Marketplace
- Ticketing
- Consumer
apis:
- name: Let's Do This GraphQL (undocumented)
  description: 'Live GraphQL endpoint backing the Let''s Do This consumer marketplace. Discovered by probe, not published
    as a developer product: no documentation, no published schema, no documented authentication and no third-party terms of
    use. Introspection is disabled, so no schema could be captured. Recorded as a factual discovery only — not a supported
    public API.'
  humanURL: https://www.letsdothis.com/
  baseURL: https://graphql.letsdothis.com/graphql
  x-status: undocumented
  x-discovery: probed
  tags:
  - GraphQL
  - Undocumented
  properties:
  - type: GraphQL
    url: graphql/lets-do-this-graphql-endpoint.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/lets-do-this-domain-security.yml
- type: Website
  url: https://www.letsdothis.com/
- type: HelpCenter
  url: https://help.letsdothis.com/
- type: LLMsTxt
  url: llms/lets-do-this-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence