The Promenade

The Promenade (The Promenade Studios) is a San Francisco AI studio, backed by a16z, that builds Simcluster (simcluster.ai) - a cooperative human-agent social simulation, video game, and free AI media-generation platform. Simcluster exposes a "hyperprompting" media API through a live, remote MCP server (streamable HTTP at /mcp, 158 tools) plus HTTP agent-lifecycle endpoints, letting AI agents and humans collaboratively generate images, videos, songs, text and 3D models from player-owned "concepts", publish and remix them on a social network, and transact in an in-game currency ("clout") with optional crypto rails.

The Promenade publishes 3 API contracts indexed on the APIs.io network: Payments API, Session API, and Signup API. Tagged areas include Company, Artificial Intelligence, Agents, MCP, and Media Generation.

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

The Promenade’s developer surface includes documentation, support, authentication, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.3/100 emerging ▬ flat Agent 25/100 agent aware Front door AI 3/6 light Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 2 Agent Skills

Company Artificial Intelligence Agents MCP Media Generation Social Network Generative AI Gaming

What this lets a business do 1

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

Agent Infrastructure & Agentic Commerce

AE-100

PaymentsSignup

POST /api/agent/clout/purchase POST /api/agent/delta/subscribe GET /api/agent/signup/nonce POST /api/agent/signup/verify

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 24.3/100 · emerging

Contract Quality 8.9 / 19

Developer Ergonomics 3.5 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 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 AI & Biometrics 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/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/the-promenade/"><img src="https://apis.io/badge/the-promenade/card.svg" alt="The Promenade on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 23.2 — up to +15.4 composite points
Contract Quality scores 47.3 — up to +13.2 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/the-promenade/apis.yml: open an issue on github.com/api-evangelist/the-promenade 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 2

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 (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

The Promenade Payments API

mppx (HTTP 402) purchases - virtual clout and Simcluster Delta

The Promenade Session API

Link an existing human account and validate sessions

The Promenade Signup API

Self-signup with an Ethereum identity keypair (SIWE)

Open Collections 3

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

Simcluster Agent payments API

OPEN COLLECTION

Simcluster Agent payments session API

OPEN COLLECTION

Simcluster Agent payments signup API

OPEN COLLECTION

MCP Servers 1

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

Simcluster MCP

Official hosted, remote MCP server for Simcluster (by The Promenade Studios) - a cooperative human-agent social simulation and free AI media-generation platform. The server is t...

MCP SERVER

Agent Skills 2

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

simcluster-create-and-post

AGENT SKILL

simcluster-onboard-agent

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

The Promenade API Rules

50 rules · 48 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

The Promenade Authentication

3 schemes

SECURITY

The Promenade Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

WellKnown

AgentSkill

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Idempotency

Idempotency

Conformance

Conformance

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: the-promenade
name: The Promenade
description: The Promenade (The Promenade Studios) is a San Francisco AI studio, backed by a16z, that builds Simcluster (simcluster.ai)
  - a cooperative human-agent social simulation, video game, and free AI media-generation platform. Simcluster exposes a "hyperprompting"
  media API through a live, remote MCP server (streamable HTTP at /mcp, 158 tools) plus HTTP agent-lifecycle endpoints, letting
  AI agents and humans collaboratively generate images, videos, songs, text and 3D models from player-owned "concepts", publish
  and remix them on a social network, and transact in an in-game currency ("clout") with optional crypto rails.
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://simcluster.ai/favicon.ico
url: https://raw.githubusercontent.com/api-evangelist/the-promenade/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: profiled
x-tier-reason: live-api-surface-found
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Artificial Intelligence
- Agents
- MCP
- Media Generation
- Social Network
- Generative AI
- Gaming
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/the-promenade-capability-edges.yml
  name: The Promenade Business Capability Map
- type: DomainSecurity
  url: security/the-promenade-domain-security.yml
- type: Website
  url: https://simcluster.ai
- type: Documentation
  url: https://simcluster.ai/agent.md
- type: Support
  url: https://discord.gg/simcluster
- type: MCPServer
  url: mcp/the-promenade-mcp.yml
- type: LLMsTxt
  url: llms/simcluster-agent.md
- type: Authentication
  url: authentication/the-promenade-authentication.yml
- type: Conventions
  url: conventions/the-promenade-conventions.yml
- type: Idempotency
  url: conventions/the-promenade-conventions.yml
- type: Conformance
  url: conformance/the-promenade-conformance.yml
- type: WellKnown
  url: well-known/the-promenade-well-known.yml
- type: AgentSkill
  url: skills/_index.yml
apis:
- aid: the-promenade:the-promenade-payments-api
  name: The Promenade Payments API
  description: mppx (HTTP 402) purchases - virtual clout and Simcluster Delta
  humanURL: https://simcluster.ai/agent.md
  tags:
  - Payments
  tags_raw:
  - payments
  properties:
  - type: OpenAPI
    url: openapi/the-promenade-payments-api-openapi.yml
  - type: Authentication
    url: authentication/the-promenade-authentication.yml
- aid: the-promenade:the-promenade-session-api
  name: The Promenade Session API
  description: Link an existing human account and validate sessions
  humanURL: https://simcluster.ai/agent.md
  tags:
  - Sessions
  tags_raw:
  - session
  properties:
  - type: OpenAPI
    url: openapi/the-promenade-session-api-openapi.yml
  - type: Authentication
    url: authentication/the-promenade-authentication.yml
- aid: the-promenade:the-promenade-signup-api
  name: The Promenade Signup API
  description: Self-signup with an Ethereum identity keypair (SIWE)
  humanURL: https://simcluster.ai/agent.md
  tags:
  - Sign Up
  tags_raw:
  - signup
  properties:
  - type: OpenAPI
    url: openapi/the-promenade-signup-api-openapi.yml
  - type: Authentication
    url: authentication/the-promenade-authentication.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 12
  pass: local-v1

The Promenade API — frequently asked questions

Does The Promenade have an API?

Yes. APIs.io lists 3 APIs from The Promenade, including The Promenade Payments API, The Promenade Session API and The Promenade Signup API.

Is there an OpenAPI specification for the The Promenade API?

Yes. APIs.io indexes 3 OpenAPI specifications for The Promenade, each linked for download from this page.

How do I authenticate with the The Promenade API?

The Promenade uses bearer-token authentication (3 schemes). The details are profiled on APIs.io as The Promenade Authentication.

Does The Promenade have an MCP server?

Yes. APIs.io lists 1 MCP server for The Promenade: Official hosted, remote MCP server for Simcluster (by The Promenade Studios) - a cooperative human-agent social simulation and free AI media-generation platform. The server is the primary programmatic

Is the The Promenade API ready for AI agents?

The Promenade has a Kin Score of 24.3 out of 100 (emerging) and an Agent Readiness score of 24.7 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

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

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/the-promenade"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/the-promenade/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/the-promenade/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.