Staircase

Staircase, Inc. operates the Elephant Protocol (elephant.xyz), a decentralized property-data network that aggregates and cryptographically verifies fragmented county property and address records into trusted, agent-consumable data. It publishes 500,000+ enriched property data points and an unusually agent-native developer surface: a Model Context Protocol (MCP) server (@elephant-xyz/mcp, both stdio and hosted), an Elephant CLI (@elephant-xyz/cli) for oracle data transformation and on-chain proof submission to Polygon, a fact-sheet generator, and a library of 14 published Agent Skills for county-data ingestion. An Enterprise API is offered to organizations at scale. Backed by Bessemer Venture Partners; originally a mortgage-technology API company, now focused on real estate data infrastructure.

Staircase is profiled on the APIs.io network. Tagged areas include Company, Fintech, Real Estate, Property Data, and Data.

Staircase’s developer surface includes documentation, engineering blog, support, CLI, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

14.5/100 emerging ▬ flat Agent 12/100 agent aware Front door AI 2/6 trace Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

0 APIs 1 MCP Servers 2 Agent Skills

Company Fintech Real Estate Property Data Data MCP Agents Blockchain

Kin Score

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

Composite quality — 14.5/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 7.7 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.5 / 11

Contract Governance 0.5 / 10

Discoverability 5.0 / 9

Regulatory Posture 0.7 / 15

Agent readiness — 12/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 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 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 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points Ask about this →
Access Clarity scores 0.0 — up to +20.0 composite points Ask about this →
Operational Transparency scores 4.8 — up to +12.4 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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/staircase/apis.yml: open an issue on github.com/api-evangelist/staircase 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 (verified)

Agent Skills

measured — observed by APIs.io (published)

MCP Servers 1

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

Elephant MCP server

Exposes the Elephant property data graph — county datasets, oracle property records, JSON Schemas, geospatial lookups, and read-only SQL — to AI agents.

MCP SERVER

Agent Skills 2

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

county-discovery

AGENT SKILL

onboard-county

AGENT SKILL

Security Posture 1

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

Staircase Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

WellKnown

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 1

Authentication, authorization, and security posture

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 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: staircase
name: Staircase
description: 'Staircase, Inc. operates the Elephant Protocol (elephant.xyz), a decentralized property-data network that aggregates
  and cryptographically verifies fragmented county property and address records into trusted, agent-consumable data. It publishes
  500,000+ enriched property data points and an unusually agent-native developer surface: a Model Context Protocol (MCP) server
  (@elephant-xyz/mcp, both stdio and hosted), an Elephant CLI (@elephant-xyz/cli) for oracle data transformation and on-chain
  proof submission to Polygon, a fact-sheet generator, and a library of 14 published Agent Skills for county-data ingestion.
  An Enterprise API is offered to organizations at scale. Backed by Bessemer Venture Partners; originally a mortgage-technology
  API company, now focused on real estate data infrastructure.'
url: https://raw.githubusercontent.com/api-evangelist/staircase/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
image: https://www.staircase.co/favicon.ico
tags:
- Company
- Fintech
- Real Estate
- Property Data
- Data
- MCP
- Agents
- Blockchain
tags_raw:
- Company
- Fintech
- Real Estate
- Property Data
- Data
- MCP
- Agents
- Blockchain
- Real-Estate
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.staircase.co/
- type: DeveloperPortal
  url: https://elephant.xyz/
- type: Documentation
  url: https://github.com/elephant-xyz/docs
- type: GitHubOrganization
  url: https://github.com/elephant-xyz
- type: Blog
  url: https://www.staircase.co/blog
- type: Support
  url: https://discord.com/invite/elephant-xyz
- type: TermsOfService
  url: https://www.staircase.co/terms
- type: PrivacyPolicy
  url: https://www.staircase.co/privacy
- type: MCPServer
  name: Elephant MCP server
  url: mcp/staircase-mcp.yml
- type: Packages
  url: packages/staircase-packages.yml
- type: SDKs
  url: packages/staircase-packages.yml
- type: CLI
  url: cli/staircase-cli.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/staircase-domain-security.yml
- type: Conformance
  url: conformance/staircase-conformance.yml
- type: WellKnown
  url: well-known/staircase-well-known.yml
- type: LLMsTxt
  url: llms/staircase-llms.txt
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 8
  pass: local-v1

Staircase API — frequently asked questions

Does Staircase have an MCP server?

Yes. APIs.io lists 1 MCP server for Staircase: Exposes the Elephant property data graph — county datasets, oracle property records, JSON Schemas, geospatial lookups, and read-only SQL — to AI agents.

Is the Staircase API ready for AI agents?

Staircase has a Kin Score of 14.5 out of 100 (emerging) and an Agent Readiness score of 12.2 (agent-aware), 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.

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.

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