caliper-fit

Caliper provides a Geometry and CAD file metadata extraction API. It accepts 3D geometry files via URL or base64 and returns structured statistics such as bounding boxes, triangle counts, manifold analysis, point cloud statistics, and more. Files under 150KB are processed for free, while larger files are billed at $0.02 per MB with optional card surcharge. The service operates as an MCP server with no signup required, supporting formats like STL, OBJ, PLY, PCD, LAS/LAZ, and glTF/GLB, with upcoming support for STEP and IGES.

caliper-fit is listed with 1 API on the APIs.io network. Tagged areas include Company, Geometry, CAD, Metadata, and API.

caliper-fit’s developer surface includes API reference and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

11.6/100 emerging Agent 5/100 human only Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API 1 MCP Servers

Company Geometry CAD MetadataAPIMCP

Kin Score

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

Composite quality — 11.6/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.7 / 10

Discoverability 5.2 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 5/100 · human only

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 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 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

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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

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
Developer Ergonomics scores 7.1 — up to +18.6 composite points
Access Clarity scores 10.5 — up to +17.9 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/caliper-fit/apis.yml: open an issue on github.com/api-evangelist/caliper-fit 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 1

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

Caliper API

Geometry and CAD file metadata extraction API.

MCP Servers 1

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

caliper-fit MCP Server

Remote MCP server at caliper.fit.

MCP SERVER

Security Posture 1

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

Caliper Fit Domain Security

TLSv1.3

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Source (apis.yml)

aid: caliper-fit
name: caliper-fit
description: Caliper provides a Geometry and CAD file metadata extraction API. It accepts 3D geometry files via URL or base64
  and returns structured statistics such as bounding boxes, triangle counts, manifold analysis, point cloud statistics, and
  more. Files under 150KB are processed for free, while larger files are billed at $0.02 per MB with optional card surcharge.
  The service operates as an MCP server with no signup required, supporting formats like STL, OBJ, PLY, PCD, LAS/LAZ, and
  glTF/GLB, with upcoming support for STEP and IGES.
url: https://artifacts.apis.io/caliper-fit/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Company
- Geometry
- CAD
- Metadata
- API
- MCP
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Conformance
  url: conformance/caliper-fit-conformance.yml
- type: LLMsTxt
  url: llms/caliper-fit-llms.txt
- type: AgentCard
  url: a2a/caliper-fit-a2a.yml
- type: MCPServer
  url: mcp/caliper-fit-mcp.yml
- type: WellKnown
  url: well-known/caliper-fit-well-known.yml
- type: Hosts
  url: hosts/caliper-fit-hosts.yml
- type: DomainSecurity
  url: security/caliper-fit-domain-security.yml
- type: Website
  url: https://caliper.fit/
- type: APIReference
  url: https://caliper.fit/mcp/manifest
- type: PrivacyPolicy
  url: https://caliper.fit/privacy
apis:
- name: Caliper API
  description: Geometry and CAD file metadata extraction API.
  humanURL: https://caliper.fit/mcp/manifest
  baseURL: https://caliper.fit
  aid: caliper-fit:caliper-api
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 14
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

caliper-fit API — frequently asked questions

Does caliper-fit have an API?

Yes. APIs.io lists 1 API from caliper-fit, including Caliper API.

Does caliper-fit have an MCP server?

Yes. APIs.io lists 1 MCP server for caliper-fit: Remote MCP server at caliper.fit.

Is the caliper-fit API ready for AI agents?

caliper-fit has a Kin Score of 11.6 out of 100 (emerging) and an Agent Readiness score of 4.5 (human-only), scored by API Evangelist on 2026-10-31.

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