Carapace

Carapace (carapace.bot) is an open-source, Apache-2.0 secret broker for AI agents: "your agent uses the secret, never sees it." Secrets are sealed locally to a Cloud KMS key and decrypt only inside an attested AMD SEV Confidential VM running in the user's own GCP project; the enclave injects them into outbound requests only to hosts the secret's policy allows, redacts them from responses, and issues a signed receipt for every authorized use. Agents hold a Carapace API key and call through the carapace CLI. Self-hosted; the site labels it beta and not independently audited. Source is published at github.com/99darwin/carapace-oss.

Carapace is listed with 1 API on the APIs.io network. Tagged areas include Company, AI Agents, Secrets Management, Confidential Computing, and Security.

Carapace’s developer surface includes CLI, changelog, sandbox, authentication, API reference, documentation, getting-started guide, and 20 more developer resources.

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17.1/100 emerging Agent 3/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Company AI Agents Secrets Management Confidential Computing Security Open Source Google Cloud Self-Hosted

Kin Score

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

Composite quality — 17.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 3.2 / 17

Operational Transparency 4.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 0.9 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 7 / 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

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
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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

12 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 16.7 — up to +16.7 composite points
Access Clarity scores 18.9 — up to +16.2 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/carapace-bot/apis.yml: open an issue on github.com/api-evangelist/carapace-bot 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.

Carapace Server API

Self-hosted Carapace API. Per the project docs, the control-plane server (FastAPI on Cloud Run, default URL https://-server-..run.app) stores sealed secrets, API keys,

Pricing Plans 1

Published pricing tiers and plan structures.

Carapace Bot Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Carapace Bot Rate Limits

3 limits

RATE LIMITS

Security Posture 2

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

Carapace Bot Authentication

4 schemes

SECURITY

Carapace Bot Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Sandbox

Sandbox

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Idempotency

Conventions

Lifecycle

ErrorCatalog

Conformance

Build 5

SDKs, sample code, and the tooling you integrate with

CLI

IntegrationEdges

SDKs

Packages

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

Authentication

SecurityTxt

Security

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

License

License

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: carapace-bot
name: Carapace
description: 'Carapace (carapace.bot) is an open-source, Apache-2.0 secret broker for AI agents: "your agent uses the secret,
  never sees it." Secrets are sealed locally to a Cloud KMS key and decrypt only inside an attested AMD SEV Confidential VM
  running in the user''s own GCP project; the enclave injects them into outbound requests only to hosts the secret''s policy
  allows, redacts them from responses, and issues a signed receipt for every authorized use. Agents hold a Carapace API key
  and call through the carapace CLI. Self-hosted; the site labels it beta and not independently audited. Source is published
  at github.com/99darwin/carapace-oss.'
url: https://artifacts.apis.io/carapace-bot/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Company
- AI Agents
- Secrets Management
- Confidential Computing
- Security
- Open Source
- Google Cloud
- Self-Hosted
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://carapace.bot/opengraph-image?62bae02cd37b3990
common:
- type: RateLimits
  url: rate-limits/carapace-bot-rate-limits.yml
- type: Plans
  url: plans/carapace-bot-plans-pricing.yml
- type: CLI
  url: cli/carapace-bot-cli.yml
- type: ChangeLog
  url: changelog/carapace-bot-changelog.yml
- type: Idempotency
  url: conventions/carapace-bot-conventions.yml
- type: Conventions
  url: conventions/carapace-bot-conventions.yml
- type: Sandbox
  url: sandbox/carapace-bot-sandbox.yml
- type: Authentication
  url: authentication/carapace-bot-authentication.yml
- type: Lifecycle
  url: lifecycle/carapace-bot-lifecycle.yml
- type: ErrorCatalog
  url: errors/carapace-bot-problem-types.yml
- type: Conformance
  url: conformance/carapace-bot-conformance.yml
- type: SecurityTxt
  url: well-known/carapace-bot-vercel-security.txt
- type: WellKnown
  url: well-known/carapace-bot-well-known.yml
- type: Hosts
  url: hosts/carapace-bot-hosts.yml
- type: IntegrationEdges
  url: integrations/carapace-bot-integration-edges.yml
- type: Vendors
  url: vendors/carapace-bot-vendors.yml
- type: SDKs
  url: packages/carapace-bot-packages.yml
- type: Packages
  url: packages/carapace-bot-packages.yml
- type: APIReference
  url: https://vercel.com/llms.txt
- type: Website
  url: https://carapace.bot/
- type: Documentation
  url: https://github.com/99darwin/carapace-oss/tree/main/docs
- type: GettingStarted
  url: https://github.com/99darwin/carapace-oss/blob/main/docs/SELF_HOST.md
- type: GitHubOrganization
  url: https://github.com/99darwin/carapace-oss
- type: Support
  url: https://github.com/99darwin/carapace-oss/issues
- type: Security
  url: https://github.com/99darwin/carapace-oss/blob/main/SECURITY.md
- type: License
  url: https://github.com/99darwin/carapace-oss/blob/main/LICENSE
- type: DomainSecurity
  url: security/carapace-bot-domain-security.yml
apis:
- aid: carapace-bot:carapace-server-api
  name: Carapace Server API
  description: 'Self-hosted Carapace API. Per the project docs, the control-plane server (FastAPI on Cloud Run, default URL
    https://<prefix>-server-<project number>.<region>.run.app) stores sealed secrets, API keys, owner keys and receipts and
    serves GET /v1/kms/public-key, while agents and the CLI/SDK send requests over attested TLS to the enclave Confidential
    VM at https://<enclave ip>:8443 (GET /attestation). Every deployment runs in the user''s own GCP project, so there is
    no shared public host. No OpenAPI is published: the server exposes /openapi.json and /docs only when settings.mode ==
    "dev" (server/src/carapace_server/app.py).'
  humanURL: https://github.com/99darwin/carapace-oss/blob/main/docs/ARCHITECTURE.md
  baseURL: https://{prefix}-server-{projectNumber}.{region}.run.app
  tags:
  - Secrets Management
  - AI Agents
  - Self-Hosted
  properties:
  - type: Documentation
    url: https://github.com/99darwin/carapace-oss/blob/main/docs/ARCHITECTURE.md
  - type: GettingStarted
    url: https://github.com/99darwin/carapace-oss/blob/main/docs/SELF_HOST.md
x-coverage:
  state: covered
  reason: identity-verified
  detail: Name, description and image taken from carapace.bot title/meta; pointers are links on the carapace.bot homepage,
    each fetched 200. dev.carapace.bot redirects to a Vercel SSO login (private, not recorded). No TermsOfService, PrivacyPolicy,
    Pricing, Blog or StatusPage is published (the homepage "Status" label is a beta notice).
  evidence:
  - url: https://carapace.bot/
    status: 200
  - url: https://github.com/99darwin/carapace-oss
    status: 200
  - url: https://github.com/99darwin/carapace-oss/tree/main/docs
    status: 200
  - url: https://github.com/99darwin/carapace-oss/blob/main/docs/SELF_HOST.md
    status: 200
  - url: https://github.com/99darwin/carapace-oss/issues
    status: 200
  - url: https://github.com/99darwin/carapace-oss/blob/main/SECURITY.md
    status: 200
  - url: https://carapace.bot/opengraph-image?62bae02cd37b3990
    status: 200
  - url: https://dev.carapace.bot/
    status: 200
    note: redirects to vercel.com/login (SSO-protected)
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 23
  pass: modular-v1
  engine: identity=anthropic,contract=anthropic,surfaces=anthropic,docs=anthropic,regulatory=anthropic

Carapace API — frequently asked questions

Does Carapace have an API?

Yes. APIs.io lists 1 API from Carapace, including Carapace Server API.

How do I authenticate with the Carapace API?

Carapace documents its authentication (4 schemes). The details are profiled on APIs.io as Carapace Bot Authentication.

How much does the Carapace API cost?

APIs.io lists 1 pricing plan for Carapace, with each plan's price, limits and inclusions under Pricing on this page.

Is the Carapace API ready for AI agents?

Carapace has a Kin Score of 17.1 out of 100 (emerging) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-11-06.

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