FetchSandbox

FetchSandbox provides a verification factory for software changes, piloting a sandbox where teams can define deterministic verification rules, run failure injection, and get evidence receipts. It offers free integration engine and scoped team pilots to ensure code behaves as expected before shipping, supporting AI code verification, invariant testing, and workflow verification.

FetchSandbox is listed with 2 APIs on the APIs.io network. Tagged areas include Company, Verification, Sandbox, Artificial Intelligence, and Testing.

The FetchSandbox catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

FetchSandbox’s developer surface includes sandbox, pricing, engineering blog, getting-started guide, documentation, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

33.9/100 thin Agent 20/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

2 APIs

Company Verification Sandbox Artificial Intelligence Testing

Kin Score

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

Composite quality — 33.9/100 · thin

Contract Quality 5.7 / 21

Developer Ergonomics 6.5 / 17

Access Clarity 8.7 / 17

Operational Transparency 1.3 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 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 6 / 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):

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 →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 26.8 — up to +18.3 composite points Ask about this →
Developer Ergonomics scores 38.1 — up to +12.4 composite points Ask about this →
Operational Transparency scores 11.9 — up to +11.5 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/fetchsandbox-com/apis.yml: open an issue on github.com/api-evangelist/fetchsandbox-com 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 1

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)

APIs 2

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

FetchSandbox API

Verification API for FetchSandbox, providing endpoints to run verification pilots and retrieve results.

FetchSandbox API

FetchSandbox API as documented publicly: 98 operations. Contract generated from the documentation by API Evangelist (2026-11-07); not the provider's own document.

FetchSandbox API pricing

Prices published by FetchSandbox, read 2026-11-07 from fetchsandbox.com/pricing.

Plan	Price
Free	$0 per developer
Pro	$200 per workspace, per month
Team	$999 per month
Enterprise	Custom pricing

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

FetchSandbox Plans Pricing

4 plans

PLANS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Fetchsandbox Com Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Fetchsandbox Com Context

1 classes · 1 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

FetchSandbox API Rules

32 rules · 29 error-severity 2 warn-severity 1 info-severity

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

PostApiSandboxesRequest

1 properties

JSON SCHEMA

Security Posture 1

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

FetchSandbox Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Sandbox

Sandbox

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: fetchsandbox-com
name: FetchSandbox
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  probe_state: unreadable
  source:
  - plans
  - security
  - sandbox
  generated: '2026-11-13'
  method: derived
image: https://fetchsandbox.com/opengraph-image?9a6529620fdafb31
description: FetchSandbox provides a verification factory for software changes, piloting a sandbox where teams can define
  deterministic verification rules, run failure injection, and get evidence receipts. It offers free integration engine and
  scoped team pilots to ensure code behaves as expected before shipping, supporting AI code verification, invariant testing,
  and workflow verification.
url: https://artifacts.apis.io/fetchsandbox-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-07'
modified: '2026-11-07'
tags:
- Company
- Verification
- Sandbox
- Artificial Intelligence
- Testing
tags_raw:
- Company
- Verification
- Sandbox
- AI
- Testing
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/fetchsandbox-com-plans-pricing.yml
- type: Spectral
  url: rules/fetchsandbox-com-rules.yml
- type: JSONLD
  url: json-ld/fetchsandbox-com-context.jsonld
- type: Vocabulary
  url: vocabulary/fetchsandbox-com-vocabulary.yml
- type: Webhooks
  url: asyncapi/fetchsandbox-com-webhooks.yml
- type: DataModel
  url: data-model/fetchsandbox-com-data-model.yml
- type: Sandbox
  url: sandbox/fetchsandbox-com-sandbox.yml
- type: Conformance
  url: conformance/fetchsandbox-com-conformance.yml
- type: LLMsTxt
  url: llms/fetchsandbox-com-llms.txt
- type: Hosts
  url: hosts/fetchsandbox-com-hosts.yml
- type: Vendors
  url: vendors/fetchsandbox-com-vendors.yml
- type: SDKs
  url: packages/fetchsandbox-com-packages.yml
- type: Packages
  url: packages/fetchsandbox-com-packages.yml
- type: TermsOfService
  url: https://fetchsandbox.com/terms
- type: PrivacyPolicy
  url: https://fetchsandbox.com/privacy
- type: Pricing
  url: https://fetchsandbox.com/pricing
- type: GitHubOrganization
  url: https://github.com/fetchsandbox
- type: Blog
  url: https://fetchsandbox.com/blog
- type: GettingStarted
  url: https://fetchsandbox.com/faq
- type: DomainSecurity
  url: security/fetchsandbox-com-domain-security.yml
- type: Website
  url: https://fetchsandbox.com/
- type: Documentation
  url: https://fetchsandbox.com/docs
apis:
- name: FetchSandbox API
  description: Verification API for FetchSandbox, providing endpoints to run verification pilots and retrieve results.
  humanURL: https://fetchsandbox.com/docs
  aid: fetchsandbox-com:fetchsandbox-api
- aid: fetchsandbox-com:fetchsandbox-com-api
  name: FetchSandbox API
  description: 'FetchSandbox API as documented publicly: 98 operations. Contract generated from the documentation by API Evangelist
    (2026-11-07);

    not the provider''s own document.'
  humanURL: https://fetchsandbox.com/guides/mock-resend-api
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/fetchsandbox-com-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/fetchsandbox-com-post-api-sandboxes-request-schema.json
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Documentation is public but no OpenAPI, AsyncAPI, GraphQL, or other machine‑readable contract was found.
  evidence:
  - url: https://fetchsandbox.com/docs
    status: 200
  checked: '2026-11-07'
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 22
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

FetchSandbox API — frequently asked questions

Does FetchSandbox have an API?

Yes. APIs.io lists 2 APIs from FetchSandbox, including FetchSandbox API and FetchSandbox API.

Is there an OpenAPI specification for the FetchSandbox API?

Yes. APIs.io indexes 1 OpenAPI specification for FetchSandbox, each linked for download from this page.

How much does the FetchSandbox API cost?

FetchSandbox publishes its prices; its Free plan is $0 per developer as of 2026-11-07. APIs.io lists 4 pricing plans for FetchSandbox, with each plan's price, limits and inclusions under Pricing on this page.

Is the FetchSandbox API ready for AI agents?

FetchSandbox has a Kin Score of 33.9 out of 100 (thin) and an Agent Readiness score of 20.4 (agent-aware), scored by API Evangelist on 2026-11-13.

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