Vijil

Vijil is an AI agent trust platform (Mayfield-backed, ~$23M raised) that helps enterprises make AI agents reliable, secure, and safe for production. Its Console API and CLI span four products across the agent lifecycle: Diamond (pre-deployment red-team evaluation that returns a Trust Score across reliability, security, and safety), Dome (runtime Guardrails, Guards, and Detectors that defend agent inputs/outputs), Darwin (reinforcement-learning evolution that continuously improves agents), and Depot (hardened models and a secure MCP proxy). The platform is programmable via a JWT-authenticated REST API, the `vijil` CLI, an official `vijil-mcp` MCP server, and Python SDKs.

Vijil publishes 5 API contracts indexed on the APIs.io network, including Agent Environment API, Diamond API, Dome API, and 2 more. Tagged areas include Company, Artificial Intelligence, AI Agents, Agent Security, and AI Safety.

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

Vijil’s developer surface includes pricing, documentation, API reference, getting-started guide, quickstart, engineering blog, signup flow, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

58.2/100 strong ▬ flat Agent 29/100 agent ready Front door AI 6/6 dominant Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreeSelf serve⚡ Free to try

1 published contract 1 MCP Servers 3 Agent Skills

Company Artificial Intelligence AI Agents Agent Security AI Safety Trust Red Teaming Guardrails LLM Security Evaluation Observability MCP

What this lets a business do 2

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

Information & Data Management

BC-610

Agent EnvironmentDiamond

PUT /v1/agent-configurations/{id} PUT /v1/agent-configurations/{id}/lifecycle

Cybersecurity Management

BC-620

Teams

Kin Score

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

Composite quality — 58.2/100 · strong

Contract Quality 9.2 / 19

Developer Ergonomics 10.3 / 15

Access Clarity 13.0 / 15

Operational Transparency 1.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.4 / 8

Regulatory Posture 4.1 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 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 0 / 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 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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

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)
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
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 48.8 — up to +12.8 composite points
Operational Transparency scores 13.2 — up to +11.3 composite points
Contract Governance scores 18.2 — up to +9.8 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/vijil/apis.yml: open an issue on github.com/api-evangelist/vijil 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
DigitalOcean Marketplace (partner 1-click apps and SaaS add-ons)	builds-on	51.7	-	-
Hugging Face Hub Organisations	builds-on	51.7	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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 5

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

Vijil Agent Environment API

Agent, persona, policy, and harness management

Vijil Diamond API

Evaluation management and report retrieval

Vijil Dome API

Protection, guardrails, and telemetry

Vijil Red Team API

Red team campaigns

Vijil Teams API

Authentication, users, and team management

Open Collections 28

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

Vijil Console API (Combined) agent-configurations API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations Agent Environment API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations agent-import API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations auth API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations custom-harnesses API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations dashboard API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations demographics API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations detections API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations Diamond API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations Dome API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations dome-configs API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations evaluation-results API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations evaluation-summaries API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations evaluations API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations evolution API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations genomes API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations harnesses API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations personas API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations policies API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations policy-rules API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations proposals API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations Red Team API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations redteam API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations Teams API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations Telemetry API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations Trust Runtime API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations users API

OPEN COLLECTION

Vijil Console API (Combined) agent-configurations webhooks API

OPEN COLLECTION

Scroll for all 28

MCP Servers 1

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

Vijil MCP Server

Official MCP server for the Vijil AI trust platform. Distributed as the `vijil-mcp` PyPI package, it exposes the Vijil Console CLI surface as MCP tools (stdio transport) for Cla...

MCP SERVER

Agent Skills 3

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

Evaluate an agent's trust score with Vijil

AGENT SKILL

Protect an agent at runtime with Vijil Dome

AGENT SKILL

Run an adversarial red-team campaign with Vijil

AGENT SKILL

Vijil API pricing

Prices published by Vijil, read 2026-10-07 from www.vijil.ai/pricing/.

Plan	Price
Open source	Nothing, forever Includes: Vijil Dome control engine under Apache-2.0; runs in your own process, bounded by your hardware; Disc
Hosted — free	Nothing Includes: Runs on console.vijil.ai at our cost; one agent — Discover any scale, Diamond one agent scored, Dome
Air-gapped	Flat, quoted once Includes: Runs in your VPC, datacenter, or no-egress network; no agent count, no token meter

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Vijil Plans Pricing

3 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Vijil

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Vijil Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Vijil API Rules

49 rules · 34 errors 11 warnings 4 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Vijil Openapi Overlay

3 actions · update · vijil-openapi-original.json

DERIVED

Security Posture 3

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

Vijil Authentication

http/cookie · 2 schemes

SECURITY

Vijil Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Vijil Trust Center

SOC 2

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Vijil Agentic Access

149 operations · 68 acting · 2 human-in-the-loop

149 operations · 68 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

Quickstart

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 6

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

AgentSkill

AgentSkill

AgentSkill

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

SourceCode

Packages

SDKs

CLI

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

Compliance

Authentication

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

Deprecation

Deprecation

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

Plans

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: vijil
name: Vijil
description: 'Vijil is an AI agent trust platform (Mayfield-backed, ~$23M raised) that helps enterprises make AI agents reliable,
  secure, and safe for production. Its Console API and CLI span four products across the agent lifecycle: Diamond (pre-deployment
  red-team evaluation that returns a Trust Score across reliability, security, and safety), Dome (runtime Guardrails, Guards,
  and Detectors that defend agent inputs/outputs), Darwin (reinforcement-learning evolution that continuously improves agents),
  and Depot (hardened models and a secure MCP proxy). The platform is programmable via a JWT-authenticated REST API, the `vijil`
  CLI, an official `vijil-mcp` MCP server, and Python SDKs.'
url: https://raw.githubusercontent.com/api-evangelist/vijil/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- mayfield
x-tier: active
x-tier-reason: enriched-real-api
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/691dbb7207c690a0037cbb28/69bd58689ec57361822b8672_VIJIL-OG.png
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: vercel
tags:
- Company
- Artificial Intelligence
- AI Agents
- Agent Security
- AI Safety
- Trust
- Red Teaming
- Guardrails
- LLM Security
- Evaluation
- Observability
- MCP
tags_raw:
- Company
- AI
- AI Agents
- Agent Security
- AI Safety
- Trust
- Red Teaming
- Guardrails
- LLM Security
- Evaluation
- Observability
- MCP
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: vijil:vijil-agent-environment-api
  name: Vijil Agent Environment API
  description: Agent, persona, policy, and harness management
  humanURL: https://docs.vijil.ai/
  baseURL: https://console-api.vijil.ai
  tags:
  - Agent Environment
  properties:
  - type: OpenAPI
    url: openapi/vijil-agent-environment-api-openapi.yml
  - type: APIReference
    url: https://docs.vijil.ai/api-reference
  - type: Documentation
    url: https://docs.vijil.ai/developer-guide/getting-started/introduction
- aid: vijil:vijil-diamond-api
  name: Vijil Diamond API
  description: Evaluation management and report retrieval
  humanURL: https://docs.vijil.ai/
  baseURL: https://console-api.vijil.ai
  tags:
  - Diamond
  properties:
  - type: OpenAPI
    url: openapi/vijil-diamond-api-openapi.yml
  - type: APIReference
    url: https://docs.vijil.ai/api-reference
  - type: Documentation
    url: https://docs.vijil.ai/developer-guide/getting-started/introduction
- aid: vijil:vijil-dome-api
  name: Vijil Dome API
  description: Protection, guardrails, and telemetry
  humanURL: https://docs.vijil.ai/
  baseURL: https://console-api.vijil.ai
  tags:
  - Dome
  properties:
  - type: OpenAPI
    url: openapi/vijil-dome-api-openapi.yml
  - type: APIReference
    url: https://docs.vijil.ai/api-reference
  - type: Documentation
    url: https://docs.vijil.ai/developer-guide/getting-started/introduction
- aid: vijil:vijil-red-team-api
  name: Vijil Red Team API
  description: Red team campaigns
  humanURL: https://docs.vijil.ai/
  baseURL: https://console-api.vijil.ai
  tags:
  - Red Team
  properties:
  - type: OpenAPI
    url: openapi/vijil-red-team-api-openapi.yml
  - type: APIReference
    url: https://docs.vijil.ai/api-reference
  - type: Documentation
    url: https://docs.vijil.ai/developer-guide/getting-started/introduction
- aid: vijil:vijil-teams-api
  name: Vijil Teams API
  description: Authentication, users, and team management
  humanURL: https://docs.vijil.ai/
  baseURL: https://console-api.vijil.ai
  tags:
  - Team
  tags_raw:
  - Teams
  properties:
  - type: OpenAPI
    url: openapi/vijil-teams-api-openapi.yml
  - type: APIReference
    url: https://docs.vijil.ai/api-reference
  - type: Documentation
    url: https://docs.vijil.ai/developer-guide/getting-started/introduction
common:
- type: Pricing
  url: https://www.vijil.ai/pricing/
- type: Plans
  url: plans/vijil-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/vijil-capability-edges.yml
  name: Vijil Business Capability Map
- type: DeveloperPortal
  url: https://docs.vijil.ai/
- type: Documentation
  url: https://docs.vijil.ai/developer-guide/getting-started/introduction
- type: APIReference
  url: https://docs.vijil.ai/api-reference
- type: GettingStarted
  url: https://docs.vijil.ai/developer-guide/agentic/quickstart
- type: Quickstart
  url: https://docs.vijil.ai/developer-guide/agentic/quickstart
- type: Blog
  url: https://www.vijil.ai/blog
- type: SignUp
  url: https://vijil.ai/try-vijil
- type: Support
  url: https://vijil.ai/contact-us
- type: TermsOfService
  url: https://vijil.ai/policies/terms-of-service
- type: PrivacyPolicy
  url: https://vijil.ai/policies/privacy-policy
- type: TrustCenter
  url: security/vijil-trust-center.yml
- type: Compliance
  url: https://vijil.ai/policies/trust-center
- type: SourceCode
  name: Hugging Face (open models)
  url: https://huggingface.co/vijil
- type: Packages
  url: packages/vijil-packages.yml
- type: SDKs
  url: packages/vijil-packages.yml
- type: CLI
  url: cli/vijil-cli.yml
- type: MCPServer
  url: mcp/vijil-mcp.yml
- type: LLMsTxt
  url: llms/vijil-llms.txt
- type: Authentication
  url: authentication/vijil-authentication.yml
- type: Conventions
  url: conventions/vijil-conventions.yml
- type: ErrorCatalog
  url: errors/vijil-problem-types.yml
- type: Lifecycle
  url: lifecycle/vijil-lifecycle.yml
- type: Deprecation
  url: https://docs.vijil.ai/developer-guide/reference/sdk-migration-guide
- type: Conformance
  url: conformance/vijil-conformance.yml
- type: DataModel
  url: data-model/vijil-data-model.yml
- type: Overlay
  url: overlays/vijil-openapi-overlay.yaml
- type: AgentSkill
  name: Evaluate an agent's trust score with Vijil
  url: skills/vijil-evaluate-agent-trust.md
- type: AgentSkill
  name: Protect an agent at runtime with Vijil Dome
  url: skills/vijil-protect-agent-dome.md
- type: AgentSkill
  name: Run an adversarial red-team campaign with Vijil
  url: skills/vijil-red-team-campaign.md
- type: AgenticAccess
  url: agentic-access/vijil-agentic-access.yml
- type: DomainSecurity
  url: security/vijil-domain-security.yml
- type: Website
  url: https://vijil.ai
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 19
  pass: local-v1

Vijil API — frequently asked questions

Does Vijil have an API?

Yes. APIs.io lists 5 APIs from Vijil, including Vijil Agent Environment API, Vijil Diamond API and Vijil Dome API, and 2 more.

Is there an OpenAPI specification for the Vijil API?

Yes. APIs.io indexes 5 OpenAPI specifications for Vijil, each linked for download from this page.

How do I authenticate with the Vijil API?

Vijil uses bearer-token authentication (http/cookie · 2 schemes). The details are profiled on APIs.io as Vijil Authentication.

How much does the Vijil API cost?

Vijil publishes its prices; its Open source plan is Nothing, forever as of 2026-10-07. APIs.io lists 3 pricing plans for Vijil, with each plan's price, limits and inclusions under Pricing on this page.

Does Vijil have an MCP server?

Yes. APIs.io lists 1 MCP server for Vijil: Official MCP server for the Vijil AI trust platform. Distributed as the `vijil-mcp` PyPI package, it exposes the Vijil Console CLI surface as MCP tools (stdio transport) for Claude Code and other MCP

Is the Vijil API ready for AI agents?

Vijil has a Kin Score of 58.2 out of 100 (strong) and an Agent Readiness score of 29.2 (agent-ready), 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.

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