tessl.io

aid: tesslio
name: tessl.io
description: Tessl is an agent-enablement platform for spec-driven and agentic software development. It provides a registry
  of versioned "tiles"/plugins (10,000+ library docs) and 3,000+ searchable Agent Skills, a CLI for authoring, linting, reviewing,
  and publishing skills and plugins, server-side quality reviews and Snyk-powered security scanning, eval/scenario tooling
  to prove a skill changes agent behavior, org/workspace governance with install policies, and a first-party Model Context
  Protocol (MCP) server plus a workspace MCP gateway so AI coding agents can discover and install the right context. Backed
  by Index Ventures. The public REST API (api.tessl.io) exposes 225 operations across tiles, skills, workspaces, orgs, projects,
  evals, and integrations.
url: https://raw.githubusercontent.com/api-evangelist/tesslio/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- index-ventures
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://cdn.sanity.io/images/ojuglg5y/production/fa12cfb35dd51f280b764adf7122a6c0f7911e12-2400x1260.png?w=1200&fit=max&auto=format
tags:
- Company
- Ai Ml
- Agent Enablement
- Agentic Development
- Developer Tools
- Skills Registry
- Model Context Protocol
- Spec-Driven Development
- Code Review
- CLI
apis:
- aid: tesslio:tesslio-admin-keys-api
  name: tessl.io Admin Keys API
  description: Admin-scoped API keys for support tooling.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Admin Keys
  properties:
  - type: OpenAPI
    url: openapi/tesslio-admin-keys-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-agent-logs-api
  name: tessl.io Agent Logs API
  description: Agent and hosted-execution log uploads.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Agent Logs
  properties:
  - type: OpenAPI
    url: openapi/tesslio-agent-logs-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-api-keys-api
  name: tessl.io API Keys API
  description: Workspace and organization API keys.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - API Keys
  properties:
  - type: OpenAPI
    url: openapi/tesslio-api-keys-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-badges-api
  name: tessl.io Badges API
  description: Workspace badge generation.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Badges
  properties:
  - type: OpenAPI
    url: openapi/tesslio-badges-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-billing-api
  name: tessl.io Billing API
  description: The Billing API from tessl.io — 4 operation(s) for billing.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/tesslio-billing-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-capacity-api
  name: tessl.io Capacity API
  description: Sandbox and capacity-lease scheduling.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Capacity
  properties:
  - type: OpenAPI
    url: openapi/tesslio-capacity-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-cli-api
  name: tessl.io CLI API
  description: Endpoints used by the Tessl CLI.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - CLI
  properties:
  - type: OpenAPI
    url: openapi/tesslio-cli-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-context-api
  name: tessl.io Context API
  description: The Context API from tessl.io — 3 operation(s) for context.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Context
  properties:
  - type: OpenAPI
    url: openapi/tesslio-context-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-curated-lists-api
  name: tessl.io Curated Lists API
  description: Curated tile lists and items.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Curated Lists
  properties:
  - type: OpenAPI
    url: openapi/tesslio-curated-lists-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-environments-api
  name: tessl.io Environments API
  description: The Environments API from tessl.io — 2 operation(s) for environments.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Environments
  properties:
  - type: OpenAPI
    url: openapi/tesslio-environments-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-evals-api
  name: tessl.io Evals API
  description: Eval runs, scenarios, and solution scoring.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Evals
  properties:
  - type: OpenAPI
    url: openapi/tesslio-evals-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-fix-runs-api
  name: tessl.io Fix Runs API
  description: The Fix Runs API from tessl.io — 4 operation(s) for fix runs.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Fix Runs
  properties:
  - type: OpenAPI
    url: openapi/tesslio-fix-runs-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-generation-api
  name: tessl.io Generation API
  description: Eval scenario generation runs.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Generation
  properties:
  - type: OpenAPI
    url: openapi/tesslio-generation-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-installpolicy-api
  name: tessl.io InstallPolicy API
  description: The InstallPolicy API from tessl.io — 2 operation(s) for installpolicy.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - InstallPolicy
  properties:
  - type: OpenAPI
    url: openapi/tesslio-installpolicy-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-integrations-api
  name: tessl.io Integrations API
  description: Third-party integrations (GitHub, GitLab, etc).
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Integrations
  properties:
  - type: OpenAPI
    url: openapi/tesslio-integrations-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-launch-runs-api
  name: tessl.io Launch Runs API
  description: The Launch Runs API from tessl.io — 4 operation(s) for launch runs.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Launch Runs
  properties:
  - type: OpenAPI
    url: openapi/tesslio-launch-runs-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-llm-api
  name: tessl.io LLM API
  description: The LLM API from tessl.io — 2 operation(s) for llm.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - LLM
  properties:
  - type: OpenAPI
    url: openapi/tesslio-llm-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-managedprojectpolicy-api
  name: tessl.io ManagedProjectPolicy API
  description: The ManagedProjectPolicy API from tessl.io — 1 operation(s) for managedprojectpolicy.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - ManagedProjectPolicy
  properties:
  - type: OpenAPI
    url: openapi/tesslio-managedprojectpolicy-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-mcp-api
  name: tessl.io MCP API
  description: The MCP API from tessl.io — 4 operation(s) for mcp.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - MCP
  properties:
  - type: OpenAPI
    url: openapi/tesslio-mcp-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-orgs-api
  name: tessl.io Orgs API
  description: Organizations, members, and invitations.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Orgs
  properties:
  - type: OpenAPI
    url: openapi/tesslio-orgs-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-policy-api
  name: tessl.io Policy API
  description: The Policy API from tessl.io — 3 operation(s) for policy.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Policy
  properties:
  - type: OpenAPI
    url: openapi/tesslio-policy-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-projects-api
  name: tessl.io Projects API
  description: Workspace projects.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/tesslio-projects-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-publishpolicy-api
  name: tessl.io PublishPolicy API
  description: The PublishPolicy API from tessl.io — 1 operation(s) for publishpolicy.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - PublishPolicy
  properties:
  - type: OpenAPI
    url: openapi/tesslio-publishpolicy-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-repos-api
  name: tessl.io Repos API
  description: Source-control repository helpers.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Repos
  properties:
  - type: OpenAPI
    url: openapi/tesslio-repos-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-review-runs-api
  name: tessl.io Review Runs API
  description: The Review Runs API from tessl.io — 3 operation(s) for review runs.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Review Runs
  properties:
  - type: OpenAPI
    url: openapi/tesslio-review-runs-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-reviews-api
  name: tessl.io Reviews API
  description: The Reviews API from tessl.io — 3 operation(s) for reviews.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Reviews
  properties:
  - type: OpenAPI
    url: openapi/tesslio-reviews-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-search-api
  name: tessl.io Search API
  description: Search across tiles, skills, and repos.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/tesslio-search-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-security-review-runs-api
  name: tessl.io Security Review Runs API
  description: The Security Review Runs API from tessl.io — 2 operation(s) for security review runs.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Security Review Runs
  properties:
  - type: OpenAPI
    url: openapi/tesslio-security-review-runs-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-skillinventory-api
  name: tessl.io SkillInventory API
  description: The SkillInventory API from tessl.io — 24 operation(s) for skillinventory.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - SkillInventory
  properties:
  - type: OpenAPI
    url: openapi/tesslio-skillinventory-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-skills-api
  name: tessl.io Skills API
  description: Skill discovery, reviews, and security checks.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Skills
  properties:
  - type: OpenAPI
    url: openapi/tesslio-skills-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-tasks-api
  name: tessl.io Tasks API
  description: The Tasks API from tessl.io — 8 operation(s) for tasks.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/tesslio-tasks-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-tiles-api
  name: tessl.io Tiles API
  description: Tile catalog, versions, and metadata.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Tiles
  properties:
  - type: OpenAPI
    url: openapi/tesslio-tiles-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-users-api
  name: tessl.io Users API
  description: User accounts and identity.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/tesslio-users-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-workflows-api
  name: tessl.io Workflows API
  description: Background workflow executions and repository workflow configs.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Workflows
  properties:
  - type: OpenAPI
    url: openapi/tesslio-workflows-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
- aid: tesslio:tesslio-workspaces-api
  name: tessl.io Workspaces API
  description: Workspaces and workspace membership.
  humanURL: https://docs.tessl.io/
  baseURL: https://api.tessl.io
  tags:
  - Workspaces
  properties:
  - type: OpenAPI
    url: openapi/tesslio-workspaces-api-openapi.yml
  - type: APIReference
    url: https://api.tessl.io/docs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: OpenAPI
  url: openapi/_original/tesslio-openapi-original.json
- type: Overlay
  url: overlays/tesslio-openapi-overlay.yaml
- type: Authentication
  url: authentication/tesslio-authentication.yml
- type: Conventions
  url: conventions/tesslio-conventions.yml
- type: ErrorCatalog
  url: errors/tesslio-problem-types.yml
- type: DataModel
  url: data-model/tesslio-data-model.yml
- type: Conformance
  url: conformance/tesslio-conformance.yml
- type: Lifecycle
  url: lifecycle/tesslio-lifecycle.yml
- type: StatusPage
  url: https://status.tessl.io
- type: Deprecation
  url: https://docs.tessl.io/changelog
- type: ChangeLog
  url: changelog/tesslio-changelog.yml
- type: CLI
  url: cli/tesslio-cli.yml
- type: Packages
  url: packages/tesslio-packages.yml
- type: SDKs
  url: packages/tesslio-packages.yml
- type: MCPServer
  url: mcp/tesslio-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/tesslio-agentic-access.yml
- type: WellKnown
  url: well-known/tesslio-well-known.yml
- type: SecurityTxt
  url: well-known/tesslio-security.txt
- type: VulnerabilityDisclosure
  url: security/tesslio-vulnerability-disclosure.yml
- type: Security
  url: https://tessl.io/.well-known/security.txt
- type: DomainSecurity
  url: security/tesslio-domain-security.yml
- type: TrustCenter
  url: https://trust.tessl.io
- type: DeveloperPortal
  url: https://docs.tessl.io/
- type: Documentation
  url: https://docs.tessl.io/
- type: APIReference
  url: https://api.tessl.io/docs
- type: GettingStarted
  url: https://docs.tessl.io/introduction-to-tessl/set-up-tessl
- type: LLMsTxt
  url: llms/tesslio-llms.txt
- type: Support
  url: https://docs.tessl.io/support/faqs
- type: Blog
  url: https://tessl.io/blog
- type: GitHubOrganization
  url: https://github.com/tesslio
- type: Pricing
  url: https://tessl.io/pricing
- type: SignUp
  url: https://app.tessl.io
- type: Registry
  url: https://tessl.io/registry
- type: Website
  url: https://tessl.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 22
  pass: local-v1