tessl.io

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.

tessl.io publishes 35 API contracts indexed on the APIs.io network, including Admin Keys API, Agent Logs API, API Keys API, and 32 more. Tagged areas include Company, Artificial Intelligence, Agent Enablement, Agentic Development, and Developer Tools.

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

tessl.io’s developer surface includes authentication, changelog, CLI, documentation, API reference, getting-started guide, support, and 31 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

59.5/100 strong ▬ flat Agent 40/100 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 →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers 2 Agent Skills

Company Artificial IntelligenceAgent EnablementAgentic Development Developer ToolsSkills RegistryMCPSpec-Driven DevelopmentCode Review CLI

What this lets a business do 3

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

Subscription Billing & Revenue Management

BC-4250

Billing

POST /v1/orgs/{orgId}/billing/checkout-sessions GET /v1/orgs/{orgId}/credits GET /v1/orgs/{orgId}/credits/usage

Software Product Engineering Management

BC-4200

Evals

GET /v1/tiles/{workspaceName}/{tileName}/versions/{version}/eval-suite POST /experimental/eval-runs-v2 POST /experimental/eval-scenarios/generate POST /experimental/eval-runs/{id}/retry

Cybersecurity Management

BC-620

Users

GET /v1/users POST /v1/users GET /v1/users/me GET /v1/users/me/invitations

Kin Score

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

Composite quality — 59.5/100 · strong

Contract Quality 9.0 / 19

Developer Ergonomics 11.0 / 15

Access Clarity 8.7 / 15

Operational Transparency 4.6 / 10

Contract Governance 1.6 / 9

Discoverability 5.4 / 8

Regulatory Posture 3.8 / 15

Create-or-Update Ergonomics 5.0 / 10

Agent readiness — 40/100 · 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 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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):

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)
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)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

5 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 47.8 — up to +13.1 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Access Clarity scores 57.9 — up to +8.4 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/tesslio/apis.yml: open an issue on github.com/api-evangelist/tesslio 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 3

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)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 35

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

tessl.io Admin Keys API

Admin-scoped API keys for support tooling.

tessl.io Agent Logs API

Agent and hosted-execution log uploads.

tessl.io API Keys API

Workspace and organization API keys.

tessl.io Badges API

Workspace badge generation.

tessl.io Billing API

The Billing API from tessl.io — 4 operation(s) for billing.

tessl.io Capacity API

Sandbox and capacity-lease scheduling.

tessl.io CLI API

Endpoints used by the Tessl CLI.

tessl.io Context API

The Context API from tessl.io — 3 operation(s) for context.

tessl.io Curated Lists API

Curated tile lists and items.

tessl.io Environments API

The Environments API from tessl.io — 2 operation(s) for environments.

tessl.io Evals API

Eval runs, scenarios, and solution scoring.

tessl.io Fix Runs API

The Fix Runs API from tessl.io — 4 operation(s) for fix runs.

tessl.io Generation API

Eval scenario generation runs.

tessl.io InstallPolicy API

The InstallPolicy API from tessl.io — 2 operation(s) for installpolicy.

tessl.io Integrations API

Third-party integrations (GitHub, GitLab, etc).

tessl.io Launch Runs API

The Launch Runs API from tessl.io — 4 operation(s) for launch runs.

tessl.io LLM API

The LLM API from tessl.io — 2 operation(s) for llm.

tessl.io ManagedProjectPolicy API

The ManagedProjectPolicy API from tessl.io — 1 operation(s) for managedprojectpolicy.

tessl.io MCP API

The MCP API from tessl.io — 4 operation(s) for mcp.

tessl.io Orgs API

Organizations, members, and invitations.

tessl.io Policy API

The Policy API from tessl.io — 3 operation(s) for policy.

tessl.io Projects API

Workspace projects.

tessl.io PublishPolicy API

The PublishPolicy API from tessl.io — 1 operation(s) for publishpolicy.

tessl.io Repos API

Source-control repository helpers.

tessl.io Review Runs API

The Review Runs API from tessl.io — 3 operation(s) for review runs.

tessl.io Reviews API

The Reviews API from tessl.io — 3 operation(s) for reviews.

tessl.io Search API

Search across tiles, skills, and repos.

tessl.io Security Review Runs API

The Security Review Runs API from tessl.io — 2 operation(s) for security review runs.

tessl.io SkillInventory API

The SkillInventory API from tessl.io — 24 operation(s) for skillinventory.

tessl.io Skills API

Skill discovery, reviews, and security checks.

tessl.io Tasks API

The Tasks API from tessl.io — 8 operation(s) for tasks.

tessl.io Tiles API

Tile catalog, versions, and metadata.

tessl.io Users API

User accounts and identity.

tessl.io Workflows API

Background workflow executions and repository workflow configs.

tessl.io Workspaces API

Workspaces and workspace membership.

Scroll for all 35

Open Collections 32

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

Tessl Admin Keys API

OPEN COLLECTION

Tessl Admin Keys Agent Logs API

OPEN COLLECTION

Tessl Admin Keys API Keys API

OPEN COLLECTION

Tessl Admin Keys Badges API

OPEN COLLECTION

Tessl Admin Keys Billing API

OPEN COLLECTION

Tessl Admin Keys Capacity API

OPEN COLLECTION

Tessl Admin Keys CLI API

OPEN COLLECTION

Tessl Admin Keys Context API

OPEN COLLECTION

Tessl Admin Keys Curated Lists API

OPEN COLLECTION

Tessl Admin Keys Environments API

OPEN COLLECTION

Tessl Admin Keys Evals API

OPEN COLLECTION

Tessl Admin Keys Fix Runs API

OPEN COLLECTION

Tessl Admin Keys Generation API

OPEN COLLECTION

Tessl Admin Keys InstallPolicy API

OPEN COLLECTION

Tessl Admin Keys Integrations API

OPEN COLLECTION

Tessl Admin Keys Launch Runs API

OPEN COLLECTION

Tessl Admin Keys LLM API

OPEN COLLECTION

Tessl Admin Keys ManagedProjectPolicy API

OPEN COLLECTION

Tessl Admin Keys MCP API

OPEN COLLECTION

Tessl Admin Keys Orgs API

OPEN COLLECTION

Tessl Admin Keys Policy API

OPEN COLLECTION

Tessl Admin Keys Projects API

OPEN COLLECTION

Tessl Admin Keys PublishPolicy API

OPEN COLLECTION

Tessl Admin Keys Repos API

OPEN COLLECTION

Tessl Admin Keys Search API

OPEN COLLECTION

Tessl Admin Keys SkillInventory API

OPEN COLLECTION

Tessl Admin Keys Skills API

OPEN COLLECTION

Tessl Admin Keys Tasks API

OPEN COLLECTION

Tessl Admin Keys Tiles API

OPEN COLLECTION

Tessl Admin Keys Users API

OPEN COLLECTION

Tessl Admin Keys Workflows API

OPEN COLLECTION

Tessl Admin Keys Workspaces API

OPEN COLLECTION

Scroll for all 32

MCP Servers 1

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

tessl.io MCP Server

MCP SERVER

Agent Skills 2

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

Search and install plugins from the Tessl registry

AGENT SKILL

Author and publish a Tessl skill

AGENT SKILL

tessl.io API pricing

Prices published by tessl.io, read 2026-09-20 from tessl.io/pricing.

Plan	Price
Free	$0/ month Includes: 1,000 credits included each month
Team	$100/ month Includes: Included credits each month 5,000
Enterprise	Custom Includes: Volume bundles

Plan details, limits and sources →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Tesslio Plans Pricing

3 plans

PLANS

Tesslio Price Estimates

0 plans

PLANS

Service Levels 1

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

tessl.io

SLA

FinOps 1

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

Tesslio Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

tessl.io API Rules

44 rules · 29 errors 13 warnings 2 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.

Tesslio Openapi Overlay

3 actions · security · tesslio-openapi-original.json

DERIVED

Security Posture 4

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

Tesslio Authentication

http-bearer/apiKey/oauth2 · 4 schemes

SECURITY

Tesslio Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Tesslio Vulnerability Disclosure

security.txt · contact published

SECURITY

Tesslio Trust Center

trust center published

SECURITY

Agentic Access 1

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

Tesslio Agentic Access

225 operations · 111 acting · 19 human-in-the-loop

225 operations · 111 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Registry

Documentation 3

Reference material describing how the API behaves

OpenAPI

OpenAPI

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

AgenticAccess

WellKnown

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Conformance

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

CLI

CLI

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

Authentication

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

DomainSecurity

DomainSecurity

TrustCenter

TrustCenter

Operate 4

Status, limits, changes, and where to get help

StatusPage

Deprecation

ChangeLog

Support

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 3

The organization behind the API

BlogRSS

BlogRSS

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

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
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://cdn.sanity.io/images/ojuglg5y/production/fa12cfb35dd51f280b764adf7122a6c0f7911e12-2400x1260.png?w=1200&fit=max&auto=format
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
tags:
- Company
- Artificial Intelligence
- Agent Enablement
- Agentic Development
- Developer Tools
- Skills Registry
- MCP
- Spec-Driven Development
- Code Review
- CLI
tags_raw:
- 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:
  - APIKeys
  tags_raw:
  - 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:
  - Environment
  tags_raw:
  - 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:
  - Integration
  tags_raw:
  - 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:
  - Organization
  tags_raw:
  - 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:
  - Project
  tags_raw:
  - 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:
  - Task
  tags_raw:
  - 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:
  - User
  tags_raw:
  - 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:
  - Workspace
  tags_raw:
  - 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:
- url: https://tessl.io/blog/feed
  type: BlogRSS
- type: Plans
  url: plans/tesslio-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/tesslio-capability-edges.yml
  name: tessl.io Business Capability Map
- 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

tessl.io API — frequently asked questions

Does tessl.io have an API?

Yes. APIs.io lists 35 APIs from tessl.io, including tessl.io Admin Keys API, tessl.io Agent Logs API and tessl.io API Keys API, and 32 more.

Is there an OpenAPI specification for the tessl.io API?

Yes. APIs.io indexes 35 OpenAPI specifications for tessl.io, each linked for download from this page.

How do I authenticate with the tessl.io API?

tessl.io uses bearer-token authentication (http-bearer/apiKey/oauth2 · 4 schemes). The details are profiled on APIs.io as Tesslio Authentication.

How much does the tessl.io API cost?

tessl.io publishes its prices; its Free plan is $0/ month as of 2026-09-20. APIs.io lists 3 pricing plans for tessl.io, with each plan's price, limits and inclusions under Pricing on this page.

Does tessl.io have an MCP server?

Yes. APIs.io lists 1 MCP server for tessl.io.

Is the tessl.io API ready for AI agents?

tessl.io has a Kin Score of 59.5 out of 100 (strong) and an Agent Readiness score of 39.5 (agent-ready), scored by API Evangelist on 2026-11-06.

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