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 APIs on the APIs.io network, including Admin Keys API, Agent Logs API, API Keys API, and 32 more. Tagged areas include Company, Ai Ml, Agent Enablement, Agentic Development, and Developer Tools.
tessl.io’s developer surface includes authentication, changelog, CLI, documentation, API reference, getting-started guide, support, and 28 more developer resources.
Kin Score
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
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
tesslio-mcp.yml
MCP SERVERSecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 6
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type