Etch

Etch Onboarding API

Zero-signup path to a signed audit chain.

Documentation GitHub OpenAPI

Operations 1

POST /v1/your-project Mint an anonymous project + bearer token (free tier, 500 events, 14 days) #

Specifications

⚙

OpenAPI

https://artifacts.apis.io/etch-systems/openapi/etch-systems-onboarding-api-openapi.yml

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Etch public Onboarding API
  description: Signed audit chain for AI agent decisions, offline-verifiable against pinned public keys. Every event is signed with a hybrid Ed25519 + FIPS 205 SLH-DSA-SHA2-128f envelope, Merkle-chained into an epoch, and epoch-anchored on Sigstore Rekor + Bitcoin OpenTimestamps. This document covers only the unauthenticated integration surface; the admin API requires bearer authentication and is not published.
  version: 0.2.0
  license:
    name: BUSL-1.1
    url: https://spdx.org/licenses/BUSL-1.1.html
  contact:
    name: Etch
    url: https://etch.systems
    email: support@etch.systems
servers:
- url: https://etch.systems
  description: Production
tags:
- name: Onboarding
  description: Zero-signup path to a signed audit chain.
paths:
  /v1/your-project:
    post:
      summary: Mint an anonymous project + bearer token (free tier, 500 events, 14 days)
      description: 'Zero-signup path. Returns a bearer token, a project_id, and an mcp_endpoint URL. Use the token as Authorization: Bearer on every subsequent request to /mcp.'
      operationId: mintAnonymousProject
      tags:
      - Onboarding
      responses:
        '200':
          description: Anonymous project minted
          content:
            application/json:
              schema:
                type: object
                required:
                - project_id
                - token
                - mcp_endpoint
                properties:
                  project_id:
                    type: string
                    example: anon-abc123
                  token:
                    type: string
                    description: Bearer token with mcp:read + mcp:write scopes
                  mcp_endpoint:
                    type: string
                    format: uri
                    example: https://etch.systems/mcp
externalDocs:
  description: Full documentation
  url: https://etch.systems/docs