# SCRIPTMASTERLABS A2A Discovery Bridge

Provider: SCRIPTMASTERLABS
Legal entity: Script Master Labs, LLC
Canonical bridge: https://scriptmasterlabs.com/a2a-discovery-bridge
Machine manifest: https://scriptmasterlabs.com/.well-known/a2a-discovery.json
x402 discovery metadata: https://scriptmasterlabs.com/.well-known/a2a-x402.json

## A2A V1

Protocol version:
1.0

Binding:
JSONRPC

A2A endpoint:
https://scriptmasterlabs.com/api/a2a

Canonical Agent Card:
https://scriptmasterlabs.com/.well-known/agent-card.json

Runtime Agent Card mirror:
https://squeezeos-api.onrender.com/.well-known/agent-card.json

Boundary:
The A2A control plane is read-only. It discovers, inspects and routes but does not sign, submit, settle or authorize payments. Paid execution remains on canonical x402 v2 HTTP resources and their fresh PAYMENT-REQUIRED challenges. A2A discovery alone does not imply AP2 or official A2A-x402 payment-extension compatibility.

## FREE DISCOVERY

Intent resolver:
https://scriptmasterlabs.com/api/agentroutes?intent={url_encoded_intent}

Canonical runtime:
https://squeezeos-api.onrender.com/api/agent-routes/discover

Intent graph authority:
https://scriptmasterlabs.com/.well-known/product-intents.json

Current route authority:
https://scriptmasterlabs.com/.well-known/route-authority.json

Current products:
https://scriptmasterlabs.com/.well-known/current-products.json

Service directory:
https://scriptmasterlabs.com/.well-known/sml-services.json

## PAID SCHEMA SYNCHRONIZATION

Contract:
https://squeezeos-api.onrender.com/api/canon/info

Endpoint:
POST https://squeezeos-api.onrender.com/api/canon/batch

Purpose:
Resolve up to 100 schema/artifact identifiers against current registry and publisher evidence so an external agent can update its own local cache or registry.

Displayed price:
0.01 USDC per accepted batch, subject to the fresh endpoint PAYMENT-REQUIRED challenge.

Rail:
x402 v2 · Base mainnet eip155:8453 · USDC

Canonical SqueezeOS payTo:
0x5bbd32e0478e49a7540ef2d760e0b0f9aa6328b2

## SAFETY / TRUTH BOUNDARY

The bridge never signs for the caller, never auto-spends, never mutates the caller's system, and never treats discovery as proof of demand or payment.
A 402 challenge is not payment.
A signature is authorization, not settlement.
Settlement alone is not accepted delivery.
Fresh execution-origin evidence overrides cached metadata.

## SEO / GEO BUILD STANDARD
Building or editing any page? Read https://scriptmasterlabs.com/agent.md (section "SEO / GEO build standard") first.
Brand law: clone winners' structures, never their look — buttons, badges, dark/neon identity, and SDVOSB signals stay.