OpenClasp

# OpenClasp

> Where agents connect, verify, and coordinate safely.

OpenClasp is a general-purpose assurance layer for agent-to-agent communication. It does not replace A2A, MCP, OAuth, or an agent framework. It adds signed identity and delegation, explicit interaction contracts, deterministic policy checks, evidence-backed clues, consented mediation, signed receipts, and task-specific behavioural history.

Gateway message bodies are encrypted at rest, deleted after acknowledgement, and expire after 24 hours. They never feed behavioural profiles or network intelligence. OpenClasp learns only from permitted structured events and verified outcomes.

## Five-minute quickstart

Requirements: Node.js 24+ and Corepack.

```bash

corepack pnpm install

corepack pnpm schemas

corepack pnpm test

corepack pnpm demo

```

Run the local API and dashboard:

```bash

corepack pnpm dev

```

- API: `http://localhost:3100`

- OpenAPI: `http://localhost:3100/openapi.json`

- Dashboard: `http://localhost:5173`

- MCP stdio server: `corepack pnpm mcp`

- Remote MCP after deployment: `https://<deployment>/mcp`

The remote MCP endpoint uses Auth0 OAuth. Install Auth0 through the Vercel Marketplace, configure

`AUTH0_DOMAIN`, `AUTH0_CLIENT_ID`, `AUTH0_AUDIENCE`, and `OPENCLASP_MCP_URL`, then enable Auth0's

Resource Parameter Compatibility Profile and Dynamic Client Registration. Compatible MCP clients

discover Auth0 through `/.well-known/oauth-protected-resource`, open hosted login and consent, and

retry with an audience-bound bearer token. The local stdio server remains available for development.

On first use, tell the connected agent to set itself up. It calls `openclasp_setup` with its project,

identity and capabilities. Approve the proposal once on the dashboard. OpenClasp creates the

agent's public A2A gateway endpoint automatically. That

single approval binds the installation, publishes its Agent Card, and enables the proposed safe-task

policy. One account can own multiple isolated projects and agents, and switching identities still

requires confirmation.

After setup, another agent only needs to call `openclasp_connect_to_agent` with a target and plain task.

OpenClasp infers conservative contract defaults. If the task matches the responder's owner-approved

categories, requests no shared data or human approval, and stays inside its capabilities, it activates

immediately and returns a ready-to-send A2A request. Anything sensitive, mismatched, or broader waits

for explicit approval. Both accounts always share one immutable contract record.

Every approved agent receives `https://openclasp.vercel.app/a2a/{agentId}` automatically. The MCP

adapter provides its inbox and send operations, so users do not host or configure an endpoint.

The hosted account application is available at `https://openclasp.vercel.app/login`. After signing

in, users can manage connected agents, review structured interaction history and signed receipts,

inspect task-specific behavioural profiles, copy the MCP connection URL, and control retention,

evidence sharing, and network-contribution consent. Hosted account records are isolated by the

validated Auth0 subject and stored in Neon Postgres. Gateway bodies live in a separate encrypted,

short-retention queue and are excluded from account history and reliability calculations.

OpenClasp's web login presents only Google and GitHub. Complete the one-time provider setup in

[`docs/SOCIAL_LOGIN_SETUP.md`](docs/SOCIAL_LOGIN_SETUP.md) before using it outside of testing.

The MCP server currently requires Auth0's `mcp:access` permission. Before a public beta, add and enforce

separate `profile:read`, `interaction:write`, `feedback:write`, `agent:manage`, and

`network:contribute` permissions in Auth0.

## What the demo proves

The deterministic demo creates requester/provider/subagent identities, verifies scoped delegation, signs a contract, sends an A2A-shaped message with the OpenClasp extension, keeps its raw body local, challenges a contradicted claim, blocks a deterministic violation, mediates with mutual consent, verifies bilateral feedback and receipts, updates task-specific history, and reduces confidence for a new agent version. It also rejects signature tampering, expired delegation, replay, and a tampered receipt.

## Packages

- `protocol`: schemas, canonical hashing, and Ed25519 signing.

- `core`: policy, lineage, facts, mediation, receipts, feedback, and behavioural profiles.

- `persistence`: local SQLite audit storage and hosted Neon Postgres account storage.

- `sdk`: HTTP client and local signed-object helpers.

- `sidecar`: A2A extension metadata verification, forwarding, and privacy filtering.

- `mcp-server`: 31 local tools and a hardened 30-tool hosted surface, including gateway inbox/send/ack; private-key generation remains local-only.

- `apps/api`, `apps/demo`, `apps/dashboard`: runnable surfaces.

## Quality gate

```bash

corepack pnpm format:check

corepack pnpm lint

corepack pnpm typecheck

corepack pnpm test

corepack pnpm build

corepack pnpm demo

```

This repository is Apache-2.0 licensed. Production identity proofing, cross-platform network intelligence, Sybil/collusion models, and private risk-model configuration are intentionally deferred.