Peer

peer-cli

The canonical agent interface for Peer: one JSON-first CLI, local and hosted MCP servers, and one generated contract for protocol, indexer, market, checkout, and Peer Cash workflows.

• Docs and agent-readable text: https://agents.peer.xyz
• Exact CLI schemas: agents/tool-catalog.json
• Error contract: agents/error-catalog.json
• Runtime profiles and counts: agents/runtime-manifest.json

The generated files come from the runtime registries. Do not hand-maintain a second command list in documentation.

Install

Node.js 22 or newer is required.

The package is peer-protocol-cli; do not install the unrelated unscoped peer-cli package.

npm install --global [email protected]
peer --help

Run without a global install:

npx -y [email protected] quote --from USD --amount 100 --platform wise

Successful output is JSON by default. Errors always use the canonical JSON error envelope on stderr. --format table changes successful human-facing output only.

Safety model

Read commands execute immediately. Commands that can mutate state return a transaction or API preview first and execute only when the process receives --yes.

Signer material resolves from PEER_PRIVATE_KEY or --wallet-path. Passing a private key on the command line is supported but visible in process listings; prefer the environment or an owner-readable wallet file. Persistent config and checkout caches are written with owner-only permissions.

Never start a write-capable MCP process with --yes unless every write tool in that process is intentionally allowed to broadcast without a second CLI preview.

MCP profiles

peer mcp requires one of three explicit profiles:

• read-only — default protocol reads plus Peer Cash reads. No signing or broadcasting.
• cash — the complete custody-separated peer_cash_* surface. It prepares unsigned transaction plans but never accepts a private key, signs, or broadcasts.
• full — every generic CLI-backed MCP tool plus Peer Cash. Generic write tools still preview unless the MCP process was started with global --yes.

The current tool counts are generated in agents/runtime-manifest.json.

{
  "mcpServers": {
    "peer": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]",
        "mcp",
        "--profile",
        "read-only"
      ]
    }
  }
}

Use --profile cash for the portable Peer Cash workflow or --profile full for the complete operator surface.

The hosted MCP server exposes only the read-only profile over Streamable HTTP:

https://mcp.peer.xyz/mcp

Run the same transport yourself with peer mcp --transport http. HTTP refuses the cash and full profiles; those authority-bearing profiles remain local stdio processes.

Peer Cash

The retired standalone peer-cash-mcp server now lives here. Its tool names and custody boundary are unchanged:

1. peer_cash_capabilities / peer_cash_source_capabilities — fetch live payout rails and Relay-supported source chains and tokens.
2. peer_cash_fill_stats / peer_cash_buyer — inspect historical fill evidence and buyer protocol history.
3. peer_cash_quote_source / peer_cash_relay_status — quote and track a cross-chain route into Base USDC without granting signer authority.
4. peer_cash_estimate — estimate fiat received at the current oracle rate.
5. peer_cash_prepare — return ordered unsigned approval and deposit transactions.
6. peer_cash_finalize — resolve a confirmed receipt into a durable depositId.
7. peer_cash_order / peer_cash_orders — resume and inspect orders.
8. peer_cash_prepare_access_policy, peer_cash_prepare_withdraw, and peer_cash_prepare_top_up — prepare follow-up transactions.

Base USDC amounts are decimal strings in 6-decimal base units: 100 USDC is 100000000. Estimates are not locked quotes; the binding Chainlink rate resolves when a buyer fills.

Install the packaged portable skill from skills/peer-cash/SKILL.md when the agent host supports Agent Skills.

Configuration

Configuration resolves in this order:

1. CLI flags
2. environment variables
3. ~/.peer/config.json
4. runtime defaults

Common settings:

• PEER_ENV: production, preproduction, or staging
• PEER_PRIVATE_KEY / PEER_WALLET_PATH: signer material for generic write commands
• PEER_RPC_URL: Base RPC override
• PEER_API_KEY: Curator API key when required
• PEER_INDEXER_API_KEY / PEER_INDEXER_URL: indexer overrides
• PEER_MARKET_API_KEY / PEER_MARKET_BASE_URL: Peerlytics access
• PEER_PAY_API_KEY / PEER_PAY_BASE_URL: hosted checkout access
• PEER_BASE_API_URL: Curator override. Defaults follow PEER_ENV: api.zkp2p.xyz, api-preprod.zkp2p.xyz, or api-staging.zkp2p.xyz.
• PEER_CASH_RPC_URL, PEER_CASH_API_KEY, PEER_CASH_REFERRAL_CODE, and PEER_CASH_REFERRER: cash-profile overrides

Use peer config show, set, unset, and reset for persistent local settings. peer config show masks secret values. Prefer environment variables for credentials.

Command families

The CLI covers:

• quotes, payee registration, and payee-hash resolution
• deposit lifecycle, payment methods, currencies, oracle configuration, and batch updates
• intents, pre-intent hooks, fulfillment, release, and cleanup
• StakeVault deposits, withdrawals, authorization, indexed freshness, and matured chargeback releases
• IntentGuardian policy, live extension quotes, payer funding, and preview-first intent extension
• ProtocolViewer and indexer reads, including a raw GraphQL escape hatch
• vaults, rate managers, delegation, fees, and snapshots
• Peerlytics market, explorer, history, attribution, and API-key operations
• USDC balances and transfers
• hosted checkout creation, reads, cancellation, and local resume cache
• local config and environment inspection

Run peer --help, peer <family> --help, or inspect the generated tool catalog for the exact current paths, flags, schemas, auth requirements, and danger markers.

Every command also accepts --params <json> and --params-file <path>. Typed flags override raw values.

Development

This repository uses npm and its committed package-lock.json.

npm install
npm run dev -- quote --from USD --amount 100 --platform wise
npm run check

npm run build regenerates all agent catalogs before bundling peer and the public MCP library entry point. Run npm run test:e2e after changing networked flows or checkout behavior.

The documentation application for agents.peer.xyz is owned by zkp2p/zkp2p-clients at clients/agents; this repository owns the executable runtime, package manifests, portable skill, and generated contracts it documents.

UPI

UPI/INR is available in production, preproduction and staging, matching the @zkp2p/sdk catalog. peer config platforms lists it alongside the other rails, and peer quote --from INR --amount 100 --platform upi requests a quote. Deposit creation, payee registration and intent previews accept the same platform.