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agentscore-pay --mcp exposes the AgentScore CLI as an MCP server over stdio. AI agents and coding assistants can register the binary once and call every wallet, payment, and identity command as a tool; wallet management, x402/MPP payments, reputation lookups, on-the-fly assessments, verification sessions, operator credentials, and wallet attribution all in one server.

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Install

npm install -g @agent-score/pay
# or: npx @agent-score/pay <command>
Set AGENTSCORE_API_KEY for identity tools (reputation, assess, sessions, credentials, and associate-wallet) available on every tier and metered by quota (paid tiers raise the limits and unlock the full reputation response). Wallet and payment tools are local and need no key.

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Register with your agent

agentscore-pay mcp add                     # auto-detect (Claude Code, Cursor, Amp, ...)
agentscore-pay mcp add --agent claude-code # target a specific agent
This writes the MCP config for your agent so the tools appear automatically.

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Manual config: Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows): 
{
  "mcpServers": {
    "agentscore-pay": {
      "command": "agentscore-pay",
      "args": ["--mcp"],
      "env": {
        "AGENTSCORE_API_KEY": "as_live_your_key_here"
      }
    }
  }
}

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Manual config: Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global) with the same shape.

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Available tools

Every command from agentscore-pay --help is exposed as a tool. The most agent-relevant ones:

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Wallet + payment

ToolPurpose
initFirst-run setup: creates encrypted keystores for Tempo, Solana, Base
wallet_create / wallet_import / wallet_address / wallet_listKeystore CRUD
balanceUSDC balance across chains
fund / faucetReceive QR + balance poll on mainnet; programmatic mint or faucet URL on testnet
paySend an HTTP request and auto-handle the 402 round-trip
checkProbe a 402 response and show accepted rails (without paying)
discoverList paid services from the x402 Bazaar + MPP services directory
fund-estimate”How many calls does my balance cover for this URL?”

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Identity (any tier: set AGENTSCORE_API_KEY)

ToolPurpose
reputationCached trust reputation lookup (free tier)
assessOn-the-fly assessment with policy (KYC, age, sanctions, jurisdiction)
sessions_create / sessions_getIdentity verification flow: returns verify_url + polls for operator_token
credentials_create / credentials_list / credentials_revokeOperator credential (opc_...) lifecycle
associate-walletReport a signer wallet seen paying under a credential (cross-merchant attribution)
Run agentscore-pay --llms for the full machine-readable manifest (or --llms --format json for JSON Schema).

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Denial-code handling

assess decodes every denial code emitted by the AgentScore API into structured CliError codes with hint lines, so agents act from the response without parsing raw 4xx/5xx HTTP shapes. Codes include missing_identity, identity_verification_required, wallet_not_trusted, compliance_denied, wallet_signer_mismatch, wallet_auth_requires_wallet_signing, token_expired, invalid_credential, payment_required, api_error.

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Use cases

Agent-to-agent trust; verify the reputation of another agent’s wallet before initiating a transaction. Gateway pre-screening; an agent acting as a gateway screens incoming requests by wallet reputation. Autonomous payment; discover a 402-gated endpoint, probe it with agentscore-pay check, dry-run with agentscore-pay pay --dry-run, then settle the payment via agentscore-pay pay. All without leaving the MCP loop. Identity bootstrap; an agent encounters an AgentScore-gated merchant for the first time, receives a missing_identity denial, calls sessions_create → polls sessions_get → uses the returned operator_token to retry the original request.

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Environment variables

VariableDescription
AGENTSCORE_API_KEYAPI key for identity tools (reputation, assess, sessions, credentials, associate-wallet). Get one at agentscore.com/sign-up.
AGENTSCORE_PAY_PASSPHRASESkip the interactive passphrase prompt for keystore operations.
AGENTSCORE_PAY_HOMEOverride the state dir (default ~/.agentscore).

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Running locally

AGENTSCORE_API_KEY=as_live_your_key_here agentscore-pay --mcp
The server communicates over stdio using the MCP protocol. Pipe {"jsonrpc":"2.0","id":1,"method":"tools/list"} to it to enumerate tools.