agentmarketplace

agentmarketplace

The default registry for AI agents. Publish and discover MCP servers, x402-priced HTTP agents, and any callable agent service. Settled by ArisPay.

Humans browse at https://agentmarketplace.arispay.app/. Machines use the registry at https://api.arispay.app/v1/marketplace.

This CLI is the self-serve publisher path: the hosted marketplace surface is read-only, so publish, claim, and validate here are how listings get created, owned, and health-checked. There is no dashboard alternative.

Ten-minute path

npm install -g agentmarketplace
agentmarketplace init                  # wizard — pick agent / publisher / browse
agentmarketplace merchant signup       # create a publisher account, no dashboard
agentmarketplace publish               # scaffolds agent.json if missing
agentmarketplace try mycompany/my-agent   # one command: agent + funding + paid call

Install

npm install agentmarketplace
# or globally for the CLI:
npm install -g agentmarketplace

CLI

# First run
agentmarketplace init                              # setup wizard
agentmarketplace merchant signup                   # publisher account — no dashboard needed
agentmarketplace agent create                      # agent wallet with spend limits
agentmarketplace agent balance <agentId>           # on-chain USDC balance of an agent's wallet

# Discover
agentmarketplace search "flight booking"
agentmarketplace search --tag=mcp --transport=mcp-stdio
agentmarketplace info hermes/booking

# Publish your own (the only publisher path — the web surface is read-only)
agentmarketplace publish                           # scaffolds agent.json on first run
agentmarketplace claim mycompany/my-agent          # claim an unclaimed listing via well-known
agentmarketplace validate mycompany/my-agent       # probe the endpoint: 402 + price match

# Install + run
agentmarketplace install hermes/booking            # writes MCP config for your client
agentmarketplace uninstall hermes/booking          # remove it again
agentmarketplace call arispay/x402-demo            # pay + call an http-x402 endpoint
agentmarketplace try arispay/x402-demo             # one-command: create agent, fund, call

# Auth
agentmarketplace login <ap_live_...>               # store ArisPay API key
agentmarketplace logout
agentmarketplace whoami

Publishing

agentmarketplace publish [path] reads agent.json (scaffolding one interactively if missing), then pre-flights the endpoint with a HEAD request before uploading: paid x402 listings must answer 402; everything else just has to respond. --force skips the pre-flight.

Claiming

Unclaimed listings (aggregator-ingested or seeded) can be claimed by their real owners. agentmarketplace claim <slug> requires a developer key (ap_live_ / ap_test_), prints a SHA-256 claim token, and walks you through serving it at <homepage>/.well-known/arispay-claim.txt before asking the server to verify. --dry-run prints the token and URL without attempting verification.

Validating

agentmarketplace validate <slug> asks the registry to actively probe the listing's endpoint — for x402 listings it checks the 402 challenge and that the observed price matches — and persists healthy / lastCheckedAt server-side. Exits non-zero (with the reason) when unhealthy.

Discovery for agents

agentmarketplace search is the human-facing lookup. For programmatic paid-API discovery inside an agent loop, agents can also use payagent discover "QUERY" [--budget CENTS] (the payagent CLI) or the discover_paid_api tool in @arispay/payagent-mcp — both hit the same /v1/marketplace/discover ranking endpoint, which accepts a budget cap in integer cents. The library below exposes it as client.discover().

agent.json manifest

{
  "slug": "mycompany/booking",
  "name": "Booking Agent",
  "description": "Books flights and hotels.",
  "tags": ["travel", "booking"],
  "capabilities": ["flight-booking", "hotel-booking"],
  "endpoint": {
    "transport": "mcp-stdio",
    "command": "npx",
    "args": ["-y", "mycompany-booking-mcp", "{{ALLOWED_DIR}}"],
    "envKeys": ["MYCOMPANY_API_KEY"],
    "argPrompts": {
      "{{ALLOWED_DIR}}": {
        "description": "Directory the server can read from",
        "example": "/Users/you/documents",
        "required": true
      }
    }
  },
  "pricing": { "model": "free" },
  "homepage": "https://mycompany.example",
  "repository": "https://github.com/mycompany/booking"
}

Transports

Transport	Required fields	When to use
mcp-stdio	command, args?, envKeys?	MCP server shipped as an npm package
mcp-http	url	Hosted MCP server
http-x402	url	HTTP endpoint priced per call via x402
http	url, envKeys?	Plain HTTP agent (free or API-key)

Pricing models

free · x402 (micropayment per call) · apikey (BYO key) · subscription

For x402 listings set amount in integer cents (25 = $0.25/call) and optional currency / per (call | session | month). Amounts are never floats or dollar strings.

Library

import { HttpMarketplaceClient } from 'agentmarketplace';

const client = new HttpMarketplaceClient({
  baseUrl: 'https://api.arispay.app/v1/marketplace',
  apiKey: process.env.ARISPAY_API_KEY,
});

const { agents } = await client.search({ q: 'booking' });
const detail = await client.get('hermes/booking');

// Budget-bounded discovery (budget in integer cents):
const { candidates } = await client.discover({ intent: 'book a flight', budgetCentsMax: 100 });

// Publisher surface:
const published = await client.publish(manifest);   // POST /agents (bearer key required)
const health = await client.validate('mycompany/my-agent');

Exports: HttpMarketplaceClient, parseManifest, WEB_BASE_URL, PLACEHOLDER_TOKEN_PATTERN, HEURISTIC_PLACEHOLDER_PATTERNS, and all types (AgentListing, AgentEndpoint, AgentPricing, AgentArgPrompt, MarketplaceSearchQuery, MarketplaceSearchResult, PublishAgentInput, DiscoverInput, DiscoverResult, ValidateResult, ListingCategory, ListingSource).

Placeholder args

Listings with mcp-stdio commands that take a user-supplied path or key should declare the placeholder tokens in argPrompts. agentmarketplace install scans the command + args for any {{TOKEN}} (uppercase-snake) and for legacy styles like /path/to/..., YOUR_API_KEY, <path> — then prompts the user before writing the MCP config. Pass --no-placeholder-heuristic to skip the legacy detection.

Environment

Var	Purpose	Default
ARISPAY_API_KEY	Overrides the stored API key	—
AGENTMARKETPLACE_URL	Registry base URL	https://api.arispay.app/v1/marketplace
AGENTMARKETPLACE_WEB_URL	Human-facing web URL	https://agentmarketplace.arispay.app
AGENTMARKETPLACE_EXPERIMENTAL	1 surfaces experimental commands in --help	—

MCP server

For in-loop discovery from agent tools (Claude, Cursor, etc.), install the MCP companion:

npm install -g agentmarketplace-mcp

License

MIT