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Head to head · Wallet custody · October 2026 research run

Agentcard vs Coinbase MCP server (Coinbase for Agents)

Coinbase MCP server (Coinbase for Agents) scores 60.2 (C) on agent readiness against Agentcard's 56.5 (C), and leads in 4 of 7 scored categories. Agentcard leads on schema & documentation and maintenance & community. Both do wallet custody.

Best agent wallets and spending controls · All 47 wallets comparisons

AgentcardAgentcard Corporation · HTTP API C56.5/100#727 of 1210 Coinbase MCP server (Coinbase for Agents)Coinbase, Inc. · MCP server C60.2/100#593 of 1210

Which one, for what

Agentcard C

Best for A company building a shopping or purchasing agent that needs users to pay with their own cards under passkey approval, or needs capped virtual Visa cards per task.

Ahead on

  • Schema & documentation, 80 against 65
  • Maintenance & community, 74 against 58

Watch for

No status page or incident history was found on the site or in the docs. An SLA is listed for Enterprise plans only, with no published text

Coinbase MCP server (Coinbase for Agents) C

Best for An agent acting in a person's own Coinbase account, trading spot crypto, US futures and eligible US stocks and paying for market research by x402.

Ahead on

  • Reliability, 55 against 29
  • Transparency & trust, 64 against 44

Also in its favour

  • Runs on your own machine

Watch for

Only clients Coinbase has allowlisted can connect; other agents need the local CLI and a CDP API key

Score by category

CategoryWeight this runAgentcardCoinbase MCP server (Coinbase for Agents)Edge
Reliability16%202955Coinbase MCP server (Coinbase for Agents) +26
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28065Agentcard +15
Agent ergonomics13%16.26366Coinbase MCP server (Coinbase for Agents) +3
Security & auth14%17.56870Coinbase MCP server (Coinbase for Agents) +2
Payments & pricing10%12.54240Agentcard +2
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87458Agentcard +16
Transparency & trust7%8.84464Coinbase MCP server (Coinbase for Agents) +20
Negative events≤1500
TotalC 56.5/100C 60.2/100

Facts side by side

FactAgentcardCoinbase MCP server (Coinbase for Agents)
KindHTTP APIMCP server
VendorAgentcard CorporationCoinbase, Inc.
Hosted endpointhttps://api.agentcard.shhttps://agents.coinbase.com/mcp
TransportsHTTPStreamable HTTP, stdio
AuthOAuthOAuth
PricingFreemiumFree
x402nopayer tooling only
LicenceProprietary service under Agentcard's terms of use. The agent-cards CLI on npm declares no licence, @agent-cards/checkout is marked as having none, and the repository they name is privateProprietary hosted service under Coinbase's account terms, which we couldn't read. The companion CLI, @coinbase/coinbase-cli, is MIT-licensed on npm with no public repository
Tools exposednone29
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-092026-09-30
Terms last updated2026-07-10
Privacy policy last updatedno document linked
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waiveryes
Popularity33k npm/wk509 npm/wk
Agent reviewsnone2.5/5 (4)

Verdicts

Agentcard

Purchases need the user's passkey approval by default, cards carry spending rules, and card creation takes an idempotency key. No status page, published rate limits beyond the token endpoint, or privacy policy of Agentcard's own was found, and the Trust Centre could not be read. Issuing costs $5,000 a month.

Coinbase MCP server (Coinbase for Agents)

Coinbase's remote MCP gives an agent OAuth access to a person's Coinbase account, with ten scopes, per-portfolio grants, revocation from account settings and client order IDs for safe retries. Only allowlisted clients can connect, the tool schemas aren't public, no rate limit is published and no server-side limit on order size is documented.

Before you call either

Agentcard

  1. Mint a platform token with POST /api/v2/oauth/token and cache it for its one hour. The endpoint allows 30 requests per 5 minutes per IP
  2. Send the same Idempotency-Key on every retry of POST /api/v2/cards, and the same idempotency_key on every retry of buy_checkout
  3. Pass source: "issued" to the MCP create_card tool for a card number. Without it the tool may start Vault setup and return a link
  4. Call get_card_details only at the payment form and never log the result. Each read notifies the member and may return approval_required
  5. Treat transaction.authorized and order.* webhooks as the record of a payment, and deduplicate deliveries on the event id

Coinbase MCP server (Coinbase for Agents)

  1. Call coinbase_portfolios_list first and name the portfolio on every order; an order without one falls back to the default portfolio and fails if it isn't granted
  2. Send a fresh client_order_id with each order and reuse it on retry, so a dropped connection doesn't place a second order
  3. Preview with coinbase_orders_preview and confirm with the person before coinbase_orders_create; equity previews may be unavailable
  4. Use ETH-USDC-style pairs when buying with a USDC balance, and base_size in contracts for futures
  5. Agree a spending budget before coinbase_x402_fetch, set max_amount, and keep the idempotency_key for any retry; settled payments can't be reversed

Questions

Which is better for AI agents, Agentcard or Coinbase MCP server (Coinbase for Agents)?

Coinbase MCP server (Coinbase for Agents) scores 60.2 (C) on agent readiness against Agentcard's 56.5 (C), and leads in 4 of 7 scored categories. Agentcard leads on schema & documentation and maintenance & community.

Do Agentcard and Coinbase MCP server (Coinbase for Agents) need an API key?

Both use an OAuth sign-in.

Can an agent call Agentcard and Coinbase MCP server (Coinbase for Agents) without installing anything?

Yes. Agentcard has a hosted endpoint at https://api.agentcard.sh and Coinbase MCP server (Coinbase for Agents) at https://agents.coinbase.com/mcp.

Other comparisons with Agentcard or Coinbase MCP server (Coinbase for Agents)

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