Short answer: Skyfire is an identity and payments network for AI agents. It gives each agent a Know Your Agent (KYA) identity and a wallet managed by Skyfire, funded by card, ACH, wire or USDC on Base, from which the agent creates signed tokens that sellers verify and charge. Coinstancy Agentic Bank connects your AI to your own finances through a personal MCP, gives each agent a separate USDC wallet on Base with daily and monthly budgets and approval thresholds, and keeps workflows running with Cloud Run after the AI disconnects.
Key takeaways
- Skyfire launched its payment network in August 2024. Agents use 3 kinds of signed tokens (kya, pay, kya-pay) to prove identity and pay, through an API or a hosted MCP server.
- Both are custodial: Skyfire manages each agent's wallet, and Coinstancy keeps the agent wallet in your Coinstancy account. Skyfire also tokenizes Visa and Mastercard cards for checkout.
- Skyfire caps each payment token by amount, seller and expiry; Coinstancy adds transaction, daily and monthly budgets, service allowlists, approval thresholds, simulation by default and receipts.
- Only Coinstancy links the agent to your portfolio, transactions, rates and investments, and runs scheduled or event-triggered workflows after your AI disconnects. Only Skyfire lets you sell your own services to agents.
Skyfire vs Coinstancy at a Glance
Both products let an AI agent spend a dollar balance on its own. They do it differently: Skyfire is a network where agents and sellers exchange signed identity and payment tokens, while Coinstancy Agentic Bank gives your agent a policy-controlled USDC wallet on Base that pays x402 services, the open protocol for paying an API call in stablecoins over HTTP. The table compares what each provider publishes, as read on November 11, 2026.
| 功能 | Skyfire | Coinstancy Agentic Bank |
|---|---|---|
| Built for | Teams running AI agents that need verified identity and payment credentials, and sellers of APIs, websites and MCP servers who want to accept agents | People who want their AI to read their finances and spend within their rules |
| How the AI connects | REST API with a per-agent API key, or the hosted Skyfire MCP server (seller search and token creation) | Personal MCP for a compatible AI client, plus Cloud Run for workflows |
| 托管 | Custodial: every agent account comes with a wallet managed by Skyfire, which the docs describe as provisioned and custodied by Skyfire | Custodial platform: the agent wallet sits in your Coinstancy account, separate from your main balance; no seed phrase to manage |
| Networks and rails | USDC deposits on Base; Visa and Mastercard agentic card tokens; ACH and wire funding for subscription accounts | Base |
| 资产 | USDC, shown as a USD balance; card payments for external sellers | USDC |
| What the agent can do | Create kya, pay and kya-pay tokens for sellers in the Skyfire Directory; organization accounts can also pay websites not onboarded to Skyfire by card | Approved x402 services and transfers between authorized agent wallets and pools |
| Spending limits | Each token is capped by amount, seller and expiry (up to 24 hours for onboarded sellers); the product page lists "spending limits per agent" | Transaction, daily and monthly budgets, service allowlists, prices and approval thresholds per agent |
| Human approval | The cardholder authorizes each card purchase; per-payment approval for USDC tokens not documented | Explicit confirmation before money moves through the MCP; approvals above the threshold you set |
| Safety checks | Know Your Agent (KYA) identity in signed JWTs, seller service review before listing, Verified Service Guarantee disputes within 5 days | Simulation on by default, receipts for every action, paid calls can be paused immediately |
| Access to your finances | No: a funded agent wallet, not linked to your other accounts | Yes: portfolio, transactions, rates and investments through the personal MCP |
| Automation after the AI disconnects | "Buy later" card purchases wait for a condition the cardholder sets, such as a price drop; no hosted scheduler documented | Cloud Run: scheduled or event-triggered workflows after your AI disconnects |
| 费用 | No fee schedule in the docs we read; KYA verification and ACH or wire funding require a paid subscription | No Agentic Bank fee published on the product page |
| Sign-up | Email magic link; a buyer agent and a pre-funded wallet are created at sign-up; KYA verification optional | Coinstancy account with identity verification (KYC by Sumsub) |
How we compared: both products are described on the same points using each provider's own documentation and product page (see Sources). Where a provider does not document a point, we say so instead of guessing. Coinstancy publishes this guide and runs one of the two products compared.
What is Skyfire?
Skyfire calls itself "The Agent Trust Stack". Its documentation describes it as giving agents "verified identity and payment credentials that work across the open internet", so they are not blocked by websites or stopped at checkout. TechCrunch reported the launch of its payment network for AI agents in August 2024.
Skyfire is not a wallet app you hand to an AI client on its own. It is a two-sided network: buyer agents create tokens, and sellers (websites, APIs, MCP servers) verify and charge them. Organizations can also use its API to give their own customers agents and wallets.
Know Your Agent (KYA)
KYA binds the human principal, the agent and optionally the agent platform into an identity sellers can check. Verification of a real person or organization is optional and requires a subscription; a seller can require it before granting access.
KYAPay Tokens
Tokens are signed JWTs: kya carries identity and cannot be charged, pay authorizes a payment to a seller, and kya-pay combines both. Each payment token is scoped to a seller, an amount and a timeframe, and Skyfire says it "acts like a prepaid debit card".
Agentic Wallet and Cards
Skyfire's site describes "a secure wallet able to enroll user credit cards, manage stablecoins and collect user mandates". Cards are tokenized with the issuing bank, so the agent never holds the real card number.
Selling to Agents
Sellers list an API, a website or an MCP server in the Skyfire Directory, priced per use, per MB, by subscription or free. Skyfire reviews each service before agents can pay for it, which typically takes 48 hours.
How Skyfire Works
For a buyer, the quickstart and buyer guide follow four steps. Every interaction then repeats the same loop: present a token, the seller verifies it, delivers, and charges.
Sign Up With a Magic Link
You log in to the Skyfire Dashboard with a link sent by email. Sign-up creates a buyer agent and a pre-funded wallet automatically. You then create an API key for that agent; Skyfire warns that anyone with the key can create and authorize payments on your behalf.
Fund the Wallet
Add money by credit or debit card, by sending USDC on Base to the wallet address, or by ACH or wire if you have a paid subscription. Deposits appear as US dollars.
Create a Token
The agent creates a kya, pay or kya-pay token for a seller, through the API or the MCP server. A payment token commits its amount against the wallet balance and expires after 24 hours at most for sellers onboarded to Skyfire.
The Seller Charges, Skyfire Settles
The seller verifies the token, delivers and charges the actual amount owed, never more than the token amount. Skyfire then moves the funds from the buyer's wallet to the seller's wallet; its settlement page describes a charge window and settlement that can take up to about 51 hours in total.
What is Coinstancy Agentic Bank?
Coinstancy Agentic Bank connects AI to financial action in three layers. Instead of a wallet on its own, it ties the agent to your Coinstancy account, with a policy you define and can see.
Personal MCP (Ask)
Connects your portfolio, transactions, rates and investments to a compatible AI client. The AI shows a quote or estimate, and you explicitly confirm each financial action before money moves.
Agent wallet (Authorise)
Each agent gets a separate USDC wallet on Base. You set its budget, allowed services, prices and approval thresholds. Autonomous spending stays within that wallet, never your main account.
Cloud Run (Automate)
Scheduled or event-triggered workflows keep running after your AI disconnects: trigger, check, act, trace. Simulate first, approve when required, inspect receipts and pause anytime. Wallet policy and cost limits still apply.
What can an agent pay for? Approved x402 services and transfers between authorized agent wallets and pools, within the service allowlists, spending limits and approval thresholds you define. Coinstancy is a custodial platform and requires identity verification when you open an account.
关键差异
Both products hold the agent's balance for you and both can use USDC on Base. Most differences come from what each one is designed around: a network between agents and sellers, or controls around your own money.
A Network vs Your Finances
Skyfire gives an agent an identity and a wallet that sellers across its network recognize. Coinstancy's personal MCP also gives your AI client access to your portfolio, transactions, rates and investments, so it can answer questions about your money and prepare actions you confirm.
Skyfire Tokens vs x402
Skyfire sellers accept its own kya, pay and kya-pay tokens, and USDC-funded tokens only pay sellers onboarded to Skyfire. Coinstancy agents pay approved services through x402. The x402 protocol is not mentioned in the Skyfire documentation we read.
Cards and Bank Rails
Skyfire funds wallets by card, ACH, wire or USDC on Base, and organization accounts can pay websites outside Skyfire with tokenized Visa or Mastercard cards. Coinstancy Agentic Bank uses USDC on Base only.
自动化
Skyfire documents "buy later" card purchases that wait for a condition the cardholder sets, but no hosted scheduler for agents. Coinstancy Cloud Run keeps scheduled or event-triggered workflows going after your AI disconnects, under the same wallet policy and cost limits.
Spending Controls Compared
Giving an agent money is mostly a question of limits: how much it can spend, on what, and when a person must step in.
| Control | Skyfire | Coinstancy Agentic Bank |
|---|---|---|
| 每笔交易 | Yes: each payment token has a maximum amount | 是 |
| Per agent | "Spending limits per agent" on the product page; details not documented | Yes, a budget per agent |
| Daily and monthly budgets | Not documented | 是 |
| Expiry of a payment | Up to 24 hours for onboarded sellers, 5 minutes by default for external sellers | Not described |
| Service allowlist | Each token is bound to one seller; a buyer-side allowlist is not documented | 是 |
| Human approval | The cardholder authorizes each card purchase; a threshold for USDC tokens is not documented | Yes, above the threshold you set |
| Simulation before acting | Sandbox environment for testing; per-action simulation not documented | On by default |
| Receipts and pause | Dashboard lists tokens and charges; API keys and accounts can be deactivated, but tokens already issued stay chargeable until they expire, plus 24 hours | Receipts for every action; paid calls can be paused immediately |
| Disputes | Verified Service Guarantee: dispute within 5 days with Verified Sellers | Not described on the product page |
"Not documented" means we did not find the control in the provider's public documentation on November 11, 2026; it does not prove the control is missing. Check each provider's current documentation before you rely on a control.
Which One Should You Choose?
Choose Skyfire If
You build agents that need a verified identity to get past bot protection or sign up on websites, you want to sell an API, a website or an MCP server to agents, or your organization needs card checkout and wallets for its own customers' agents.
Choose Coinstancy Agentic Bank If
You want your AI to work with your own finances, with daily and monthly budgets, service allowlists, approvals above a threshold, simulation and receipts, and workflows that keep running on schedule after the AI disconnects.
Using Both
The two use different payment formats, Skyfire tokens on one side and x402 on the other, so a service accepting one does not necessarily accept the other. Keep in mind that every extra wallet is another balance and another set of limits to watch.
常见问题
What is Skyfire?
Is Skyfire custodial?
Which blockchains and currencies does Skyfire support?
How much does Skyfire cost?
Does Skyfire have an MCP server?
How is Coinstancy Agentic Bank different from Skyfire?
来源与延伸阅读
The facts on this page rest on the documents below, read on November 11, 2026. Features, limits and fees change: check the live documentation before acting on them.
- Skyfire, The Agent Trust Stackskyfire.xyz
KYA, Agentic Wallet, card enrollment, stablecoins and user mandates.
- Skyfire, Productskyfire.xyz
Funding rails and "spending limits per agent".
- Skyfire Docs, Introductiondocs.skyfire.xyz
Identity and payment credentials, token types and the four-step interaction.
- Skyfire Docs, Platform structuredocs.skyfire.xyz
Buyer and seller agents, one wallet per agent managed by Skyfire.
- Skyfire Docs, Buyer guidedocs.skyfire.xyz
Magic-link sign-up, pre-funded wallet, API keys, token scope, tokens and charges in the dashboard.
- Skyfire Docs, Know Your Agentdocs.skyfire.xyz
Optional identity verification and its subscription requirement.
- Skyfire Docs, Funding your walletdocs.skyfire.xyz
Card, USDC on Base, and ACH or wire for subscription accounts.
- Skyfire API reference, Create tokendocs.skyfire.xyz
Onboarded and external sellers, token expiry, card funding for external sellers.
- Skyfire Docs, Payments and settlementdocs.skyfire.xyz
Amount commitment, charge window, settlement timing and deactivation.
- Skyfire Docs, Using the Skyfire MCP serverdocs.skyfire.xyz
Server address, tools, API key and Claude Desktop set-up.
- Skyfire Docs, Payment cardsdocs.skyfire.xyz
Card tokenization and cardholder authorization of each payment.
- Skyfire Docs, Agentic commerce with payment cardsdocs.skyfire.xyz
Buy now and buy later purchases, approved amount as a ceiling.
- Skyfire Docs, Agent providerdocs.skyfire.xyz
Wallet that Skyfire provisions and custodies; coin payments only to onboarded sellers.
- Skyfire Docs, How seller services workdocs.skyfire.xyz
Service types, pricing models and the 48-hour review.
- Skyfire Docs, Verified Service Guaranteedocs.skyfire.xyz
Disputes within 5 days for non-delivery or misrepresentation.
- TechCrunch, Skyfire lets AI agents spend your moneytechcrunch.com
Launch of the payment network, August 2024.
- x402x402.org
The open protocol for paying APIs and services in stablecoins over HTTP.
- Model Context Protocolmodelcontextprotocol.io
The open standard that connects AI clients to tools and data.
- Coinstancy Agentic Bankcoinstancy.com
Personal MCP, agent wallet on Base, budgets, approvals, simulation, receipts and Cloud Run.
Last reviewed: November 2026. External links open in a new tab; Coinstancy is not responsible for their content.
Give Your AI a Wallet
Coinstancy Agentic Bank gives each of your agents a separate USDC wallet on Base, governed by your budgets, allowed services and approval thresholds, and connects your AI to your finances with explicit confirmation before money moves. Coinstancy is custodial, and balances are not FDIC insured.