Axiom Relay MCP Server

by itr3k Your server? Claim it

not responding

Axiom Relay is listed as active in the registry but did not answer our last check. It exposes 6 tools. Last commit 3 Sep 2026.

Find and buy paid x402 APIs on Base, ranked by price and reliability. You sign; non-custodial.

The author archived this repository on GitHub, meaning it is no longer maintained.

Uptime history 71 days of history · worst day 0%

71 days agonow

0.0%

Uptime 24h

0 of 92 checks

Tools

read from the server

62 ms

Response time

average over 24h

Stars

last commit 3 Sep 2026

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 26 August 2026. No other catalogue keeps this.

28 Aug a tool description was rewritten quote_crypto_swap

25 Aug a tool description was rewritten quote_crypto_swap

Axiom Relay does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add axiom-x402-payment-relay --transport http https://axiom-relay.reference-seller.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://axiom-relay.reference-seller.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.axiom-x402-payment-relay]
url = "https://axiom-relay.reference-seller.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "axiom-x402-payment-relay": {
      "url": "https://axiom-relay.reference-seller.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "axiom-x402-payment-relay": {
      "type": "http",
      "url": "https://axiom-relay.reference-seller.workers.dev/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

quote

quote_crypto_swap

Route a token swap non-custodially. Compares execution providers, normalises every fee and gas cost, and returns transactions for YOUR wallet to sign -- Axiom never holds funds or keys. Chains: Ethereum, Base, Arbitrum One, OP Mainnet. Execution via LI.FI. Axiom fee 15 bps embedded in the swap; the provider's own fee is disclosed separately and is not Axiom revenue. Status: beta.

quote_paid_resource

Price a specific x402 resource URL, including the Axiom fee. Executes no payment.

analyze

analyze_crypto_swap

Compare execution providers and total cost for a prospective swap and get a recommendation. Returns no signable transaction, so it cannot execute anything.

paid

find_paid_resource

Find x402 providers for a described capability and return them ranked, with the reason the top candidate was selected. Executes no payment.

provider

check_provider

Report whether an x402 resource is reachable, valid and what it charges. Executes no payment.

purchase

purchase_paid_resource

Execute a quoted purchase with buyer-signed authorisations. The caller signs; Axiom never holds a key.

Endpoints

URL	Transport	State	Latency	Checked
https://axiom-relay.reference-seller.workers.dev/mcp	streamable-http	answering	62 ms	1 min ago

Alternatives to Axiom Relay

same job, measured the same way

Gatefareio

by gatefareio

Marketplace of paid HTTP APIs. USDC micropayments via x402 on Base. Non-custodial.

65 installs/wk local only

ClawPay MCP — Non-Custodial x402 Payments for AI Agents

by up2itnow0822

Non-custodial x402 payments for AI agents. Sign locally, spend limits, Base network.

64 installs/wk local only

X402 List MCP

by x402-list

Find and vet x402 payment APIs before your agent pays one: uptime, price, on-chain volume.

118 installs/wk 7 tools answering

Xenarch MCP

by xenarch-ai

Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2.

145 installs/wk local only

Neuronto Payments: x402 facilitator and API gateway

by neuronto

Put any API behind x402 in one call, settle USDC on Base, buy credits, find paid resources

6 tools answering

SafeRoute

by crystalsignal

Noncustodial Base x402 payment control and seller settlement recovery

13 tools answering

TokenSafe by PromptVault

by onrender-promptvault-x402

Free token risk check (Base/Solana) + info on paid x402 reports. Not financial advice.

2 tools answering

Code402

by 89rat

Discover machine-payable APIs, probe x402 payment terms, and run seller operations. Non-custodial.

8 tools answering

Axiom Relay — questions

Answers built from our own checks of this server.

What can Axiom Relay do?

It exposes 6 tools, read directly from the server on our last check. Among them: analyze_crypto_swap, check_provider, find_paid_resource, purchase_paid_resource, quote_crypto_swap, quote_paid_resource. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Axiom Relay working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 62 ms. The bar chart above shows every period we have measured.

Is Axiom Relay still maintained?

The author archived this repository on GitHub, meaning it is no longer maintained. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

The registry lists Axiom Relay as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Axiom Relay?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Axiom Relay need an API key?

No. Axiom Relay completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

Is Axiom Relay open source?

The code is open source: it is published under the MIT licence, written in TypeScript, 0 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at axiom-relay.reference-seller.workers.dev, which runs on its operator's own terms.