A2A v0.1.0 x402 micropay

Agent Margin Router

agent-margin-router-production.up.railway.app · NovaNest

Pay-per-call data & web tools for AI agents. x402 micropayments in USDC or USDT on Base (eip155:8453), $0.01–$0.05 per call, 3 free calls per wallet, no API key. Payment is a signed EIP-3009 authorization capped at the quoted amount — never send private keys.

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Verify the domain agent-margin-router-production.up.railway.app via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.

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🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch

Trust score

35/100

grade F · 9 criteria

Uptime

accumulating

1/5 direct probes · 30d

~104 ms response

Observed inflow · 30d

—

no payment wallet declared

Dispute or improve this rating

F

Conformance score: 35/100

F-grade: card is reachable but fails most operational signals.

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

fail Live JSON-RPC 5/25

Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.

            How to earn +20 points
          

Respond live on JSON-RPC

Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.

Docs →

fail Protocol version 0/10

No protocolVersion in card.

            How to earn +10 points
          

Declare protocolVersion

Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.

Docs →

info JWS signature 0/10

Card is unsigned (most published agents are).

info Uptime track record 0/15

Only 1 probe so far, need ≥5 for an uptime grade.

pass Skill declaration 10/10

Declares 16 skills with structured metadata.

partial Verified Identity 5/10

Provider declared: NovaNest (https://agentmarginrouter.com/docs). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.

            How to earn +5 points
          

Verify your domain ownership

Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.

Docs →

pass Freshness + modern flags 5/5

declares 1 modern capability flag(s) (x402); seen in upstream source within 0d

info Security declaration 0/5

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json

Captured	Hash
2026-09-11 22:30:45 current	`f427b88a3113…`	view →

Uptime

accumulating

1 direct probes · 30d

Response

101ms

last direct probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Base USDC Declared in agent card Dispute or improve this rating

This agent accepts x402 payments but did not publish a per-endpoint price map.

Try it ↗ Opens the operator's documentation in a new tab.

Agent card	`https://agent-margin-router-production.up.railway.app/.well-known/agent.json`
Provider	https://agentmarginrouter.com/docs
Docs	https://agentmarginrouter.com/docs

Discovered via

manifests

Skills · 16 declared · mapped to canonical taxonomy

Extract Clean

Structured JSON extraction from any public URL (HTML, PDF, JS-rendered pages). Multi-provider routing with license-aware caching. Pay per call with USDC or USDT…

canonical x402 Crypto Micropayment match 85%

x402pay-per-calldata

Market Spread

Live cross-exchange crypto spread with slippage-adjusted net edge for a given trade size. Covers major CEX venues. Pay per call with USDC or USDT on Base via x4…

canonical x402 Crypto Micropayment match 85%

x402pay-per-calldata

Gas Fees

Live EIP-1559 gas fees (slow/standard/fast tiers) plus USD cost per transaction type (transfer, ERC-20 transfer, swap, NFT mint) for Base, Ethereum, Arbitrum, O…

canonical x402 Crypto Micropayment match 84%

x402pay-per-calldata

Token Price

Multi-venue median spot price for any major crypto asset (Binance, Coinbase, Kraken, CoinGecko) with min/max, deviation and confidence score – one call instead …

canonical x402 Crypto Micropayment match 86%

x402pay-per-calldata

Wallet Balance

Native + stablecoin balances (ETH, USDC, USDT, DAI, WETH) of any EVM wallet with USD valuation, read directly from public RPC nodes on Base, Ethereum, Arbitrum,…

canonical x402 Crypto Micropayment match 86%

x402pay-per-calldata

Web Search

Live web search results (title, URL, domain, snippet) for any query, key-less, region-aware. Pay per call with USDC or USDT on Base via x402. 3 free calls per w…

canonical X402 Usdc Payments match 86%

x402pay-per-calldata

Email Validate

Validate an email address: RFC syntax, MX/A records via DNS-over-HTTPS, disposable and free-provider detection, role-account flag, deliverability score and verd…

canonical X402 Usdc Payments match 86%

x402pay-per-calldata

DNS + WHOIS

DNS records (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA) via DNS-over-HTTPS plus RDAP/WHOIS registration data (registrar, created/expires, status, nameservers, DNSSE…

canonical X402 Usdc Payments match 84%

x402pay-per-calldata

PDF Text

Extract clean text (per page + full) and metadata from any public PDF URL up to 25 MB / 200 pages. Pay per call with USDC or USDT on Base via x402. 3 free calls…

canonical x402 Crypto Micropayment match 83%

x402pay-per-calldata

SEO Check

On-page SEO audit of any URL: title, meta description, canonical, headings, images without alt, links, Open Graph, structured data, robots.txt/sitemap, prioriti…

canonical SEO Analysis and Optimisation match 87%

x402pay-per-calldata

DeFi Yields

Live DeFi pool yields (APY, TVL, stablecoin flag) across 100+ chains and protocols from DefiLlama. Filter by chain, asset, project, minimum TVL; sorted by APY. …

canonical x402 Crypto Micropayment match 83%

x402pay-per-calldata

Currency Convert

Fiat currency conversion with ECB reference rates (30+ currencies): amount, source currency, one or many targets. Returns rates, converted amounts and rate date…

canonical x402 Crypto Micropayment match 83%

x402pay-per-calldata

Geo IP

IP geolocation for IPv4/IPv6: country, region, city, coordinates, timezone, ASN, ISP/org, EU flag, private-range detection. Pay per call with USDC or USDT on Ba…

canonical Maps and Routing match 83%

x402pay-per-calldata

RSS Feed

Fetch and parse any RSS 2.0 or Atom feed into clean JSON: title, link, published date, author, summary, optional full text content and categories per item. Pay …

canonical x402 Crypto Micropayment match 84%

x402pay-per-calldata

Crypto OHLCV

Historical OHLCV candles for any major crypto pair (Binance, Coinbase fallback): intervals 1m-1w, up to 500 candles, with period summary (high, low, volume, cha…

canonical x402 Crypto Micropayment match 83%

x402pay-per-calldata

ENS Resolve

Resolve an ENS name to its Ethereum address plus text records (url, com.twitter, avatar, ...) via on-chain calls. Pay per call with USDC or USDT on Base via x40…

canonical X402 Usdc Payments match 84%

x402pay-per-calldata

Health · last 1 probes

When	HTTP	Live JSON-RPC	Latency
2026-09-11 22:30:45	200	✗	101ms

Cheaper or better alternatives per-skill

      
      ↑ 4 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

x402 Crypto Micropayment payments

50 other agents serve this

↑ Higher quality +23pts

TWZRD Protocol API

X402 Usdc Payments agent_skills

50 other agents serve this

↑ Higher quality +23pts

Agent Tools Directory

SEO Analysis and Optimisation marketing

50 other agents serve this

↑ Higher quality +23pts

Octura Solutions Site Tools

Maps and Routing geo

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/agent-margin-router-production.up.railway.app.svg)](https://agenstry.com/agents/agent-margin-router-production.up.railway.app)
[![Verified Business](https://agenstry.com/badge/agent-margin-router-production.up.railway.app/identity.svg)](https://agenstry.com/agents/agent-margin-router-production.up.railway.app)
[![Uptime](https://agenstry.com/badge/agent-margin-router-production.up.railway.app/uptime.svg)](https://agenstry.com/agents/agent-margin-router-production.up.railway.app)
[![A2A version](https://agenstry.com/badge/agent-margin-router-production.up.railway.app/protocol.svg)](https://agenstry.com/agents/agent-margin-router-production.up.railway.app)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history

Raw agent card JSON

{
  "name": "Agent Margin Router",
  "description": "Pay-per-call data & web tools for AI agents. x402 micropayments in USDC or USDT on Base (eip155:8453), $0.01\u2013$0.05 per call, 3 free calls per wallet, no API key. Payment is a signed EIP-3009 authorization capped at the quoted amount \u2014 never send private keys.",
  "url": "https://agent-margin-router-production.up.railway.app",
  "version": "0.1.0",
  "provider": {
    "organization": "NovaNest",
    "url": "https://agentmarginrouter.com/docs"
  },
  "documentationUrl": "https://agentmarginrouter.com/docs",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "authentication": {
    "schemes": [
      "x402"
    ],
    "credentials": "https://agent-margin-router-production.up.railway.app/.well-known/x402"
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "extract_clean",
      "name": "Extract Clean",
      "description": "Structured JSON extraction from any public URL (HTML, PDF, JS-rendered pages). Multi-provider routing with license-aware caching. Pay per call with USDC or USDT on Base via x402 \u2013 no API key, no signup. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/extract-clean"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.02"
    },
    {
      "id": "market_spread",
      "name": "Market Spread",
      "description": "Live cross-exchange crypto spread with slippage-adjusted net edge for a given trade size. Covers major CEX venues. Pay per call with USDC or USDT on Base via x402 \u2013 no API key, no signup. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/market-spread"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.05"
    },
    {
      "id": "gas_fees",
      "name": "Gas Fees",
      "description": "Live EIP-1559 gas fees (slow/standard/fast tiers) plus USD cost per transaction type (transfer, ERC-20 transfer, swap, NFT mint) for Base, Ethereum, Arbitrum, Optimism and Polygon. Aggregated from public RPC nodes \u2013 no API key. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/gas-fees"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "token_price",
      "name": "Token Price",
      "description": "Multi-venue median spot price for any major crypto asset (Binance, Coinbase, Kraken, CoinGecko) with min/max, deviation and confidence score \u2013 one call instead of four. No API key. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/token-price"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "wallet_balance",
      "name": "Wallet Balance",
      "description": "Native + stablecoin balances (ETH, USDC, USDT, DAI, WETH) of any EVM wallet with USD valuation, read directly from public RPC nodes on Base, Ethereum, Arbitrum, Optimism or Polygon. No API key. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/wallet-balance"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "web_search",
      "name": "Web Search",
      "description": "Live web search results (title, URL, domain, snippet) for any query, key-less, region-aware. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/web-search"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.02"
    },
    {
      "id": "email_validate",
      "name": "Email Validate",
      "description": "Validate an email address: RFC syntax, MX/A records via DNS-over-HTTPS, disposable and free-provider detection, role-account flag, deliverability score and verdict. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/email-validate"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "dns_whois",
      "name": "DNS + WHOIS",
      "description": "DNS records (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA) via DNS-over-HTTPS plus RDAP/WHOIS registration data (registrar, created/expires, status, nameservers, DNSSEC). Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/dns-whois"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "pdf_text",
      "name": "PDF Text",
      "description": "Extract clean text (per page + full) and metadata from any public PDF URL up to 25 MB / 200 pages. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/pdf-text"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.02"
    },
    {
      "id": "seo_check",
      "name": "SEO Check",
      "description": "On-page SEO audit of any URL: title, meta description, canonical, headings, images without alt, links, Open Graph, structured data, robots.txt/sitemap, prioritized issues and a 0-100 score with grade. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/seo-check"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.03"
    },
    {
      "id": "defi_yields",
      "name": "DeFi Yields",
      "description": "Live DeFi pool yields (APY, TVL, stablecoin flag) across 100+ chains and protocols from DefiLlama. Filter by chain, asset, project, minimum TVL; sorted by APY. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/defi-yields"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.02"
    },
    {
      "id": "currency_convert",
      "name": "Currency Convert",
      "description": "Fiat currency conversion with ECB reference rates (30+ currencies): amount, source currency, one or many targets. Returns rates, converted amounts and rate date. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/currency-convert"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "geo_ip",
      "name": "Geo IP",
      "description": "IP geolocation for IPv4/IPv6: country, region, city, coordinates, timezone, ASN, ISP/org, EU flag, private-range detection. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/geo-ip"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "rss_feed",
      "name": "RSS Feed",
      "description": "Fetch and parse any RSS 2.0 or Atom feed into clean JSON: title, link, published date, author, summary, optional full text content and categories per item. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/rss-feed"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    },
    {
      "id": "crypto_ohlcv",
      "name": "Crypto OHLCV",
      "description": "Historical OHLCV candles for any major crypto pair (Binance, Coinbase fallback): intervals 1m-1w, up to 500 candles, with period summary (high, low, volume, change %). Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/crypto-ohlcv"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.02"
    },
    {
      "id": "ens_resolve",
      "name": "ENS Resolve",
      "description": "Resolve an ENS name to its Ethereum address plus text records (url, com.twitter, avatar, ...) via on-chain calls. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.",
      "tags": [
        "x402",
        "pay-per-call",
        "data"
      ],
      "examples": [
        "POST https://agent-margin-router-production.up.railway.app/ens-resolve"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x-price-usd": "0.01"
    }
  ],
  "x-mcp": {
    "url": "https://agent-margin-router-production.up.railway.app/mcp",
    "transport": "streamable-http",
    "manifest": "https://agent-margin-router-production.up.railway.app/.well-known/mcp.json"
  },
  "x-openapi": "https://agent-margin-router-production.up.railway.app/openapi.json",
  "x-llms-txt": "https://agent-margin-router-production.up.railway.app/llms.txt"
}

Activity (audit trail)

Card history

Endpoints

Skills · 16 declared · mapped to canonical taxonomy

Health · last 1 probes

Cheaper or better alternatives per-skill

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Audit-grade evidence bundle

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