SignalLayer

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io.github.xavierleterrible-hub/signallayerv2.1.1

Machine-native tools for autonomous agents with free routing and x402 USDC pay-per-call.

AI & Agents Crypto & Web3

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Call this server's tools from your browser. Nothing to install.

https://signallayer.floot.app/_api/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

agent_preflight Read-only

Inspects public x402 terms or a Base recipient and returns decision.verdict, score, confidence, payment observations, evidence, warnings, freshness and nextActions. It identifies observable mismatches but cannot guarantee safety or authorize spending. Before paying, transferring to, or interacting with an unfamiliar machine resource, x402 endpoint, recipient, or Base address. Do NOT use when: You only need market execution conditions or webpage extraction. Price: $0.01 USDC per call via x402 V2 with separately authorized payment. If unsure, use the free signal_layer_router.

targetstring, required

intentstring

routingIdstring

maxPriceUsdnumber

expectedNetworkstring

Tools (5)

agent_preflight

read-only

Argument	Type	Description
intent	string
target*	string
routingId	string
maxPriceUsd	number
expectedNetwork	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "target"
  ],
  "properties": {
    "intent": {
      "enum": [
        "pay",
        "interact",
        "transfer",
        "unknown"
      ],
      "type": "string",
      "default": "pay"
    },
    "target": {
      "type": "string",
      "minLength": 3
    },
    "routingId": {
      "type": "string",
      "maxLength": 80,
      "minLength": 5
    },
    "maxPriceUsd": {
      "type": "number",
      "minimum": 0
    },
    "expectedNetwork": {
      "type": "string"
    }
  }
}

market_execution_intel

Analyzes current Base ERC-20 exact-in swap quotes without executing trades. Returns quote-derived buy amount, network-cost bps, size-impact estimate, decision, evidence, warnings and freshness. Quotes can change; no signing or investment advice. Before an exact-in ERC-20 swap on Base when current quote-derived execution conditions, network cost, and size sensitivity matter. Do NOT use when: You need generic historical prices, personalized investment advice, or a signed transaction. Price: $0.03 USDC per call via x402 V2 with separately authorized payment. If unsure, use the free signal_layer_router.

read-only

Argument	Type	Description
amount*	string
buyToken*	string
routingId	string
sellToken*	string
buyTokenDecimals*	integer
sellTokenDecimals*	integer

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "sellToken",
    "buyToken",
    "amount",
    "sellTokenDecimals",
    "buyTokenDecimals"
  ],
  "properties": {
    "amount": {
      "type": "string",
      "pattern": "^\\d+(?:\\.\\d+)?$"
    },
    "buyToken": {
      "type": "string",
      "pattern": "^0x[a-fA-F0-9]{40}$"
    },
    "routingId": {
      "type": "string",
      "maxLength": 80,
      "minLength": 5
    },
    "sellToken": {
      "type": "string",
      "pattern": "^0x[a-fA-F0-9]{40}$"
    },
    "buyTokenDecimals": {
      "type": "integer",
      "maximum": 36,
      "minimum": 0
    },
    "sellTokenDecimals": {
      "type": "integer",
      "maximum": 36,
      "minimum": 0
    }
  }
}

signal_layer_catalog

Free inventory returning service, version, defaultEntryPoint and the four actionable primitives with capabilities and prices; the catalog tool itself is omitted. This is not a task router. If the correct tool is uncertain, prefer signal_layer_router.

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}

signal_layer_router

Free deterministic task-to-tool router, not a full catalog. Returns match, recommendedTool, routingConfidence, reason, missingRequiredInputs and readyToCall HTTP/MCP arguments for the best eligible primitive, or an explicit no_match when nothing fits. It may recommend a paid tool but never authorizes payment; check the live x402 challenge and obtain user approval before spending.

read-only

Argument	Type	Description
task*	string
amount	string
fields	array
target	string
network	string
buyToken	string
sellToken	string
maxPriceUsd	number
buyTokenDecimals	integer
sellTokenDecimals

structured_extract

Extracts requested fields from public webpages, returning structured values, field-level evidence, confidence, freshness and partial-result warnings. Missing facts remain null. When requested facts exist on a public webpage but compact structured JSON is needed instead of browsing and parsing the page. Do NOT use when: The source is already structured or the task is generic web search. Price: $0.02 USDC via x402. Use signal_layer_router for free tool selection.

read-only

Argument	Type	Description
url*	string
fields*	array
routingId	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url",
    "fields"
  ],
  "properties": {
    "url": {
      "type": "string",
      "format": "uri"
    },
    "fields": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 120,
        "minLength": 1
      },
      "maxItems": 20,
      "minItems": 1
    },
    "routingId": {
      "type": "string",
      "maxLength": 80,
      "minLength": 5
    }
  }
}