Fallback
Tiny paid recovery and decision utilities for autonomous agents.
Sollte ich dies verwenden
Qualität und Sicherheit
A
Basierend auf einer automatisierten Analyse der Tool-Definitionen und der Einhaltung des Protokolls.
Kontextkosten
~1,882Tokens (Tool-Definitionen)
~4.3 KBTypische Antwortgröße
Mittlere Auswirkung auf die Aufmerksamkeit (1.47% von 128k Kontext)
Dies ist die ungefähre Anzahl der Tokens, die jedes Mal verbraucht werden, wenn die Tools des Servers in den Kontext eines Modells geladen werden. Höhere Werte verringern die Aufmerksamkeit, die für andere Aufgaben verfügbar ist.
Installieren
Installation mit einem Klick
Fügen Sie dies Ihrer Datei `claude_desktop_config.json` hinzu:
{
"mcpServers": {
"fallback-agent-tools": {
"url": "https://fallback.factrail.online/mcp"
}
}
}Remote-Endpunkte
https://fallback.factrail.online/mcpstreamable-httpWas es kann
Tool-Inventar
Tools (4)
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🟢source_route(goal, domain, start_url, preferred_formats, require_official, ...)
Find likely authoritative or machine-readable sources when you know what information you need but not where to retrieve it. Provide a goal and optional publisher domain or start URL; it returns ranked candidate routes and bounded evidence. Use it before blind searching. Do not use it when you already have the correct source or only need reasoning over supplied context. Price: $0.02 USD per call via x402.
Eingabe-Schema
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 3,
"maxLength": 500
},
"domain": {
"type": "string",
"maxLength": 253,
"format": "hostname",
"pattern": "^(?=.{1,253}\\.?$)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[-0-9a-zA-Z]{0,61}[0-9a-zA-Z])?)*\\.?$"
},
"start_url": {
"type": "string",
"maxLength": 2048
},
"preferred_formats": {
"maxItems": 7,
"type": "array",
"items": {
"type": "string",
"enum": [
"json",
"csv",
"xml",
"rss",
"api",
"bulk_download",
"html"
]
}
},
"require_official": {
"default": false,
"type": "boolean"
},
"max_candidates": {
"default": 5,
"type": "integer",
"minimum": 1,
"maximum": 10
}
},
"required": [
"goal"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}⚪error_route(goal, request, response, error, attempt)
Diagnose a failed API, HTTP, MCP, or tool request and return a bounded safe next action. Use it after a request fails when the safe next step is unclear. Provide a status, response, or error text; it does not execute requests or verify undocumented fixes. Price: $0.002 USD per call via x402.
Eingabe-Schema
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 1,
"maxLength": 500
},
"request": {
"type": "object",
"properties": {
"method": {
"type": "string",
"maxLength": 16
},
"url": {
"type": "string",
"maxLength": 2048
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 2048
}
},
"body": {}
},
"additionalProperties": false
},
"response": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"minimum": 100,
"maximum": 599
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 2048
}
},
"body": {
"type": "string",
"maxLength": 8192
}
},
"additionalProperties": false
},
"error": {
"type": "string",
"maxLength": 2048
},
"attempt": {
"type": "integer",
"minimum": 1,
"maximum": 100
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}⚪request_repair(goal, request, response, error, error_route, ...)
Repair a failed API or HTTP request using only supplied schema and error evidence. Use after error_route identifies a request-shape or input problem. Returns the smallest justified request changes and abstains when evidence is insufficient. Price: $0.005 USD per call via x402.
Eingabe-Schema
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 1,
"maxLength": 500
},
"request": {
"type": "object",
"properties": {
"method": {
"type": "string",
"minLength": 1,
"maxLength": 16
},
"url": {
"type": "string",
"maxLength": 2048
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 4096
}
},
"query": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"$ref": "#/$defs/__schema0"
}
},
"body": {
"$ref": "#/$defs/__schema0"
}
},
"additionalProperties": false
},
"response": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"minimum": 100,
"maximum": 599
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 4096
}
},
"body": {
"$ref": "#/$defs/__schema0"
}
},
"additionalProperties": false
},
"error": {
"type": "string",
"maxLength": 4000
},
"error_route": {
"type": "object",
"properties": {
"classification": {
"type": "string",
"enum": [
"authentication_required",
"authorization_denied",
"rate_limited",
"quota_exhausted",
"payment_required",
"payment_failed",
"schema_mismatch",
"invalid_input",
"not_found",
"method_not_allowed",
"unsupported_media_type",
"timeout",
"connection_failure",
"dns_failure",
"tls_failure",
"upstream_failure",
"service_unavailable",
"conflict",
"stale_state",
"malformed_response",
"blocked_or_challenged",
"unknown"
]
},
"retry": {
"type": "string",
"enum": [
"never",
"immediate",
"after_delay",
"after_change",
"after_auth",
"after_payment",
"unknown"
]
}
},
"required": [
"classification"
],
"additionalProperties": {}
},
"schema": {
"$ref": "#/$defs/__schema0"
},
"constraints": {
"default": {
"allow_method_change": false,
"allow_url_change": false
},
"type": "object",
"properties": {
"allow_method_change": {
"default": false,
"type": "boolean"
},
"allow_url_change": {
"default": false,
"type": "boolean"
}
},
"additionalProperties": false
}
},
"required": [
"request"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"$defs": {
"__schema0": {
"anyOf": [
{
"type": "string",
"maxLength": 8192
},
{
"type": "number"
},
{
"type": "boolean"
},
{
"type": "null"
},
{
"maxItems": 256,
"type": "array",
"items": {
"$ref": "#/$defs/__schema0"
}
},
{
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"$ref": "#/$defs/__schema0"
}
}
]
}
}
}🟢stop_search(goal, checks, remaining_routes, search_budget, risk)
Decide whether another search or paid retrieval is worth the cost based on the scope already checked. Use after several search or source checks when you need to decide whether to continue or return a scoped not-found result. It does not prove universal absence and performs no searches itself. Price: $0.003 USD per call via x402.
Eingabe-Schema
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 1,
"maxLength": 500
},
"checks": {
"default": [],
"maxItems": 40,
"type": "array",
"items": {
"type": "object",
"properties": {
"target": {
"type": "string",
"minLength": 1,
"maxLength": 300
},
"method": {
"type": "string",
"enum": [
"direct",
"search",
"documentation",
"api_catalog",
"registry",
"browser",
"other"
]
},
"result": {
"type": "string",
"enum": [
"found",
"not_found",
"inconclusive",
"error",
"blocked",
"contradictory"
]
},
"authority": {
"type": "string",
"enum": [
"primary",
"official",
"secondary",
"general",
"unknown"
]
},
"coverage": {
"type": "string",
"enum": [
"low",
"medium",
"high"
]
},
"exhaustive": {
"default": false,
"type": "boolean"
},
"checked_at": {
"type": "string",
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"
}
},
"required": [
"target",
"method",
"result",
"authority",
"coverage"
],
"additionalProperties": false
}
},
"remaining_routes": {
"default": [],
"maxItems": 20,
"type": "array",
"items": {
"type": "object",
"properties": {
"route": {
"type": "string",
"minLength": 1,
"maxLength": 300
},
"expected_value": {
"anyOf": [
{
"type": "string",
"enum": [
"low",
"medium",
"high"
]
},
{
"type": "string",
"const": "unknown"
}
]
},
"estimated_cost_usd": {
"type": "number",
"minimum": 0,
"maximum": 10000
}
},
"required": [
"route",
"expected_value"
],
"additionalProperties": false
}
},
"search_budget": {
"type": "object",
"properties": {
"calls_used": {
"type": "integer",
"minimum": 0,
"maximum": 10000
},
"calls_remaining": {
"type": "integer",
"minimum": 0,
"maximum": 10000
},
"cost_used_usd": {
"type": "number",
"minimum": 0,
"maximum": 10000
},
"cost_remaining_usd": {
"type": "number",
"minimum": 0,
"maximum": 10000
}
},
"additionalProperties": false
},
"risk": {
"default": "medium",
"type": "string",
"enum": [
"low",
"medium",
"high"
]
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}Community
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