Server definition
- Hash
- sha256:824b8032cb7304700933c4e857d471277a32c1daa64fbecd45109d9a2a6ee248
- What it is
- What a remote MCP server returned when asked what it offers: 4 tools
The blob, as servednamed by its sha256
{
"instructions": null,
"tools": [
{
"description": "Describe FreshProof, its observation semantics, current MCP price and payment network. This tool is free.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {},
"type": "object"
},
"name": "freshproof_info",
"outputSchema": null
},
{
"description": "Buy a timestamped FreshProof observation of a public HTTP/HTTPS URL. Returns final URL, observation timestamp, age, HTTP status, SHA-256 body hash, body size, ETag, Last-Modified, fetch duration, and whether the observation came from shared cache or a fresh public-network request. Set max_age=0 when a new public-network request is required. The response body itself is not returned.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"max_age": {
"description": "Maximum acceptable observation age in seconds. Defaults to 300. Set to 0 to force a fresh public-network request.",
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"url": {
"description": "Public HTTP or HTTPS URL to observe",
"format": "uri",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"name": "observe_url",
"outputSchema": null
},
{
"description": "Verify an existing FreshProof Proof Receipt without making a new network request. This free tool checks deterministic receipt integrity and optionally evaluates trust policy rules. Use it when you already have a proof_id from observe_url or verify_url and want to re-check evidence without paying for another observation. The result includes valid, decision (PASS, FAIL, or UNKNOWN), per-rule checks, and the stored receipt.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"policy": {
"additionalProperties": false,
"description": "Optional declarative trust policy. All supplied rules must pass for decision PASS; any failed rule yields FAIL. UNKNOWN is reserved for cases where FreshProof cannot make a reliable policy decision.",
"properties": {
"changed_since_content_hash": {
"description": "Prior SHA-256 response-body fingerprint. Passes when the current proof has a different content hash.",
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"content_hash_equals": {
"description": "Expected SHA-256 response-body fingerprint, including the sha256: prefix. Passes only on exact equality.",
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"final_host_equals": {
"description": "Expected lowercase hostname after redirects, for example example.com. Provide a hostname, not a full URL.",
"minLength": 1,
"type": "string"
},
"max_age_seconds": {
"description": "Maximum allowed age of the stored observation in seconds at verification time.",
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"original_host_equals": {
"description": "Expected lowercase hostname from the originally requested URL. Provide a hostname, not a full URL.",
"minLength": 1,
"type": "string"
},
"require_same_origin_redirect": {
"description": "When true, fails if the final URL origin differs from the original URL origin after redirects.",
"type": "boolean"
},
"status_in": {
"description": "Allowed HTTP status codes. The rule passes when the observed status is in this list.",
"items": {
"maximum": 599,
"minimum": 100,
"type": "integer"
},
"minItems": 1,
"type": "array"
}
},
"type": "object"
},
"proof_id": {
"description": "FreshProof proof identifier returned by observe_url or verify_url.",
"pattern": "^fp1_[a-f0-9]{64}$",
"type": "string"
}
},
"required": [
"proof_id"
],
"type": "object"
},
"name": "verify_proof",
"outputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"checks": {
"items": {
"additionalProperties": false,
"properties": {
"actual": {
"description": "Observed value used by the rule."
},
"expected": {
"description": "Expected value or condition used by the rule."
},
"pass": {
"description": "Whether this individual rule passed.",
"type": "boolean"
},
"rule": {
"description": "Policy rule that was evaluated.",
"type": "string"
}
},
"required": [
"rule",
"pass",
"actual",
"expected"
],
"type": "object"
},
"type": "array"
},
"decision": {
"description": "Overall policy decision. PASS means every supplied rule passed; FAIL means at least one supplied rule failed; UNKNOWN means a reliable decision could not be made.",
"enum": [
"PASS",
"FAIL",
"UNKNOWN"
],
"type": "string"
},
"proof_id": {
"description": "FreshProof proof identifier returned by observe_url or verify_url.",
"pattern": "^fp1_[a-f0-9]{64}$",
"type": "string"
},
"receipt": {
"additionalProperties": false,
"properties": {
"payload": {
"additionalProperties": false,
"properties": {
"content_hash": {
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"content_length": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"etag": {
"type": [
"string",
"null"
]
},
"fetch_duration_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"final_url": {
"format": "uri",
"type": "string"
},
"last_modified": {
"type": [
"string",
"null"
]
},
"method": {
"const": "GET",
"type": "string"
},
"normalized_url": {
"format": "uri",
"type": "string"
},
"observation_id": {
"type": "string"
},
"observed_at": {
"description": "ISO-8601 timestamp of the observation.",
"type": "string"
},
"original_url": {
"format": "uri",
"type": "string"
},
"status": {
"maximum": 599,
"minimum": 100,
"type": "integer"
},
"version": {
"const": "freshproof-receipt-v1",
"type": "string"
}
},
"required": [
"version",
"observation_id",
"normalized_url",
"original_url",
"final_url",
"observed_at",
"method",
"status",
"content_hash",
"content_length",
"etag",
"last_modified",
"fetch_duration_ms"
],
"type": "object"
},
"proof_id": {
"description": "FreshProof proof identifier returned by observe_url or verify_url.",
"pattern": "^fp1_[a-f0-9]{64}$",
"type": "string"
},
"receipt_hash": {
"description": "SHA-256 content address of the canonical Proof Receipt payload.",
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
}
},
"required": [
"proof_id",
"receipt_hash",
"payload"
],
"type": "object"
},
"valid": {
"description": "True when the stored receipt passes deterministic integrity verification.",
"type": "boolean"
}
},
"required": [
"proof_id",
"valid",
"decision",
"checks",
"receipt"
],
"type": "object"
}
},
{
"description": "Verify what is observable at a public URL before an agent trusts, pays, or acts. This paid tool combines observe_url and verify_proof in one call: it buys an observation, creates or returns a Proof Receipt, and evaluates the supplied trust policy. Set max_age=0 when current public-network evidence is required. The result contains both observation evidence and verification with decision PASS, FAIL, or UNKNOWN.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"max_age": {
"description": "Maximum acceptable observation age in seconds. Defaults to 300. Set to 0 to require a fresh public-network request before policy evaluation.",
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"policy": {
"additionalProperties": false,
"description": "Declarative trust policy evaluated against the resulting Proof Receipt.",
"properties": {
"changed_since_content_hash": {
"description": "Prior SHA-256 response-body fingerprint. Passes when the current proof has a different content hash.",
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"content_hash_equals": {
"description": "Expected SHA-256 response-body fingerprint, including the sha256: prefix. Passes only on exact equality.",
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"final_host_equals": {
"description": "Expected lowercase hostname after redirects, for example example.com. Provide a hostname, not a full URL.",
"minLength": 1,
"type": "string"
},
"max_age_seconds": {
"description": "Maximum allowed age of the stored observation in seconds at verification time.",
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"original_host_equals": {
"description": "Expected lowercase hostname from the originally requested URL. Provide a hostname, not a full URL.",
"minLength": 1,
"type": "string"
},
"require_same_origin_redirect": {
"description": "When true, fails if the final URL origin differs from the original URL origin after redirects.",
"type": "boolean"
},
"status_in": {
"description": "Allowed HTTP status codes. The rule passes when the observed status is in this list.",
"items": {
"maximum": 599,
"minimum": 100,
"type": "integer"
},
"minItems": 1,
"type": "array"
}
},
"type": "object"
},
"url": {
"description": "Public HTTP or HTTPS URL to observe and verify.",
"format": "uri",
"type": "string"
}
},
"required": [
"url",
"policy"
],
"type": "object"
},
"name": "verify_url",
"outputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"observation": {
"additionalProperties": false,
"properties": {
"age_seconds": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"content_hash": {
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"content_length": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"etag": {
"type": [
"string",
"null"
]
},
"fetch_duration_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"final_url": {
"format": "uri",
"type": "string"
},
"last_modified": {
"type": [
"string",
"null"
]
},
"observed_at": {
"description": "ISO-8601 timestamp of the observation.",
"type": "string"
},
"proof_id": {
"description": "FreshProof proof identifier returned by observe_url or verify_url.",
"pattern": "^fp1_[a-f0-9]{64}$",
"type": "string"
},
"receipt_hash": {
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"source": {
"description": "fresh_fetch means FreshProof made a new public-network request; shared_cache means a stored observation satisfied max_age.",
"enum": [
"shared_cache",
"fresh_fetch"
],
"type": "string"
},
"status": {
"maximum": 599,
"minimum": 100,
"type": "integer"
},
"url": {
"format": "uri",
"type": "string"
}
},
"required": [
"url",
"final_url",
"observed_at",
"age_seconds",
"status",
"content_hash",
"content_length",
"etag",
"last_modified",
"fetch_duration_ms",
"source",
"proof_id",
"receipt_hash"
],
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"checks": {
"items": {
"additionalProperties": false,
"properties": {
"actual": {
"description": "Observed value used by the rule."
},
"expected": {
"description": "Expected value or condition used by the rule."
},
"pass": {
"description": "Whether this individual rule passed.",
"type": "boolean"
},
"rule": {
"description": "Policy rule that was evaluated.",
"type": "string"
}
},
"required": [
"rule",
"pass",
"actual",
"expected"
],
"type": "object"
},
"type": "array"
},
"decision": {
"description": "Overall policy decision. PASS means every supplied rule passed; FAIL means at least one supplied rule failed; UNKNOWN means a reliable decision could not be made.",
"enum": [
"PASS",
"FAIL",
"UNKNOWN"
],
"type": "string"
},
"proof_id": {
"description": "FreshProof proof identifier returned by observe_url or verify_url.",
"pattern": "^fp1_[a-f0-9]{64}$",
"type": "string"
},
"receipt": {
"additionalProperties": false,
"properties": {
"payload": {
"additionalProperties": false,
"properties": {
"content_hash": {
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"content_length": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"etag": {
"type": [
"string",
"null"
]
},
"fetch_duration_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"final_url": {
"format": "uri",
"type": "string"
},
"last_modified": {
"type": [
"string",
"null"
]
},
"method": {
"const": "GET",
"type": "string"
},
"normalized_url": {
"format": "uri",
"type": "string"
},
"observation_id": {
"type": "string"
},
"observed_at": {
"description": "ISO-8601 timestamp of the observation.",
"type": "string"
},
"original_url": {
"format": "uri",
"type": "string"
},
"status": {
"maximum": 599,
"minimum": 100,
"type": "integer"
},
"version": {
"const": "freshproof-receipt-v1",
"type": "string"
}
},
"required": [
"version",
"observation_id",
"normalized_url",
"original_url",
"final_url",
"observed_at",
"method",
"status",
"content_hash",
"content_length",
"etag",
"last_modified",
"fetch_duration_ms"
],
"type": "object"
},
"proof_id": {
"description": "FreshProof proof identifier returned by observe_url or verify_url.",
"pattern": "^fp1_[a-f0-9]{64}$",
"type": "string"
},
"receipt_hash": {
"description": "SHA-256 content address of the canonical Proof Receipt payload.",
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
}
},
"required": [
"proof_id",
"receipt_hash",
"payload"
],
"type": "object"
},
"valid": {
"description": "True when the stored receipt passes deterministic integrity verification.",
"type": "boolean"
}
},
"required": [
"proof_id",
"valid",
"decision",
"checks",
"receipt"
],
"type": "object"
}
},
"required": [
"observation",
"verification"
],
"type": "object"
}
}
]
}Verify it yourself
curl -s https://api.teppi.xyz/v1/evidence/sha256:824b8032cb7304700933c4e857d471277a32c1daa64fbecd45109d9a2a6ee248 | sha256sum