Seal any JSON in a post-quantum signed envelope: canonicalise (keys sorted, stable bytes),
Seal any JSON in a post-quantum signed envelope: canonicalise (keys sorted, stable bytes), SHA3-256, then sign that digest with ML-DSA-65 (FIPS 204, scheme 4099) — the scheme the Animica L1 admits transactions with. Buy it when a response you emit must cross a broker, cache or reseller and still be provably unaltered. Proves INTEGRITY and ANIMICA ORIGIN, not that the content is true and not anyone's real-world identity. Key and verification are free. No signature, no charge.
6000 (raw units)
price
1
calls / 30d
1
unique payers
2026-08-22
updated
Provider
animica.dev · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "6000",
"maxTimeoutSeconds": 60
},
{
"scheme": "exact",
"network": "animica:1",
"payTo": "anim1zqpsmegc0qcvzjfukm89xs0zeu3eqyyyel7kelehuszvwfarqypky2gr946ga",
"asset": "ANM",
"amount": "71270193221",
"maxTimeoutSeconds": 60
}
]Output schema
{
"animica": {
"catalog": "https://animica.dev/.well-known/x402",
"content_type": "application/json",
"currency": "USDC",
"description": "Seal any JSON in a post-quantum signed envelope: canonicalise (keys sorted, stable bytes), SHA3-256, then sign that digest with ML-DSA-65 (FIPS 204, scheme 4099) — the scheme the Animica L1 admits transactions with. Buy it when a response you emit must cross a broker, cache or reseller and still be provably unaltered. Proves INTEGRITY and ANIMICA ORIGIN, not that the content is true and not anyone's real-world identity. Key and verification are free. No signature, no charge.",
"documentation": "https://animica.dev/x402#product-pq_envelope",
"name": "Post-quantum API response envelope",
"openapi": "https://animica.dev/x402/openapi.json",
"price": "0.006000",
"product": "pq_envelope",
"provider": "Animica",
"terms": {
"amount_atomic": "6000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chain_id": 8453,
"network": "eip155:8453",
"pay_to": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
"scheme": "exact"
},
"x402_version": 2
},
"bazaar": {
"discoverable": true,
"info": {
"input": {
"method": "POST",
"type": "http"
},
"output": {
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"properties": {
"anchor_chain": {
"description": "default false. When true the signed object also carries an observed Animica chain head {height, hash}: a lower bound on when the seal happened that this gateway cannot inflate, because a block hash cannot exist before its block. Nothing is written to the chain — the head is read from a node. If the node is unreachable the call 503s and you are NOT charged.",
"type": "boolean"
},
"include_canonical_form": {
"description": "default false. Return the exact hashed bytes (only when under 8192 chars) as a debugging aid for canonicalisation interop.",
"type": "boolean"
},
"label": {
"description": "your filing tag, bound INSIDE the signature as kind \"api-response/<label>\". Up to 64 chars of [A-Za-z0-9._:- ]. Namespaced so it can never impersonate one of this gateway's own attestations.",
"type": "string"
},
"payload": {
"description": "the JSON value to seal — object, array, string, number, boolean or null. Sealed verbatim; nothing is normalised, rewritten or interpreted."
}
},
"required": [
"payload"
],
"type": "object"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"queryParams": {
"properties": {
"anchor_chain": {
"description": "true|1 to anchor to the observed chain head",
"type": "string"
},
"include_canonical_form": {
"description": "true|1 to return the exact hashed bytes",
"type": "string"
},
"label": {
"description": "same as body.label",
"type": "string"
},
"payload": {
"description": "GET callers: the payload as JSON text",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"discovery": {
"discoverable": true,
"info": {
"input": {
"bodyFields": {
"anchor_chain": {
"description": "default false. When true the signed object also carries an observed Animica chain head {height, hash}: a lower bound on when the seal happened that this gateway cannot inflate, because a block hash cannot exist before its block. Nothing is written to the chain — the head is read from a node. If the node is unreachable the call 503s and you are NOT charged.",
"required": false,
"type": "boolean"
},
"include_canonical_form": {
"description": "default false. Return the exact hashed bytes (only when under 8192 chars) as a debugging aid for canonicalisation interop.",
"required": false,
"type": "boolean"
},
"label": {
"description": "your filing tag, bound INSIDE the signature as kind \"api-response/<label>\". Up to 64 chars of [A-Za-z0-9._:- ]. Namespaced so it can never impersonate one of this gateway's own attestations.",
"required": false,
"type": "string"
},
"payload": {
"description": "the JSON value to seal — object, array, string, number, boolean or null. Sealed verbatim; nothing is normalised, rewritten or interpreted.",
"required": true,
"type": "any"
}
},
"bodyType": "json",
"method": "POST",
"queryParams": {
"anchor_chain": {
"description": "true|1 to anchor to the observed chain head",
"type": "string"
},
"include_canonical_form": {
"description": "true|1 to return the exact hashed bytes",
"type": "string"
},
"label": {
"description": "same as body.label",
"type": "string"
},
"payload": {
"description": "GET callers: the payload as JSON text",
"type": "string"
}
},
"type": "http"
},
"output": {
"description": "sealed:true, payload (verbatim), subject {mode, object, object_note, digest_alg, digest, canonical_bytes, canonical_chars, canonical_form, canonical_form_omitted, canonicalisation}, envelope {type, kind, alg, scheme_id, domain, chain_id, prehash, digest, signed_at, canonical_form, public_key, key_id, signature}, chain_anchor {height, hash, chain_id, block_timestamp, inside_signature, published_on_chain:false, means} or null, label, kind, verification {proves, does_not_prove, steps, offline, free_endpoints, issuer_key_id}, inference:null, computation {deterministic:true, model_used:false}, sealed_at, took_ms",
"type": "json"
}
}
}
}Use it
curl
curl "https://animica.dev/x402/pq/envelope" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://animica.dev/x402/pq/envelope");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://animica.dev/x402/pq/envelope")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/7541.json, and this resource appears in /discovery/resources and /discovery/search.