Animica
Commit now, reveal to everyone later: the paid call returns a commitment sha3_256(secret||salt) and a commit id; GET /x402/random/reveal/{commit_id} is FREE, public and idempotent, and discloses the secret, the salt, the raw draw and the node's attestation so anyone — not just the buyer — can check the commitment. Reveal delay 0..604800s. For games, sealed-bid rounds and auditable draws. Trust model, stated plainly: the commitment binds the outcome from the moment you publish it, and the reveal proves the secret came from a node-signed draw — it does NOT prove the operator discarded no draws before committing, so publish the commitment to your players before the round.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required. Your request as sent is not usable: send a JSON object body with content-type: application/json",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"decimals": 6
},
"payTo": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://animica.dev/x402/random/commit",
"description": "Commit now, reveal to everyone later: the paid call returns a commitment sha3_256(secret||salt) and a commit id; GET /x402/random/reveal/{commit_id} is FREE, public and idempotent, and discloses the secret, the salt, the raw draw and the node's attestation so anyone — not just the buyer — can check the commitment. Reveal delay 0..604800s. For games, sealed-bid rounds and auditable draws.",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"memo": {
"type": "string",
"required": false,
"description": "up to 256 printable ASCII chars, published verbatim at reveal (bind the commitment to your round/bet id)"
},
"request_id": {
"type": "string",
"required": false,
"description": "your own tag; mixed into the DRNG seed that produced the secret"
},
"reveal_after_seconds": {
"type": "integer",
"required": false,
"description": "seconds until the free reveal opens, 0..604800 (default 0 = revealable immediately)"
}
}
},
"output": {
"type": "json",
"description": "commit_id, commitment, algorithm, reveal_after (unix seconds), reveal_url, source, health, attestation (the draw is NOT disclosed yet), verification, payment metadata"
}
},
"maxAmountRequired": "1940",
"maxTimeoutSeconds": 60
},
{
"asset": "ANM",
"extra": {
"unit": "nANM",
"native": true,
"chain_id": 1,
"decimals": 9,
"rate_side": "bid",
"how_to_pay": "Sign a TRANSFER of at least `amount` nANM to payTo on Animica (chainId 1) and send the signed raw transaction as payload.rawTransaction. You pay the chain fee; we submit it. Because we sponsor no gas on this lane, it is priced 25% below the USDC price.",
"rate_source": "nonkyc",
"genesis_hash": "0xa0892158cf997c56e91d0aa12e60c36037dae34800a2b54111a8fa17ec88b7de",
"price_display": "37.781413102 ANM",
"usd_equivalent": "0.001455",
"usd_list_price": "0.001940",
"discount_percent": 25,
"rate_observed_at": "2026-09-24T05:14:35.000Z",
"rate_usd_per_anm": "0.000038511"
},
"payTo": "anim1zqpsmegc0qcvzjfukm89xs0zeu3eqyyyel7kelehuszvwfarqypky2gr946ga",
"scheme": "exact",
"network": "animica:1",
"mimeType": "application/json",
"resource": "https://animica.dev/x402/random/commit",
"description": "Commit now, reveal to everyone later: the paid call returns a commitment sha3_256(secret||salt) and a commit id; GET /x402/random/reveal/{commit_id} is FREE, public and idempotent, and discloses the secret, the salt, the raw draw and the node's attestation so anyone — not just the buyer — can check the commitment. Reveal delay 0..604800s. For games, sealed-bid rounds and auditable draws.",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"memo": {
"type": "string",
"required": false,
"description": "up to 256 printable ASCII chars, published verbatim at reveal (bind the commitment to your round/bet id)"
},
"request_id": {
"type": "string",
"required": false,
"description": "your own tag; mixed into the DRNG seed that produced the secret"
},
"reveal_after_seconds": {
"type": "integer",
"required": false,
"description": "seconds until the free reveal opens, 0..604800 (default 0 = revealable immediately)"
}
}
},
"output": {
"type": "json",
"description": "commit_id, commitment, algorithm, reveal_after (unix seconds), reveal_url, source, health, attestation (the draw is NOT disclosed yet), verification, payment metadata"
}
},
"maxAmountRequired": "37781413102",
"maxTimeoutSeconds": 60
}
],
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"memo": "commit-reveal example"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"properties": {
"memo": {
"type": "string",
"description": "up to 256 printable ASCII chars, published verbatim at reveal (bind the commitment to your round/bet id)"
},
"request_id": {
"type": "string",
"description": "your own tag; mixed into the DRNG seed that produced the secret"
},
"reveal_after_seconds": {
"type": "integer",
"description": "seconds until the free reveal opens, 0..604800 (default 0 = revealable immediately)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
}
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
}
}
},
"discoverable": true
}
},
"x402Version": 1
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.00541 USDC on Base to 0x5D17…B2aCD. The signed payment is good for 1 minute.
- Paid to
- 0x5D17…B2aCD
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 5410 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- anim1z…946ga
- Token contract
- ANM
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"decimals": 6
},
"payTo": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
"amount": "5410",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "ANM",
"extra": {
"unit": "nANM",
"native": true,
"chain_id": 1,
"decimals": 9,
"rate_side": "bid",
"how_to_pay": "Sign a TRANSFER of at least `amount` nANM to payTo on Animica (chainId 1) and send the signed raw transaction as payload.rawTransaction. You pay the chain fee; we submit it. Because we sponsor no gas on this lane, it is priced 25% below the USDC price.",
"rate_source": "nonkyc",
"genesis_hash": "0xa0892158cf997c56e91d0aa12e60c36037dae34800a2b54111a8fa17ec88b7de",
"price_display": "52.626799844 ANM",
"usd_equivalent": "0.004057",
"usd_list_price": "0.005410",
"discount_percent": 25,
"rate_observed_at": "2026-08-20T04:12:11.000Z",
"rate_usd_per_anm": "0.00007709"
},
"payTo": "anim1zqpsmegc0qcvzjfukm89xs0zeu3eqyyyel7kelehuszvwfarqypky2gr946ga",
"amount": "52626799844",
"scheme": "exact",
"network": "animica:1",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"memo": "commit-reveal example"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"properties": {
"memo": {
"type": "string",
"description": "up to 256 printable ASCII chars, published verbatim at reveal (bind the commitment to your round/bet id)"
},
"request_id": {
"type": "string",
"description": "your own tag; mixed into the DRNG seed that produced the secret"
},
"reveal_after_seconds": {
"type": "integer",
"description": "seconds until the free reveal opens, 0..604800 (default 0 = revealable immediately)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
}
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
}
}
},
"discoverable": true
},
"animica": {
"name": "Commit-reveal randomness (public audit trail)",
"price": "0.005410",
"terms": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"pay_to": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
"scheme": "exact",
"network": "eip155:8453",
"chain_id": 8453,
"amount_atomic": "5410"
},
"catalog": "https://animica.dev/.well-known/x402",
"openapi": "https://animica.dev/x402/openapi.json",
"product": "random_commit",
"currency": "USDC",
"provider": "Animica",
"description": "Commit now, reveal to everyone later: the paid call returns a commitment sha3_256(secret||salt) and a commit id; GET /x402/random/reveal/{commit_id} is FREE, public and idempotent, and discloses the secret, the salt, the raw draw and the node's attestation so anyone — not just the buyer — can check the commitment. Reveal delay 0..604800s. For games, sealed-bid rounds and auditable draws. Trust model, stated plainly: the commitment binds the outcome from the moment you publish it, and the reveal proves the secret came from a node-signed draw — it does NOT prove the operator discarded no draws before committing, so publish the commitment to your players before the round.",
"content_type": "application/json",
"x402_version": 2,
"documentation": "https://animica.dev/x402#product-random_commit"
},
"discovery": {
"info": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"memo": {
"type": "string",
"required": false,
"description": "up to 256 printable ASCII chars, published verbatim at reveal (bind the commitment to your round/bet id)"
},
"request_id": {
"type": "string",
"required": false,
"description": "your own tag; mixed into the DRNG seed that produced the secret"
},
"reveal_after_seconds": {
"type": "integer",
"required": false,
"description": "seconds until the free reveal opens, 0..604800 (default 0 = revealable immediately)"
}
}
},
"output": {
"type": "json",
"description": "commit_id, commitment, algorithm, reveal_after (unix seconds), reveal_url, source, health, attestation (the draw is NOT disclosed yet), verification, payment metadata"
},
"entropy": {
"note": "observed on the gateway's own readiness draw, published unpaid so the trust model is knowable before purchase; the same fields ride verbatim on every paid response",
"model": "os.urandom CSPRNG",
"source": "software-fallback",
"vendor": "os",
"attested": false,
"is_quantum": false,
"is_hardware": false,
"observed_at": "2026-08-20T04:13:18.489Z",
"health_passed": true,
"signer_backend": "software",
"min_entropy_per_byte": 7.8161
}
},
"discoverable": true
}
}Provenance
- Seen in the source catalog
- 2026-08-20 04:13Z
- Last indexed by Roundhouse
- 2026-09-19 03:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 05:15Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 25 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Animica and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Animica' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://animica.dev/x402/random/commit, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.