Anchor X402 Verifiable RNG — Signed Random Integer Roll

Name: Anchor X402 Verifiable RNG — Signed Random Integer Roll
Price: 0.001 USD

x402

Anchor X402 Verifiable RNG — Signed Random Integer Roll is a paid API for AI agents from api.anchor-x402.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Returns one or more cryptographically-random integers signed by a treasury key, providing a drop-in verifiable random function (VRF) for games and applications.

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

Verifiable RNG — cryptographically-random integer(s) signed by the treasury key. Drop-in VRF for game studios. $0.001 USDC.

Output

Returns one or more random integers accompanied by a cryptographic signature from the treasury key, allowing callers to independently verify the randomness was not manipulated. The signed payload binds the output to the specific request.

Example use cases

Example prompt

“Roll 3 random integers between 1 and 100 for my on-chain game round — I need each result cryptographically signed by the treasury key so players can verify the roll wasn't tampered with.”

Technical details

Endpoint

POSThttps://api.anchor-x402.com/v1/roll

When to prefer

Choose this endpoint when you need provably fair, verifiable randomness where players, users, or auditors must be able to independently confirm the result was not predetermined or manipulated. Ideal for game studios needing a drop-in VRF without running their own beacon, NFT trait generation requiring on-chain verifiability, or any application where cryptographic proof of randomness integrity is required. At $0.001 USDC per call it is cost-effective for high-frequency gaming scenarios.

Side effects

Payment not included or insufficient — 402 response requiring $0.001 USDC via x402 protocol
Invalid range parameters (e.g. min >= max) — 400 bad request
Request for zero or negative count of integers — 400 validation error
Treasury key signing service unavailable — 503 service unavailable
Rate limiting exceeded — 429 too many requests

Input

{
  "input": {
    "body": {
      "low": 1,
      "high": 100,
      "count": 3,
      "label": "qa-test-game-round"
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "count": 3,
  "label": "qa-test-game-round",
  "range": [
    1,
    100
  ],
  "domain": "anchor-x402/roll/v1",
  "result": [
    36,
    68,
    62
  ],
  "scheme": "eip191",
  "signer": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
  "signature": "0xbddba170cffc3c9691a878aeaf9a56fe24b163b305253cf867a2085e3f17d9467eac17f57c56d4617cfbebf80e0ef82181412bd41c0fabd2bc9b6e6300ea63a61b",
  "commitment": null,
  "input_hash": "79ef6e517f1ef9cf8dbebf88fb0e8dad36aa2c11243dcc09c52a9d3ec2f5dd35",
  "result_hash": "81123c53f2e0d1e3c6c8efcbf2b2f0530319abd5988711f5231d7dd8a2d13f77"
}

Schema · Response

{
  "type": "json",
  "example": {
    "count": 1,
    "label": "treasure_drop_42",
    "range": [
      1,
      100
    ],
    "domain": "anchor-x402/roll/v1",
    "result": [
      47
    ],
    "scheme": "eip191",
    "signer": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
    "signature": "0x6b3e2a7c…",
    "commitment": null,
    "input_hash": "f4a1c5e3b9d8a2e0c7b4f6d9e1a3c8b5f7d2e4a9c1b6e8f3d5a7c2b4e9f1d6a8",
    "result_hash": "8a6d1f9e4b2c7a3e5f0c9b8a4d2f6e1c3b7a5f9d2e8c4b6a1f3e7d5c9b2a4f6e"
  }
}

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How this service works

Verifiable RNG — cryptographically-random integer(s) signed by the treasury key. Drop-in VRF for game studios. $0.001 USDC.

Output

Technical details

Endpoint

POSThttps://api.anchor-x402.com/v1/roll

When to prefer

Side effects

Payment not included or insufficient — 402 response requiring $0.001 USDC via x402 protocol
Invalid range parameters (e.g. min >= max) — 400 bad request
Request for zero or negative count of integers — 400 validation error
Treasury key signing service unavailable — 503 service unavailable
Rate limiting exceeded — 429 too many requests

Input

{
  "input": {
    "body": {
      "low": 1,
      "high": 100,
      "count": 3,
      "label": "qa-test-game-round"
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "count": 3,
  "label": "qa-test-game-round",
  "range": [
    1,
    100
  ],
  "domain": "anchor-x402/roll/v1",
  "result": [
    36,
    68,
    62
  ],
  "scheme": "eip191",
  "signer": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
  "signature": "0xbddba170cffc3c9691a878aeaf9a56fe24b163b305253cf867a2085e3f17d9467eac17f57c56d4617cfbebf80e0ef82181412bd41c0fabd2bc9b6e6300ea63a61b",
  "commitment": null,
  "input_hash": "79ef6e517f1ef9cf8dbebf88fb0e8dad36aa2c11243dcc09c52a9d3ec2f5dd35",
  "result_hash": "81123c53f2e0d1e3c6c8efcbf2b2f0530319abd5988711f5231d7dd8a2d13f77"
}

Schema · Response

{
  "type": "json",
  "example": {
    "count": 1,
    "label": "treasure_drop_42",
    "range": [
      1,
      100
    ],
    "domain": "anchor-x402/roll/v1",
    "result": [
      47
    ],
    "scheme": "eip191",
    "signer": "0x127462e296fAc1A7F5cF33bA57bB2f0FFf5cD0B6",
    "signature": "0x6b3e2a7c…",
    "commitment": null,
    "input_hash": "f4a1c5e3b9d8a2e0c7b4f6d9e1a3c8b5f7d2e4a9c1b6e8f3d5a7c2b4e9f1d6a8",
    "result_hash": "8a6d1f9e4b2c7a3e5f0c9b8a4d2f6e1c3b7a5f9d2e8c4b6a1f3e7d5c9b2a4f6e"
  }
}