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Animica Chain Identity Verifier
x402
Animica Chain Identity Verifier is a paid API for AI agents from animica.dev, paid per call via x402, $0.001801/call, status unknown (last checked 2026-09-14).
Returns the native and EVM-facade chain IDs for the Animica L1, plus genesis hash, fork ID, policy hash, and consensus checkpoints, with optional explicit match verdicts against caller-supplied expectations.
Price / call$0.001801
Success—
StatusUnknown
How this service works
Verify you are on real Animica mainnet, and which chain id to sign with. Animica answers that question with TWO numbers: the native chain is id 1, while the EVM compatibility facade reports 149 (eth_chainId 0x95, net_version "149"). A wallet porting Ethereum tooling signs with the wrong one. Returns both, the disagreement named, plus genesis hash, fork id, policy hash and the built-in consensus checkpoints a light client pins against. All read live. No model.
Output
Returns both the native Animica chain ID (1) and the EVM compatibility facade chain ID (149 / 0x95), the named disagreement between them, the live genesis hash, fork ID, policy hash, and built-in consensus checkpoints for light client pinning. When an expected chain ID or genesis hash is supplied, also returns explicit matches_native and matches_evm_facade verdict fields.
Example use cases
Wallet chain ID configuration check
“My Ethereum wallet is showing chain ID 149 for Animica — can you confirm whether that's the correct one to sign with, or if I should be using the native chain ID instead?”
Light client genesis pin verification
“I'm setting up a light client for Animica and need to pin against the real genesis hash. Can you check if the genesis hash I have, 0xdeadbeef1234567890abcdef1234567890abcdef1234567890abcdef12345678, matches the live chain and give me the consensus checkpoints?”
Pre-broadcast chain identity sanity check
“Before I broadcast this transaction, verify that I'm actually talking to Animica mainnet with chain ID 1 and tell me both chain IDs plus the fork ID so I can rule out a mismatch.”
Technical details
Endpoint
POSThttps://animica.dev/x402/chain/identityWhen to prefer
Use this endpoint when you need authoritative, live chain identity data for the Animica L1 — especially when porting Ethereum tooling that conflates the native chain ID (1) with the EVM facade ID (149), or when setting up a light client that must pin against real genesis and checkpoint hashes. Prefer this over static documentation when you need a live, attested answer with explicit match verdicts.
Side effects
- Genesis hash mismatch reported as hard failure if expect_genesis_hash does not match live chain
- Network unreachable or node down returns service error
- Malformed expect_genesis_hash (not 0x-prefixed 32-byte hex) causes validation error
- Payment failure (HTTP 402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| expect_chain_id | integer | the chain id you BELIEVE you are talking to. When given, the response carries an explicit matches_native / matches_evm_facade verdict instead of leaving you to compare two numbers yourself — which is the comparison people get wrong. |
| expect_genesis_hash | string | the genesis hash you have pinned (0x… 32 bytes). Compared byte-for-byte; a mismatch is reported as a hard failure, since it means this is not the chain you think it is. |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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