> For the complete documentation index, see [llms.txt](https://docs.ticko.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ticko.xyz/api-documentation/agent-key/rest-api/create-api-key.md).

# Create API Key

## Create API Key

> Creates or replaces an API key / Agent key authorization. Requires user wallet signing.\
> \
> \*\*Signing Type: B\*\*\
> \
> \*\*Rate-limit weight\*\*\
> \
> \- \*\*By IP:\*\* \`1\`\
> \- \*\*By address:\*\* \`40\`

```json
{"openapi":"3.1.0","info":{"title":"Ticko API","version":"1.0"},"tags":[{"name":"API Key","description":"Manage Agent keys (API keys): approve, revoke, renew, and list. Write endpoints are signed (Signing Type B) with the user wallet key."}],"servers":[{"url":"https://api.testnet.ticko.xyz/v1","description":"Testnet"}],"paths":{"/account/approve-agent":{"post":{"operationId":"createAPIKey","summary":"Create API Key","tags":["API Key"],"description":"Creates or replaces an API key / Agent key authorization. Requires user wallet signing.\n\n**Signing Type: B**\n\n**Rate-limit weight**\n\n- **By IP:** `1`\n- **By address:** `40`","requestBody":{"required":true,"content":{"application/json":{"schema":{"allOf":[{"type":"object","properties":{"agent_address":{"type":"string","description":"API key / Agent key address. Must not already have a TradeVM account."},"authorized_address":{"type":"string","description":"Account the key is authorized to operate. Must be the signer wallet address or one of its sub-account addresses."},"valid_days":{"type":"integer","description":"Validity period, from 1 to 180 days."},"label":{"type":"string","description":"Key label, unique within the authorized account. Must match `^[A-Za-z0-9](?:[A-Za-z0-9_-]{0,30}[A-Za-z0-9])?$`. If the label already exists, the new Agent key replaces the old one."}},"required":["agent_address","authorized_address","valid_days","label"]},{"$ref":"#/components/schemas/SigningFieldsB"}]}}}},"responses":{"200":{"description":"Success","content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/Envelope"},{"type":"object","properties":{"data":{"type":"object","properties":{"tx_hash":{"type":"string","description":"Transaction hash."},"agent_address":{"type":"string","description":"API key / Agent key address."},"label":{"type":"string","description":"Key label."},"authorized_address":{"type":"string","description":"Authorized account."},"valid_days":{"type":"integer","description":"Validity period in days."},"expires_at":{"type":"integer","description":"Expiration timestamp."},"replaced_agent_address":{"type":["string","null"],"description":"Replaced key address when the label already existed."}}}}}]}}}}}}}},"components":{"schemas":{"SigningFieldsB":{"type":"object","required":["ticko_chain","signature_chain_id","signer_address","nonce","expires_after","signature"],"properties":{"ticko_chain":{"type":"string","enum":["Testnet"],"description":"Ticko business environment. Use `Testnet`. (`Mainnet` is coming soon.) Encoded into the signed EIP-712 struct as `tickoChain`."},"signature_chain_id":{"type":"integer","enum":[1],"description":"EIP-712 domain chain ID. Currently only `1` (Ethereum) is supported. Sets the domain `chainId`; it is not part of the signed struct."},"signer_address":{"type":"string","description":"Address of the user wallet key that signs the request."},"nonce":{"type":"integer","description":"Millisecond timestamp nonce. Must be unique per signer."},"expires_after":{"type":"integer","description":"Millisecond timestamp after which the request expires."},"signature":{"$ref":"#/components/schemas/Signature"}}},"Signature":{"type":"object","required":["r","s","v"],"description":"ECDSA signature over the EIP-712 `signing_hash`.","properties":{"r":{"type":"string","description":"32-byte hex string with `0x` prefix."},"s":{"type":"string","description":"32-byte hex string with `0x` prefix."},"v":{"type":"integer","enum":[27,28],"description":"Recovery identifier, `27` or `28`."}}},"Envelope":{"type":"object","description":"Standard success response envelope. `data` is defined per endpoint.","properties":{"code":{"type":"string","description":"`\"0\"` on success."},"msg":{"type":"string","description":"Empty on success."},"trace_code":{"type":"string","description":"Backend trace identifier. Empty on success."}}}}}}
```


---

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