> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ton.org/llms.txt
> Use this file to discover all available pages before exploring further.
## Submitting Feedback
If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback:
POST https://docs.ton.org/feedback
```json
{
"path": "/ecosystem/api/toncenter/v2/configuration/get-config-parameter",
"feedback": "Description of the issue"
}
```
Only submit feedback when you have something specific and actionable to report.
# Get config parameter
> Returns a specific blockchain configuration parameter. TON stores all network settings on-chain as numbered parameters. Common ones: 0 (config contract), 1 (elector), 15 (election timing), 17 (stake limits), 20-21 (gas prices), 34 (current validators). Check TON documentation for the full list.
## OpenAPI
````yaml get /api/v2/getConfigParam
openapi: 3.1.1
info:
title: TON HTTP API C++
description: >
This API enables HTTP access to TON blockchain - getting accounts and
wallets information, looking up blocks and transactions, sending messages to
the blockchain, calling get methods of smart contracts, and more.
In addition to REST API, all methods are available through a JSON-RPC
endpoint with `method` equal to method name and `params` passed as a
dictionary.
The response contains a JSON object, which always has a boolean field `ok`
and either `error` or `result`. If `ok` equals true, the request was
successful and the result of the query can be found in the `result` field.
In case of an unsuccessful request, `ok` equals false and the error is
explained in the `error`.
API Key should be sent either as `api_key` query parameter or `X-API-Key`
header
version: 2.1.1
servers:
- url: https://toncenter.com
description: TON Mainnet
- url: https://testnet.toncenter.com
description: TON Testnet
security: []
tags:
- name: Accounts
description: Information about accounts
- name: Transactions
description: Fetching and locating transactions
- name: Blocks
description: Information about blocks
- name: Run method
description: Run get-method of smart contracts
- name: Send
description: Send data to blockchain
- name: Utils
description: Some useful methods
- name: Configuration
description: Information about blockchain config
- name: RPC
description: JSON-RPC and POST endpoints
paths:
/api/v2/getConfigParam:
get:
tags:
- Configuration
summary: Get config parameter
description: >-
Returns a specific blockchain configuration parameter. TON stores all
network settings on-chain as numbered parameters. Common ones: 0 (config
contract), 1 (elector), 15 (election timing), 17 (stake limits), 20-21
(gas prices), 34 (current validators). Check TON documentation for the
full list.
operationId: getConfigParam_get
parameters:
- name: config_id
in: query
description: Parameter number
required: true
schema:
type: integer
format: int32
- name: seqno
in: query
description: Block `seqno`
required: false
schema:
type: integer
format: int32
responses:
'200':
description: >-
Returns the specified blockchain configuration parameter as a TVM
cell.
content:
application/json:
schema:
$ref: '#/components/schemas/ConfigParamResponse'
'401':
$ref: '#/components/responses/401'
'403':
$ref: '#/components/responses/403'
'422':
$ref: '#/components/responses/422_config'
'429':
$ref: '#/components/responses/429'
'504':
$ref: '#/components/responses/504'
security:
- APIKeyHeader: []
- APIKeyQuery: []
components:
schemas:
ConfigParamResponse:
type: object
additionalProperties: false
required:
- ok
- result
properties:
ok:
type: boolean
default: true
description: >-
Returns `true` if the request succeeded; otherwise `false`. See the
`error` field for details.
result:
$ref: '#/components/schemas/ConfigInfo'
description: Response data. Present only when `ok` is `true`.
'@extra':
type: string
description: >-
Optional request ID that can be passed in the request and received
back in the response. Useful for matching async responses.
ConfigInfo:
type: object
additionalProperties: false
properties:
'@type':
type: string
enum:
- configInfo
default: configInfo
description: >-
TonLib type identifier for blockchain configuration responses. Refer
to the [TonLib type
reference](/ecosystem/api/toncenter/v2-tonlib-types) for a full
list.
config:
$ref: '#/components/schemas/TvmCell'
description: The requested configuration parameter value as a TVM cell.
required:
- '@type'
- config
description: >-
Blockchain configuration data. Contains one or more config parameters as
requested. Each parameter controls different aspects of network
operation.
TvmCell:
type: object
additionalProperties: false
required:
- '@type'
- bytes
properties:
'@type':
type: string
enum:
- tvm.cell
default: tvm.cell
description: >-
TonLib type identifier for TVM cell values. Refer to the [TonLib
type reference](/ecosystem/api/toncenter/v2-tonlib-types) for a full
list.
bytes:
$ref: '#/components/schemas/Bytes'
description: TVM cell data serialized as base64.
Bytes:
type: string
x-usrv-cpp-type: ton_http::types::bytes
description: >-
Binary data encoded as base64. Used for serialized cells (BoC format),
message bodies, and smart contract code/data.
responses:
'401':
description: API key does not exist. Check for typos or generate a new key.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 401
description: HTTP status code `401`.
error:
type: string
enum:
- API key does not exist
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 401
error: API key does not exist
'403':
description: >-
API key is not allowed for this network (e.g. testnet key used on
mainnet).
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 403
description: HTTP status code `403`.
error:
type: string
enum:
- Network not allowed
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 403
error: Network not allowed
'429':
description: >-
Rate limit exceeded. Back off and retry, or use an API key for higher
limits.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 429
description: HTTP status code `429`.
error:
type: string
enum:
- Ratelimit exceeded
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 429
error: Ratelimit exceeded
'504':
description: Timeout waiting for liteserver response.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 504
description: HTTP status code `504`.
error:
type: string
enum:
- LITE_SERVER_NETWORK timeout
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 504
error: LITE_SERVER_NETWORK timeout
422_config:
description: Invalid config parameter request.
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ok
- code
- error
properties:
ok:
type: boolean
const: false
description: Always `false` for error responses.
code:
type: integer
const: 422
description: HTTP status code `422`.
error:
type: string
enum:
- failed to parse config_id
- failed to parse param
- only one of config_id or param should be specified
- param should be non-negative
'@extra':
type: string
description: Extra data passed through from the request.
example:
ok: false
code: 422
error: failed to parse config_id
securitySchemes:
APIKeyHeader:
type: apiKey
in: header
name: X-API-Key
description: >-
API key header of the form `X-API-Key: `, where `` is the
API key. Requests without a key are limited to 1 RPS. Refer to the
[authentication guide](/ecosystem/api/toncenter/v2-authentication) for
details.
APIKeyQuery:
type: apiKey
in: query
name: api_key
description: >-
API key query parameter of the form `?api_key=`, where ``
is the API key. Equivalent to the header method. Refer to the
[authentication guide](/ecosystem/api/toncenter/v2-authentication) for
details.
````