> ## Documentation Index
> Fetch the complete documentation index at: https://docs.formo.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Contract

> Update a tracked smart contract by chain and address. Modify the contract ABI, display name, or event tracking configuration through the Formo API.



## OpenAPI

````yaml PUT /v0/contracts/{chain}/{address}
openapi: 3.1.0
info:
  title: Formo Public API
  description: >-
    REST API for managing Formo projects, analytics, alerts, boards, charts,
    contracts, segments, and AI chat.


    **Auth.** All endpoints require a workspace API key with the appropriate
    scopes (see `x-api-scopes`).


    **Response shape.** Successful responses return the resource directly (or `{
    data: [...], total, page, size, has_more }` for paginated lists). HTTP
    status carries success/failure; there is no envelope wrapping success
    bodies.


    **Errors.** Every non-2xx response uses the `Error` envelope: `{ error: {
    code, message, doc_url, param?, details? } }`. Branch on the
    machine-readable `code` (see `ErrorCode` enum) and follow `doc_url` to the
    matching section of the [errors
    reference](https://docs.formo.so/api/errors).


    **Idempotency.** Pass an `Idempotency-Key` header on POST/PUT/PATCH/DELETE
    to make retries safe; the response is cached for 24 h and replayed on
    duplicate keys.
  version: 0.1.0
  contact:
    name: Formo
    url: https://formo.so
servers:
  - url: https://api.formo.so
    description: API Server (boards, alerts, contracts, segments, profiles, query, import)
  - url: https://events.formo.so
    description: Events Server (event ingestion)
security:
  - WorkspaceApiKey: []
tags:
  - name: Alerts
    description: Manage project alerts and notifications
  - name: Boards
    description: Manage dashboard boards
  - name: Charts
    description: Manage charts within boards
  - name: Contracts
    description: Manage blockchain contract monitoring
  - name: Segments
    description: Manage user segments
  - name: Profiles
    description: Wallet profiles and import
  - name: Query
    description: >-
      Execute SQL queries and call pre-built analytics endpoints (KPIs, top
      pages, lifecycle, retention, revenue). Requires the query:read scope.
  - name: Events
    description: Event ingestion API (events.formo.so)
paths:
  /v0/contracts/{chain}/{address}:
    put:
      tags:
        - Contracts
      summary: Update contract
      operationId: updateContract
      parameters:
        - name: chain
          in: path
          required: true
          schema:
            type: string
        - name: address
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                address:
                  type: string
                chain:
                  type: integer
                name:
                  type: string
                abi:
                  type: string
                events:
                  type: array
                  maxItems: 10
                  items:
                    type: object
                start_block:
                  type: integer
              required:
                - address
                - chain
                - name
                - abi
                - events
      responses:
        '200':
          description: Contract updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Contract'
components:
  schemas:
    Contract:
      type: object
      properties:
        name:
          type: string
        chain:
          type: integer
        address:
          type: string
        start_block:
          type: integer
        abi:
          type: string
        events:
          type: array
          items:
            type: object
            properties:
              anonymous:
                type: boolean
              inputs:
                type: array
                items:
                  type: object
              name:
                type: string
              type:
                type: string
            required:
              - anonymous
              - inputs
              - name
              - type
      required:
        - name
        - chain
        - address
        - abi
        - events
  securitySchemes:
    WorkspaceApiKey:
      type: http
      scheme: bearer
      description: >-
        Workspace API key (e.g. `formo_xxx`). Create one in the Formo dashboard
        under Team Settings > API Keys.

````