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POST
Get a List of Fields + Create a Custom Field
Create a custom field. ⚠️ This changes the workspace’s schema rather than its data: the field appears on every record of that modality, for every caller, and removing it later is not something this API offers. Check get_apollo_typed_custom_fields first — the field you want may already exist. Writes land in the AIsa workspace, which every caller shares: the record becomes visible and editable by others, and there is no per-caller isolation.
First time? Point any MCP client at https://mcp.aisa.one/mcp — Claude Code, Codex, Cursor, VS Code and the rest. Authorization is OAuth: the client opens a browser, you click Allow once, and there is no key to paste. The commands per client, and what each call costs, are on aisa.one/mcp.
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Cost and request rules

Published reference values are not an account-specific quote or a settled charge. For endpoints supporting X-AISA-Cost-Mode: quote, obtain a free quote for your exact request before execution; reconcile the settled cost with response metadata and Usage Logs. USD amounts use 1,000,000 integer micro-USD per dollar.
  • Default request reference estimate (USD): 0.012
  • Cost contract: fixed_success
  • Settlement evidence source: request_snapshot

Authorizations

Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json
label
string

Field label.

modality
string

Entity modality (e.g., contact).

type
string

Field type (e.g., textarea).

meta
object

Additional field config.

Response

Successful response

typed_custom_fields
string[]

Created field(s) (when returned).