withoneai Basin through One
Basin is a form backend service that captures form submissions from static sites and forwards data to email, webhooks or integrations—enabling developers to handle form data without building a custom backend.
One exposes Basin through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.
How to run an action
- Find the action in the table below, or call
search_one_platform_actionswith platformbasinif it is not listed. - Call
get_one_action_knowledgewith the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters. - Call
execute_one_actionwith parameters copied from that knowledge.
Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.
Before you start
Call list_one_integrations once and confirm Basin is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.
Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.
Before a write
Creates, updates, deletes and sends land on a real Basin account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.
Actions
FormWebhooks
| Action | Method | Path | Action id |
|---|---|---|---|
| List Form Webhooks | GET | /form_webhooks |
conn_mod_def::GJgYZSfH03E::PcAtpyWETXy3F0_OW74HXw |
| Show a Form Webhook | GET | /api/v1/form_webhooks/{{id}} |
conn_mod_def::GJgYZYjlaeg::7yRHgBHDSu-QReIY4EBzMw |
| Create a Form Webhook | POST | /api/v1/form_webhooks/ |
conn_mod_def::GJgYZvLJuLI::EF0myho5RPqmmLl6xL79WA |
| Delete a Form Webhook | DELETE | /api/v1/form_webhooks/{{id}} |
conn_mod_def::GJgYZmscNjU::FmfUeTO9QhekHo9Qa4pllw |
| Update a Form Webhook | PUT | /api/v1/form_webhooks/{{ID}} |
conn_mod_def::GJgYZfX15Vw::HBJv3KBiSnWBcfiZ8Im81Q |
Forms
| Action | Method | Path | Action id |
|---|---|---|---|
| List Forms | GET | /forms |
conn_mod_def::GJgYZ3CtdKw::4Gkw6snGQwuRVQQW10husQ |
| Create Form | POST | /forms/ |
conn_mod_def::GJgYaT5d1mY::rEgA9HrkTCKmgVtisPRjLw |
| Delete a Form | DELETE | /api/v1/forms/{{id}} |
conn_mod_def::GJgYaMyofU4::gJjNRRdpQNmvVUzGs52iJw |
| Update a Form | PUT | /api/v1/forms/{{id}} |
conn_mod_def::GJgYaGoOuvA::Wij5cENdSDygs_b2bITLFA |
Projects
| Action | Method | Path | Action id |
|---|---|---|---|
| List Projects | GET | /api/v1/projects |
conn_mod_def::GJgYapLijnM::R_Ha9yfaT82NwDYZktYpSg |
| Create Project | POST | /api/v1/projects/ |
conn_mod_def::GJgYbF1oXeE::zITLyJdpS7emRPb2vxg3pw |
| Delete a Project | DELETE | /api/v1/projects/{{id}} |
conn_mod_def::GJgYa_wANkM::9WQrJHX9RsWPNt7B7lkGTg |
| Update a Project | PUT | /api/v1/projects/{{id}} |
conn_mod_def::GJgYa2uqOI4::-46eKwMeRgW1jec4Vlj0Fw |
Submissions
| Action | Method | Path | Action id |
|---|---|---|---|
| List Submissions | GET | /api/v1/submissions/ |
conn_mod_def::GJgYbNc0XOU::0o_jk98eS4qCbrv7gl8Ziw |
| Destroy a Submission | DELETE | /api/v1/submissions/{{id}} |
conn_mod_def::GJgYbhiuHBg::cUWPfHQHQ464xVdJhV7HQw |
| Update a Submission | PATCH | /api/v1/submissions/{{ID}} |
conn_mod_def::GJgYbcSW9aA::9_HZ5UTcQoaafPp8jpEeFg |
FormViews
| Action | Method | Path | Action id |
|---|---|---|---|
| List FormViews | GET | /api/v1/form_views |
conn_mod_def::GJgYabJwsQs::DDrDgYWURlCTAcu9kpI-YA |
| Show a FormView | GET | /api/v1/form_views/{{ID}} |
conn_mod_def::GJgYaiw9ozk::EIBgyy5FT8KdMQg_tyo2Hw |
Domains
| Action | Method | Path | Action id |
|---|---|---|---|
| List Domains | GET | /domains |
conn_mod_def::GJgYZLnh-fM::KJXHPkS4SxmtMR8y-NnE0g |
Form
| Action | Method | Path | Action id |
|---|---|---|---|
| Show a Form | GET | /api/v1/forms/{{id}} |
conn_mod_def::GJgYZ9jEhvk::DVyVPP1aR32C-TNMNAHPlA |
Project
| Action | Method | Path | Action id |
|---|---|---|---|
| Show a Project | GET | /api/v1/projects/{{ID}} |
conn_mod_def::GJgYav5E0Ws::4MMmyB73T-OmWOyG-nSSTQ |
Submission
| Action | Method | Path | Action id |
|---|---|---|---|
| Show a Submission | GET | /api/v1/submissions/{{ID}} |
conn_mod_def::GJgYbWmu4xo::3ACC3LhGR66QzTad2HV-zg |
When a call fails
The error comes from Basin, not from One. A 400 or 422 means your parameters do not match the schema, so re-read the knowledge and fix the field. A 401 or 403 means the connection needs re-authorizing, which no retry will fix. A 404 means the id is not on this account. A 429 means slow down. Never retry a write more than once: the first attempt may have landed.
Full catalog: https://www.withone.ai/knowledge/basin
Integration knowledge by One (withone.ai), licensed under One-Knowledge-1.0. Attribution must be preserved in derivative works.