Accelo

Connect your client's Accelo with a sign-in, and call its API through Operate As.

Website
accelo.com
Connects by
Signing in with Accelo
Category
Projects and tasks
Services
1
Tools
Pass-through only
ServiceKey
Acceloaccelo

Your client also types their deployment (The part before .accelo.com in your Accelo address).

Connecting

Your client presses Connect on their link and approves on Accelo's own screen. Operate As never sees their password.

Check they're connected
curl https://api.operate.as/v1/me/clients \  -H "Authorization: Bearer $OPERATE_AS_API_KEY"
Response
[  {    "id": "6f1c2a7e-...",    "name": "Miller Dental",    "services": [      "accelo"    ]  }]

Permissions

What the client readsPermission it asks for
See your Accelo projects, clients, tickets and timeread(all)
Add and change your Accelo projects, clients, tickets and timewrite(all)

Pass-through

Accelo has no ready-made tools yet. Call any endpoint of its API through Operate As instead, with the client's access attached.

Add the client

In Clients, add your client and select Accelo. Then send them their link.

Your client connects

They sign in with Accelo and approve.

Find the endpoint

Pick the call from Accelo's own API docs. Your path is everything after https://{deployment}.api.accelo.com/api/v0, with the parts in braces filled in from your client's account.

Send it through Operate As

Use the client's ID, the service key accelo and that path. Your Operate As key goes in Authorization; the client's access is added for you.

See Pass-through requests for the full request and response format.

Call any endpoint
curl "https://api.operate.as/v1/clients/6f1c2a7e-.../accelo/staff/whoami" \  -H "Authorization: Bearer $OPERATE_AS_API_KEY"
Response
{  "status": 200,  "data": {    "…": "the service's own response"  },  "encoding": "json"}

When access ends

Operate As renews the sign-in before it runs out and checks it daily. If Accelo refuses to renew it, the service shows Expired, you're alerted, and your client reconnects from the same link.

See Keeping access alive and Removing access.

Calls answer
HTTP/1.1 409 ConflictContent-Type: application/json{  "detail": "Miller Dental's Accelo access ended. Send them their link to reconnect."}
Your webhook receives
{  "id": "evt_3f9a1c…",  "type": "connection.expired",  "createdAt": "2026-10-16T08:00:00+00:00",  "data": {    "clientId": "6f1c2a7e-...",    "clientName": "Miller Dental",    "provider": "accelo",    "services": [      "accelo"    ],    "reconnectUrl": "https://…"  }}