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JustCall (BYOK)

Read your JustCall phone numbers, contacts, SMS texts and threads, tags, user groups, AI voice agents, sales dialer campaigns and call analytics with your own API key and secret

Unify Dynamics LLC

Tools9read-only
Sign-inBYOKbring your own key
Key keptNeverused for one call only
PriceFreeoptional Pro limits
ProviderJustCallunofficial, not affiliated
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

Which phone numbers does my JustCall account have?
Tools called
list_phone_numbers
Find the JustCall contact with number +14155550123
Tools called
list_contacts
What texts did we exchange with +14155550123 in JustCall?
Tools called
list_texts
Which SMS threads are open on my JustCall number?
Tools called
list_text_threads
Which SMS tags exist in JustCall?
Tools called
list_text_tags
What user groups does JustCall have?
Tools called
list_user_groups

About

JustCall (BYOK) lets an AI assistant read your own JustCall data through the JustCall API with a key you supply (JustCall API key and secret joined by a colon (api_key:api_secret)). Read-only: 9 tools (list_phone_numbers, list_contacts, list_texts, list_text_threads, list_text_tags, list_user_groups, list_voice_agents, list_sales_dialer_campaigns, get_account_call_analytics). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to api.justcall.io. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by JustCall. JustCall and its logos are trademarks of their owners and are used only to say which service the connector works with.

Sources: Live from the JustCall API (api.justcall.io) with a BYOK key; documentation: https://developer.justcall.io/reference/authentication. Endpoints checked against that documentation on 2026-10-16.

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.

What it can do

9 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Read your data9 tools
  • List phone numbersList the JustCall phone numbers of the account with line name, type, capabilities, availability setting and status.
  • List contactsList JustCall contacts with name, number, email, company, status (Blacklist, DND, DNM) and notes.
  • List textsList SMS and MMS texts with direction, JustCall number, contact, delivery status, body and date.
  • List text threadsList SMS threads of one JustCall phone line with the latest text and applied tags.
  • List text tagsList the SMS thread tags defined in JustCall.
  • List user groupsList JustCall user groups with extension and members.
  • List voice agentsList JustCall AI voice agents with name, active flag, assigned numbers and creation time.
  • List sales dialer campaignsList Sales Dialer campaigns with type (PowerDial, Predictive, Dynamic), status, default number and creator.
  • Get account call analyticsGet account-level call analytics for a date range: incoming and outgoing calls, answer rate, missed calls, average talk, hold and queue times.

Information

PublisherUnify Dynamics LLC
CategoryWork & productivity
LanguagesEnglish
Built forWorldwide
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpointhttps://byok-justcall.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryWorldwide
FunctionOther
LayerDeep connectors

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Get JustCall (BYOK)

Free · BYOK · Read-only

BYOK: bring your own keyThis connector uses your own JustCall JustCall API key and secret joined by a colon (api_key:api_secret). Create one at https://app.justcall.io/app/developersApiCredentials, with the fewest permissions it needs (read-only if the provider offers it). Your assistant sends it in the X-Upstream-Key header with every request. It is used for that one call only: never stored, logged or cached, and only ever sent to JustCall. Revoke it at the provider whenever you like. Unofficial connector: not affiliated with JustCall.