Cortex — remote MCP server

The counterparty-relationship system of record, as an MCP connector. Version 0.2.0.

Connect it

Add a custom connector with this URL:

You will be asked to sign in with your own Cortex email and password. There is no shared service account: the tools you are offered are the API routes your role can reach, and everything you do is attributed to you in Cortex's audit trail.

No self-signup. An ADMINISTRATION user invites you from the Cortex panel. A first sign-in asks you to set a permanent password; an MFA-enrolled account asks for its authenticator code.

What a connected session gets

• Tools — one per API route your role can reach, minus the exemptions below.
• Resources — 5 documents, starting at crm://guide/onboarding: what the service is, the entity map, the API conventions and error contract, and the rules that surprise everyone.
• Prompts — 8 multi-step procedures you can run rather than read. Only those your role can complete end to end are offered.

Nothing needs to be handed over by an operator. That is the point.

What no role can do here

Every route below exists in the API and has no tool on this surface, whoever you are:

GET /api/v1/credentials/{credentialId}/material

INV-4 and POP-d462 §7.3.

POST /ingress/email

Wrapping an ingress would let a caller forge SYSTEM-attributed captured provenance — a message that reads as something the counterparty sent.

POST /ingress/telegram

Same as /ingress/email — captured provenance must not be forgeable.

DELETE /api/v1/messages/{messageId}

D-418-4(b), operator decision.

POST /api/v1/users

D-418-4(c), operator decision: user management is READS ONLY here.

PUT /api/v1/users/{userId}/role

D-418-4(c).

DELETE /api/v1/users/{userId}

D-418-4(c).

Endpoints

• https://cortex-mcp.paymentbrains.com/mcp — the MCP endpoint (Streamable HTTP)
• https://cortex-mcp.paymentbrains.com/.well-known/oauth-protected-resource/mcp
• https://cortex-mcp.paymentbrains.com/.well-known/oauth-authorization-server
• https://cortex-mcp.paymentbrains.com/health