C4C REST API

★ Only Publicly Available OpenAPI DocumentFinanceBankingapiKey18 EndpointsREST

For Agents

Browse Swiss crowdlending opportunities, place bids, manage signed contracts, and read portfolio state on Crowd4Cash through an 18-endpoint REST API.

Quickstart

Get started with C4C REST API in minutes using your preferred integration method.

# Add to your MCP client config (Claude Desktop, Cursor, Windsurf)
{
  "jentic": {
    "url": "https://api.jentic.com/mcp",
    "auth": "oauth"
  }
}

# Then ask your agent:
"place a bid on a crowd4cash loan opportunity"

# → Jentic returns the GET /events tool with parameter schema, agent executes.

Capabilities

What an agent can do with C4C REST API API.

Authenticate against Crowd4Cash to obtain a bearer credential for subsequent calls

List active loan opportunities so an investor agent can rank them before placing bids

Place a bid on a specific loan opportunity at a chosen amount

Retrieve a signed contract by loanId for record keeping or downstream reporting

GET STARTED

Start building with C4C REST API API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI document for C4C REST API, keeping it validated and agent-ready.

Jentic publishes the only available OpenAPI specification for Crowd4Cash, keeping it validated and agent-ready. Crowd4Cash is a Swiss crowdlending platform that connects investors with consumer, intermediary, and rental loan opportunities. The API exposes loan listings, opportunity feeds, bidding, contracts, and portfolio access so that investor partners can place bids, manage contracts, and pull portfolio state programmatically. Use it to integrate Swiss crowdlending into a partner platform without building bespoke screen scrapers.

Use Cases

Patterns agents use C4C REST API API for, with concrete tasks.

★ Automated Bidding on Loan Opportunities

An investor wants to bid on every loan that fits their risk criteria as soon as it opens. An agent polls /Opportunities, filters by interest rate and term, and posts /Bid for each match. Manual bidding inside the Crowd4Cash UI becomes a continuous policy-driven process.

GET /Opportunities, filter by yield criteria, then POST /Bid with the chosen amount on each qualifying loan

Portfolio Reporting for Investors

An investor with many loans needs a current view of exposure and yield. An agent calls /Portfolio for the latest position, /Bids for in-flight commitments, and /Contracts for signed agreements. The result is a single dashboard line per investor, rebuilt automatically each morning.

Pull /Portfolio, /Bids, and /Contracts, then aggregate exposure and yield by loan type

Contract Retrieval for Audit

When auditors review a loan book, they need the signed contract for every position. An agent walks the investor's contracts via /Contracts/{loanId} and /Contracts/{partnerId}/{loanId}, pulling each contract and storing it in document management. The audit pack assembles in minutes.

List the investor's contracts and call /Contracts/{loanId} for each to retrieve the full signed document

Rental Loan Specialisation

Crowd4Cash offers rental-loan products with their own contract format. An agent reads /RentalLoan to discover available rental-loan opportunities and /Contracts/RentalLoan/{loanId} for the matching contract, separating rental-loan flow from consumer and intermediary loan pipelines.

List rental-loan opportunities and retrieve each rental-loan contract for the chosen positions

AI Agent Investing via Jentic

An AI agent that manages investor capital uses Jentic to drive Crowd4Cash by intent. Searching for 'place a bid on a swiss loan' returns the right operation, the agent places bids and reads contracts with managed credentials, and surfaces yield back to the investor without ever exposing the API key.

Use Jentic to find the Crowd4Cash bidding operation, execute it with the chosen loan and amount, and read /Portfolio to confirm the bid landed

Key Endpoints

18 endpoints — jentic publishes the only available openapi specification for crowd4cash, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/Authenticate

Authenticate and obtain a bearer credential

GET

/Opportunities

List active loan opportunities

POST

/Bid

Place a bid on a loan opportunity

GET

/Bids

List bids placed by the investor

GET

/Contracts/{loanId}

Retrieve a signed contract by loanId

GET

/Contracts/RentalLoan/{loanId}

Retrieve a rental-loan contract

GET

/Portfolio

Read the investor portfolio

POST

/Authenticate

Authenticate and obtain a bearer credential

GET

/Opportunities

List active loan opportunities

POST

/Bid

Place a bid on a loan opportunity

GET

/Bids

List bids placed by the investor

GET

/Contracts/{loanId}

Retrieve a signed contract by loanId

Why though Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Crowd4Cash bearer credentials are stored encrypted in the Jentic vault and injected at execution time, so investor secrets never enter agent prompts.

Intent-based discovery

Agents search Jentic with intents like 'place a bid on a swiss crowdlending loan' and Jentic returns the matching Crowd4Cash operation, its schema, and the loanId field the call needs.

Time to first call

Direct Crowd4Cash integration: 1-2 days for auth, opportunity polling, and bid placement plumbing. Through Jentic: under an hour.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Complementary

Stripe

Stripe handles fiat payment rails that Crowd4Cash investors might use for funding the platform off-API.

Pair them when the investor's funding flow runs through Stripe and the lending decisions through Crowd4Cash.

Complementary

Extensiv

An unrelated operations platform; included as a complementary recordkeeping system in some investor backends.

Use when investor operations rely on Extensiv for inventory-style tracking; Crowd4Cash remains the lending source of truth.

Complementary

New Relic

Monitors uptime of the Crowd4Cash integration so missed bids surface as alerts.

Use to alert when /Opportunities polling errors out or bid placement latency exceeds a threshold.

FAQs

Specific to using C4C REST API API through Jentic.

Why is there no official OpenAPI spec for Crowd4Cash?

Crowd Solutions AG, the operator of Crowd4Cash, does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call C4C REST API via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.

What authentication does the Crowd4Cash API use?

Crowd4Cash uses an API-key style bearer credential. Call POST /Authenticate to exchange your investor credentials for a bearer token, then send the token in the Authorization header on subsequent calls. Through Jentic, the credential is held in the credential vault and injected at execution time.

Can I place a bid on a loan with the API?

Yes. POST /Bid with the loanId and bid amount places a bid on an active opportunity. List your placed bids with GET /Bids and your signed contracts with GET /Contracts/{loanId} once a bid converts into a position.

What are the rate limits for the Crowd4Cash API?

The spec does not declare numeric rate limits. Crowd4Cash enforces fair-use throttling on /Opportunities and /Bid. Build retries with backoff and avoid tight polling — read /Opportunities at most every few seconds when watching for new openings.

How do I bid on a Crowd4Cash opportunity through Jentic?

Install the SDK with `pip install jentic`. Search Jentic for `place a bid on a crowd4cash loan`, load the schema for POST /Bid, and execute it with the loanId and amount. Jentic handles authentication so the agent never sees the raw bearer token.

Are rental loans handled separately?

Yes. Rental loans have their own opportunity endpoint /RentalLoan and contract retrieval /Contracts/RentalLoan/{loanId}. Standard and intermediary loans use /Loan, /IntermediaryLoan, and /Contracts/{loanId}.