# FIL Scoring API - [FIL Scoring API](https://docs.fraudintelligencelimited.com/index.md): Fraud risk scoring for phone numbers and IP addresses, backed by a consortium of telecom operators. - [Quickstart](https://docs.fraudintelligencelimited.com/quickstart.md): Score your first phone number. - [How scoring works](https://docs.fraudintelligencelimited.com/how-scoring-works.md): What the score is, where the evidence comes from, and what we deliberately don't claim. - [Errors and limits](https://docs.fraudintelligencelimited.com/errors-and-limits.md): The error envelope, rate limits, credits, and idempotency. - [Score a subject (phone and/or IP) synchronously](https://docs.fraudintelligencelimited.com/api-reference/score-a-subject-phone-andor-ip-synchronously.md) - [Full evidence record for a past score (13-month retention)](https://docs.fraudintelligencelimited.com/api-reference/full-evidence-record-for-a-past-score-13-month-retention.md) - [Self-serve metering view for the calling credential](https://docs.fraudintelligencelimited.com/api-reference/self-serve-metering-view-for-the-calling-credential.md) - [Service and per-upstream-source availability](https://docs.fraudintelligencelimited.com/api-reference/service-and-per-upstream-source-availability.md) - [This contract, as served — the machine-readable API definition](https://docs.fraudintelligencelimited.com/api-reference/this-contract-as-served-—-the-machine-readable-api-definition.md): Serves the exact OpenAPI document the running service was built from, for SDK generation and API tooling. Unauthenticated. The document is loaded at boot, so it can never drift from the deployed behaviour. ## OpenAPI Specs - [openapi](https://2npugbuiw5.execute-api.eu-central-1.amazonaws.com/v1/openapi.yaml)