redact-secret · Report
API key (fc-)
fc- + 32 lowercase hex, a dashless random UUIDv4 (version 4, variant 8/9/a/b); legacy dashed-UUID keys are not attributable.
Registry detector firecrawl-api-key since redact-secret#908 (registry pinned at 1127bf9); graduated from a Beta.11 arrival family (#434 slice f, #860 Tier A handoff), contract in benchmarks/lib/beta8/434f.ts. T1.
Research record
From credential-evidence snapshot-2026.10.06.4 · records at 77ce761 · schema 1.8.0. It describes the research on the format, not what any scanner or the product does, and not a support status.
3 events in the review history: 2 observed, 1 reviewed. Latest: observed on 2026-09-28 by automation, project maintainer. Project-maintained review is not independent validation. The family record at this release.
Format
Provider format research from credential-evidence snapshot-2026.10.06.4 · records at 77ce761 · schema 1.8.0.
What it looks like
- Descriptive pattern
^fc-[0-9a-f]{12}4[0-9a-f]{3}[89ab][0-9a-f]{15}$
Parts are shown as recorded. Evidence classes belong to the facts below; no class is assigned to a part.
Format facts
Provider documented ·
provider-source· current · observed 2026-09-28parseApi.ts strips fc- and re-inserts the 8-4-4-4-12 dashes (last changed 2026-05-15, re-checked 2026-09-28); api_keys.key is uuid().defaultRandom(): the docs and SDK document the fc- prefix; provider server code (ruling R1) makes the body a dashless lowercase random UUIDv4 (32 hex, version nibble 4, variant 8/9/a/b), 35 in all
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/lib/parseApi.tsprovider-documentation · last read 2026-09-28 · latest outcome read · supports the docs and SDK document the fc- prefix; provider server code (ruling R1) makes the body a dashless lowercase random UUIDv4 (32 hex, version nibble 4, variant 8/9/a/b), 35 in all
Provider documented ·
field-prefix· current · observed 2026-09-28prefix: fc-
- docs.firecrawl.dev/api-reference/v2-introductionprovider-documentation · last read 2026-09-28 · latest outcome read · supports prefix: fc-
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/js-sdk/firecrawl/src/v2/client.tsprovider-documentation · last read 2026-09-28 · latest outcome read · supports startsWith('fc-') · #L154
Provider documented ·
field-body· current · observed 2026-09-28body: exactly 32 lowercase hex: a dashless UUID
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/db/schema/public.tsprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports uuid("key").defaultRandom() · #L68-L72
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/lib/parseApi.tsprovider-documentation · last read 2026-09-28 · latest outcome read · supports body: exactly 32 lowercase hex: a dashless UUID
- github.com/redact-secret/redact-secret/issues/860issue-or-discussion · last read 2026-09-29 · latest outcome read · supports R1 · #issuecomment-5852413851
Provider documented ·
field-uuid-v4-nibbles· current · observed 2026-09-28uuid-v4-nibbles: body byte 12 is 4 and body byte 16 is one of 8 9 a b (The validator would accept versions 1–8; issued keys are v4, so other nibbles back twins.)
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/controllers/auth.tsprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports UUID_RE · #L757-L795
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/db/schema/public.tsprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports a Postgres random UUIDv4 · #L68-L72
Provider documented ·
field-separators· current · observed 2026-09-28separators: none after the prefix; no checksum
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/lib/parseApi.tsprovider-documentation · last read 2026-09-28 · latest outcome read · supports separators: none after the prefix; no checksum
Unresolved ·
field-boundary· current · observed 2026-09-28boundary: a key glued to an identifier on either side ([A-Za-z0-9_-]) is not claimed; CSS and calendar classes such as fc-daygrid-day are glued or fail the body
- redact-secret/redact-secret @ 270faf84dc12f6a4a4cf61fe3ffab7aadc4f7262: docs/audits/evidence/860/firecrawl.mdprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports implementation notes
Provider documented ·
field-legacy-keys· current · observed 2026-09-28legacy-keys: bare dashed UUID keys from before 2024-04-16 are still accepted by parseApi (Not attributable to Firecrawl: excluded, and never a benign control either (a dashed UUID is authored only as a request id).)
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/lib/parseApi.tsprovider-documentation · last read 2026-09-28 · latest outcome read · supports legacy passthrough
Unresolved ·
field-other-credentials· current · observed 2026-09-28other-credentials: fco_ OAuth access tokens and fcmcp_ MCP delegated credentials have no documented fixed grammar (Not authored either way.)
- redact-secret/redact-secret @ 270faf84dc12f6a4a4cf61fe3ffab7aadc4f7262: docs/audits/evidence/860/firecrawl.mdprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports excluded shapes
Tool corroborated ·
field-peer-lag· current · observed 2026-09-28peer-lag: no rule in trufflehog 3.97.4 or gitleaks 8.30.1
- gitleaks/gitleaks @ v8.30.1: config/gitleaks.tomlscanner-rule-source · last read 2026-10-04 · latest outcome read · supports no firecrawl rule
- trufflesecurity/trufflehog @ v3.97.4: pkg/detectorsscanner-rule-source · last read 2026-09-29 · latest outcome read · supports no firecrawl detector directory
Unresolved ·
listed-references· current · observed 2026-09-28The legacy contract lists 12 references without stating which property each supports.
- docs.firecrawl.dev/api-reference/v2-introductionprovider-documentation · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/controllers/auth.tsprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract · #L757-L795
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0other · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/js-sdk/firecrawl/src/v2/client.tsprovider-documentation · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract · #L154
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/db/schema/public.tsprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract · #L68-L72
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0: apps/api/src/lib/parseApi.tsprovider-documentation · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret/issues/908issue-or-discussion · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract
- redact-secret/redact-secret @ 270faf84dc12f6a4a4cf61fe3ffab7aadc4f7262: docs/audits/evidence/860/firecrawl.mdprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract
- redact-secret/redact-secret @ 270faf84dc12f6a4a4cf61fe3ffab7aadc4f7262: docs/audits/evidence/860/README.mdproject-research-note · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret/issues/860issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #issuecomment-5852413851
- github.com/redact-secret/redact-secret/issues/860issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret-benchmarks/issues/434issue-or-discussion · last read 2026-09-28 · latest outcome read · supports Listed as a reference by the legacy contract
Provider documented ·
dossier-research· current · observed 2026-09-28Legacy dossier research (verdict ready, tier T1) cited 2 sources; the dossier does not attribute sources to individual properties.
- firecrawl/firecrawl @ f75a8d40b103129f56f947418bfa06a04a9ad5b0other · last read 2026-09-28 · latest outcome read · supports Cited by the legacy dossier research for this family
- redact-secret/redact-secret @ 8b6a5fde52ecb4dfce13f09c7a947062d21483c7: docs/audits/evidence/860/firecrawl.mdproject-research-note · last read 2026-09-28 · latest outcome read · supports Final research evidence recorded by the legacy dossier
Provider documented ·
taxonomy-sources· current · observed 2026-09-28The legacy taxonomy lists 2 sources for this family. The taxonomy records no date; the dossier researchedAt is used as the observed-at date.
- docs.firecrawl.dev/api-reference/v2-introductionprovider-documentation · last read 2026-09-28 · latest outcome read · supports Listed as a source for this family in the legacy taxonomy
- redact-secret/redact-secret @ 270faf84dc12f6a4a4cf61fe3ffab7aadc4f7262: docs/audits/evidence/860/firecrawl.mdprovider-sdk-source · last read 2026-09-28 · latest outcome read · supports Listed as a source for this family in the legacy taxonomy
Open questions
No open question is recorded for this revision.
Benchmark dossier notes
From the provider dossier, as written. The evidence level above says how well the format is backed; a fact the dossier does not record is not shown.
- Shape
- prefix
fc-, then exactly 32 lowercase hex characters (35 in total): a dashless UUIDv4, so hex character 13 is4and character 17 is one of8 9 a b. No separators after the prefix, no checksum. - Basis
- prefix T1 from provider docs and SDK/MCP code (
startsWith('fc-')). Body T1 under R1 from provider server code: the key normalizer stripsfc-and re-inserts dashes "based on the uuidv4 format", theapi_keys.keycolumn is a Postgres random UUID default, and the auth controller rejects anything failing a UUID check. Re-checked 2026-09-28. - Issuance
- not attempted; optional check of one dashboard key.
- Contract in core
- detector-families.md.
In this benchmark
Fixture rows on the current run. Counts are for redact-secret in published · redact-secret 0.1.0-beta.14 mode.
- Fixtures
- 48
- Left readable
- 0
- Redacted too much
- 0
- False alarms
- 0
48 fixtures: 19 expect a redaction, 29 must stay quiet. See every row
| Evidence level | Fixtures | Left readable | Too much | False alarms |
|---|---|---|---|---|
| T1Provider-documented | 19 | 0 | 0 | 0 |
| T2Tool-corroborated | 20 | 0 | 0 | 0 |
| T3Project policy | 9 | 0 | 0 | 0 |
Every scanner on the same fixtures
In run order. Counts are what each scanner recorded on this family's fixtures, whichever rules it has; a scanner with no rule for the family has nothing to report on it.
| Scanner | Fixtures | Left readable | Too much | False alarms |
|---|---|---|---|---|
| flare-redactRuntime library · 1.6.1 · Published npm package · secrets-only (pii, generic_assignment disabled) · JavaScript engineNo rule maps to it | 48 | 16 | 3 | 0 |
| gitleaksRepository scanner · 8.30.1 · Directory scan · default rulesNo rule maps to it | 48 | 9 | 0 | 2 |
| redact-secretProduct measured here · 0.1.0-beta.14 · Published npm package · default detectors1 detector mapped | 48 | 0 | 0 | 0 |
| trufflehogRepository scanner · 3.97.4 · Filesystem scan · verification disabledNo rule maps to it | 48 | 19 | 0 | 0 |
Looks like it, but isn't
Values the dossier records as resembling this credential without being one.
- Collisions
fc-is short and appears in CSS and calendar class names (fc-daygrid-day), which fail the body. A bare dashed UUID is not attributable and stays out.
Scanner rules for this family
Mapped by hand (reviewed 2026-09-30) from each scanner's pinned rule file, never from what a scanner found on the fixtures.
No peer rule maps to this family
None of the reviewed peer scanners has a rule that can match a credential of this family.
None mapped
Fixtures in this family
48 rows, redact-secret's outcome on each. Rows that need a look come first (0), then the rest in corpus order. Choose "Every scanner" to see each scanner's outcome for the same rows.
| Fixture | Kind and evidence | redact-secret |
|---|---|---|
firecrawl-api-key-actions-envfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-bare-prosefirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-bearer-headerfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-chat-pastefirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-compose-envfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-curl-bearerfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-digest-encoded-valuefirecrawl · benign-encoded-value | Must not flagT2 · Tool-corroborated | Quiet |
firecrawl-api-key-dotenvfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-exportfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-go-httpfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-js-clientfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-json-api-keyfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-json-tokenfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-key-shape-barefirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-key-shape-quotedfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-key-shape-unicode-crlffirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-mcp-envfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-python-appfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-sdk-kwargfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-uppercase-prefix-twinfirecrawl · prefix-near-miss | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-x-api-key-headerfirecrawl · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
firecrawl-api-key-actions-secret-referencefirecrawl · templated-reference | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-body-31-twinfirecrawl · wrong-length | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-body-33-twinfirecrawl · wrong-length | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-css-classes-near-missfirecrawl · format-near-miss | Must not flagT2 · Tool-corroborated | Quiet |
firecrawl-api-key-dashed-uuid-twinfirecrawl · boundary-violation | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-docs-ctor-placeholderfirecrawl · documentation-placeholder | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-env-reference-referencefirecrawl · templated-reference | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-g-in-body-twinfirecrawl · wrong-alphabet | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-key-guidance-prosefirecrawl · prose-mention | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-label-prosefirecrawl · benign-lookalike | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-leading-glue-twinfirecrawl · boundary-violation | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-maskfirecrawl · benign-lookalike | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-md5-cache-key-near-missfirecrawl · format-near-miss | Must not flagT2 · Tool-corroborated | Quiet |
firecrawl-api-key-prefix-onlyfirecrawl · benign-lookalike | Must not flagT2 · Tool-corroborated | Quiet |
firecrawl-api-key-referencefirecrawl · benign-lookalike | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-request-uuid-public-idfirecrawl · public-identifier | Must not flagT2 · Tool-corroborated | Quiet |
firecrawl-api-key-short-bodyfirecrawl · benign-lookalike | Must not flagT2 · Tool-corroborated | Quiet |
firecrawl-api-key-short-samples-placeholderfirecrawl · documentation-placeholder | Must not flagT3 · Project policy | Quiet |
firecrawl-api-key-trailing-glue-twinfirecrawl · boundary-violation | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-underscore-prefix-twinfirecrawl · prefix-near-miss | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-uppercase-hex-twinfirecrawl · wrong-alphabet | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-variant-7-twinfirecrawl · wrong-alphabet | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-variant-c-twinfirecrawl · wrong-alphabet | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-version-0-twinfirecrawl · wrong-alphabet | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-version-1-twinfirecrawl · wrong-alphabet | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-version-7-twinfirecrawl · wrong-alphabet | Must not flagT2 · Tool-corroborated · twin | Quiet |
firecrawl-api-key-your-api-key-placeholderfirecrawl · documentation-placeholder | Must not flagT3 · Project policy | Quiet |
Sources
Researched 2026-09-28.
Documentation and code
- docs.firecrawl.dev/api-reference/v2-introduction
- github.com/redact-secret/redact-secret/blob/270faf84dc12f6a4a4cf61fe3ffab7aadc4f7262/docs/audits/evidence/860/firecrawl.md
- github.com/firecrawl/firecrawl/tree/f75a8d40b103129f56f947418bfa06a04a9ad5b0
Research log
- redact-secret/redact-secret#860Research issue
- redact-secret/redact-secret#908Research issue
- redact-secret/redact-secret-benchmarks#434Research issue
- Final evidence, pinned to a commit/redact-secret/redact-secret/blob/8b6a5fde52ecb4dfce13f09c7a947062d21483c7/docs/audits/evidence/860/firecrawl.md