Changelog

Every change to the Fare API, newest first. Within /v1 changes are additive only (see Versioning). Fare has not launched publicly yet; the renames and the removal below happened before launch.

2026-10-28

• Fixing PDFs moved to Remediate. The old endpoint now returns 410 moved with that link, and is never billed. POST /v1/pdf/validate is unchanged.

2026-10-15 (MCP)

• Remote MCP server at https://api.fare.dev/mcp with tools grade_email_security and validate_pdf_ua, billed like the REST calls. OAuth 2.1 (dynamic registration, PKCE) or an API key.

2026-10-15

• GET /v1/email-grade: the SPF check now counts DNS lookups through nested include: and redirect= records, as receivers do. It fails a record that needs more than 10, and fails an include that has no SPF record. The SPF notes show how many of the 10 are used.
• Every error is now JSON with a stable code, including the ones the framework raises: not_found (404), method_not_allowed (405), file_too_large (413), unsupported_media_type (415) and invalid_request (400, such as a missing domain).
• Billing is usage only. Calls from a key without a card on file return 402 payment_required, and from a suspended account 402 account_suspended. These replace subscription_required.
• GET /v1/account returns access and monthly_cap. These replace plan and monthly_quota.

2026-10-14

• GET /v1/account: your key's status, limits and calls this month.

2026-10-13

• POST /v1/pdf/validate: PDF/UA-1 and PDF/UA-2 validation with veraPDF rule ids.
• GET /v1/email-grade: an A–F grade for a domain's SPF, DKIM and DMARC, with fixes.