Official MCP RegistryListed
Jid: the trust API for AI agents
Verify a business before an agent pays, signs or buys: registry-cited decision and signed receipt.
First seen 5 Oct 2026. Evidence as of 7 Oct 2026.
7
Tools
From an anonymous probe
1
Source listings
Each with its own history
6
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| check_email | Paste the raw headers of a message (Show original / View source). Returns checks and a read (headline, recommendation engage | verify_first | do_not_engage, failed checks, lookup links: show the user the read first): DMARC/SPF/DKIM as the receiving server recorded them, DKIM alignment with From, Reply-To going to another domain, and a From domain or display name that imitates a known business. The headers are processed in memory and never stored. Deterministic, no AI. Counts as 1 check with a key; free tier without one. | Not declared |
| get_business_file | The full Jid file for one business: status, identifiers, every current fact with its source, verification date, next check and confidence, owner statements (labelled self-reported), possible matches and the change history. | Not declared |
| get_receipt | Retrieve a stored, Ed25519-signed verification receipt by receipt_id: the inputs, decision, reasons, fact ids and value hashes, rules version and time. Use it to prove what was checked before an action. Free; not a check. | Not declared |
| qualify_counterparty | Before you engage with a business that contacted you (a form submission, an inquiry, an outreach reply), qualify it. Pass the sender's e-mail (or the company domain), the company name if given, and the context (form type, message, stated value, stated role). Jid checks the domain (MX, SPF, DMARC, registration date over RDAP, the website), matches it to a Jid business file, reads that file's registrations, licences, filings, capital raises, loans and adverse records, and returns signals (each with source, source_url, verified_at), three scores (legitimacy, capacity, consistency, 0 to 100 with reasons), checks (each pass, fail or unknown with one line of evidence and a lookup link) and a read: a one-line headline ("Passed all 7 checks Jid could run. Recommendation: engage."), the recommendation (engage, verify_first, do_not_engage), the failed checks and up to 4 links to verify by hand. Show the user the read first. Also a signed receipt. Businesses only: personal webmail or no matched business returns individual_or_unverified with no scores. A possible list match is 'review', never a finding. Requires an API key; counts as 2 checks. Not for credit, employment, insurance or housing decisions about any person. | Not declared |
| screen | A fast engage-or-not answer before you reply to, onboard, pay or buy from someone. Pass any of domain, url, email, phone or company_name, the context (lead, inbound_email, partnership, vendor, purchase, marketplace_seller, agent_action), an optional amount (USD) and a policy (strict, balanced, permissive; default balanced). Returns engage (true or false), risk (low, medium, high, unknown), confidence 0 to 1, subject_type, reasons (each with source and evidence), concrete mitigations, checks and a read (headline, recommendation engage | verify_first | do_not_engage, failed checks, lookup links: show the user the read first) and a signed receipt_id. Deterministic, no AI in the decision, usually under a second. Act on engage=true; on engage=false, show the reasons and mitigations to the user. A possible sanctions name match is engage=false with 'manual review', never a finding. Individuals get only technical checks of the address, phone or domain. engage is advisory. Rules: https://jid.com/screen-rules. Counts as 1 check with a key; free tier without one. | Not declared |
| search_business | Find Jid business files by name or by any registry number (FEI, LEI, SEC CIK, DUNS, NDC labeler code, state licence or entity number). Returns candidate files with status and match evidence. | Not declared |
| verify_business | Check a business before an agent pays, signs, books, hires or buys. Pass the Jid id (or a name or registry number) and, to get a decision, the activity. Returns decision (proceed, review, stop or insufficient_data) with reasons: each names the requirement, met (true, false or unknown), the fact ids, source, verified_at and fresh_until, plus a signed receipt_id. Without an activity it returns the status and every cited fact, as before. Activities: general_commerce (General commerce (default)); sell_prescription_drugs (Sell prescription drugs); manufacture_drugs (Manufacture drugs); sell_medical_devices (Sell medical devices); haul_freight (Haul freight (for-hire motor carrier)); broker_freight (Broker freight); sell_alcohol (Sell alcohol (wholesale or import)); produce_spirits (Produce distilled spirits); provide_investment_advice (Provide investment advice); accept_deposits (Accept deposits); lend (Lend); bill_medicare_medicaid (Bill Medicare or Medicaid); healthcare_supplier (Health care supplier); federal_contracting (Federal contracting); charitable_solicitation (Charitable solicitation); operate_psilocybin_healing_center (Operate a psilocybin healing or service centre (CO, OR)). | Not declared |
Change history
- screen: input schema changed (+signal, +site)
- screen: description changed (+"mitigations, checks and a read (headline, recommendation engage | verify_first | do_not_engage, failed checks, lookup links: show the user the read first)" -"mitigations")
- qualify_counterparty: input schema changed (+browser_timezone, +ip_asn, +ip_region, +signal, +site, +stated_country)
- qualify_counterparty: description changed (+"checks (each pass, fail or unknown with one line of evidence and" +"lookup link) and a read: a one-line headline ("Passed all 7 checks Jid could run. Recommendation: engage."), the" +"(engage,")
- check_email: tool added
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | com.jid/jid | 5 Oct 2026 | 7 Oct 2026 | 1 |