{"slug":"jwt-openverbs-com-v1-sign-6cd7b4","title":"Mint a signed JSON Web Token from a JSON claims object, using a shared secret (H","host":"jwt.openverbs.com","method":"POST","resource":"https://jwt.openverbs.com/v1/sign","category":"market","description":"Mint a signed JSON Web Token from a JSON claims object, using a shared secret (HS*) or a PEM private key (RS/ES/PS). Supports expiresInSec, notBeforeSec, issuer, audience, subject and keyid. An unusable key or option is rejected before payment.","price_listed":0.004,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":4,"reported_payers_30d":2,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"algorithm":"HS256","expiresInSec":1,"key":"example","notBeforeSec":1,"payload":{}},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"algorithm":{"description":"Signing algorithm, one of HS256, HS384, HS512, RS256, RS384, RS512, ES256, ES384, ES512, PS256, PS384, PS512.","enum":["HS256","HS384","HS512","RS256","RS384","RS512","ES256","ES384","ES512","PS256","PS384","PS512"],"type":"string"},"audience":{"description":"Set the `aud` claim.","type":"string"},"expiresInSec":{"description":"Set `exp` this many seconds from now.","minimum":0,"type":"integer"},"issuer":{"description":"Set the `iss` claim.","type":"string"},"key":{"description":"The HMAC shared secret (HS*) or the PEM-encoded private key (RS/ES/PS).","maxLength":16384,"minLength":1,"type":"string"},"keyid":{"description":"Set the `kid` header.","type":"string"},"noTimestamp":{"description":"Omit the automatic `iat` claim.","type":"boolean"},"notBeforeSec":{"description":"Set `nbf` this many seconds from now.","minimum":0,"type":"integer"},"payload":{"description":"The claims to encode (an object).","type":"object"},"subject":{"description":"Set the `sub` claim.","type":"string"}},"required":["payload","key","algorithm"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Mint a signed JSON Web Token from a JSON claims object, using a shared secret (HS*) or a PEM private key (RS/ES/PS). Supports expiresInSec, notBeforeSec, issuer, audience, subject and keyid. An unusable key or option is rejected before payment.","last_updated":"2026-09-14T19:59:55.66Z","schemes":["exact"]}